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Mark Henry Alexandrite Jewelry

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Mark Henry 1.89 ct. Alexandrite Ring
By Mark Henry
Located in New York, NY
Metal: 18kt Gold Alexandrite Weight: 1.89 ct. Princess Cut Alexandrite Weight: 0.76 ct. Pear Shape
Category

2010s American Fashion Rings

Materials

Alexandrite, Diamond, 18k Gold

Mark Henry 1.64 ct. Alexandrite Ring
By Mark Henry
Located in New York, NY
Metal: 18kt Gold Alexandrite Weight: 1.64 ct. Cadillac Diamond Weight: 1.02 ct. Round Diamond
Category

2010s American Fashion Rings

Materials

Alexandrite, Diamond, 18k Gold

Mark Henry AGL Certified 4.27 ct. Alexandrite Ring
By Mark Henry
Located in New York, NY
Metal: 18kt Gold Alexandrite Weight: 4.27 ct. Baguette Diamond Weight: 1.29 ct. Round Diamond
Category

2010s American Solitaire Rings

Materials

Alexandrite, Diamond, 18k Gold

Mark Henry 1.83 Alexandrite and Diamond Cocktail Ring
By Mark Henry
Located in New York, NY
Metal: 18kt Gold Alexandrite Weight: 1.83 ct. Fancy Diamond Weight: 0.35 ct. Round Diamond Weight
Category

2010s American Fashion Rings

Materials

Alexandrite, Diamond, Sapphire, 18k Gold

Mark Henry 18k White Gold Alexandrite & Diamond Huggie Earrings
By Mark Henry
Located in Towson, MD
One pair of 18-karat white gold huggie hoop earrings, designed by Mark Henry, featuring six (6
Category

21st Century and Contemporary Contemporary Hoop Earrings

Materials

Diamond, Alexandrite, 18k Gold, White Gold

Mark Henry Alexandrite and Diamond Ring in 18k Gold
By Mark Henry
Located in Towson, MD
One 18 karat white gold ring designed by Mark Henry, set with one (1) oval natural Alexandrite
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry Natural Alexandrite and Diamond Enameled 'Cosmo, ' Pendant, 18k
By Mark Henry
Located in New York, NY
recreate this beauty in the form of fine jewelry. A vivid round alexandrite is set amongst a cluster of
Category

2010s American Contemporary Pendant Necklaces

Materials

Alexandrite, Diamond, 18k Gold, Enamel

Mark Henry Natural Brazilian Alexandrite, Moonstone and Diamond Necklace, 18kt
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Moonstone, Alexandrite, Diamond, 18k Gold

Mark Henry 18 Karat Yellow Gold Alexandrite and Diamond Journey Necklace
By Mark Henry
Located in Scottsdale, AZ
Designer: Mark Henry Material: 18K yellow gold Diamond: 3 round brilliant cut = 0.18cttw Color: G
Category

21st Century and Contemporary Pendant Necklaces

Materials

Alexandrite, Diamond, 18k Gold, Yellow Gold

Mark Henry Alexandrite and Diamond Pendant Necklace in 18k White Gold
By Mark Henry
Located in Towson, MD
One 18 karat white gold pendant designed by Mark Henry, set with four (4) natural oval Alexandrite
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Alexandrite, Diamond, 18k Gold, White Gold, 14k Gold

Mark Henry Alexandrite and Diamond Pendant Necklace in 18k White Gold
By Mark Henry
Located in Towson, MD
One 18 karat white gold pendant designed by Mark Henry, set with four (4) natural oval Alexandrite
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Diamond, Alexandrite, 14k Gold, 18k Gold, White Gold

Mark Henry 1.09 Carat Natural Brazilian Alexandrite and Diamond Pendant, 18kt
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Alexandrite, 18k Gold, White Gold

Mark Henry Gubelin Certified 1.35 Carat Alexandrite and Yellow Diamond Ring
By Mark Henry
Located in New York, NY
gem connoisseurs and jewelry fanatics alike. A stunning alexandrite commands the attention as it lays
Category

2010s American Art Deco Cocktail Rings

Materials

Alexandrite, Yellow Diamond, 18k Gold

Certified Mark Henry 1.77 Carat Natural Brazilian Alexandrite and Diamond Ring
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry Gabriela Ring Natural Brazilian Alexandrite and Diamond, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Wedding Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Certified Mark Henry 1.79 Carat Natural Brazilian Alexandrite and Diamond Ring
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

AGL Certified 3.10 Carat Natural Brazilian Alexandrite Ring from Mark Henry
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Certified Mark Henry 0.97 Carat Natural Brazilian Alexandrite and Diamond Ring
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 0.88 Ct. Natural Brazilian Alexandrite and Diamond Necklace, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, Alexandrite, 18k Gold

Mark Henry 1.33 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 1.35 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 0.71 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, Yellow Gold

Mark Henry 1.95 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Cocktail Rings

Materials

Alexandrite, Diamond, 18k Gold, Yellow Gold

Mark Henry 1.39 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Cocktail Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 0.71 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Alexandrite, Diamond, 18k Gold, Yellow Gold

Mark Henry 1.34 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 1.30 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 1.45 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 2.72 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, White Gold, 18k Gold

Mark Henry 2.46 Ct. Tw Brazilian Alexandrite and Diamond Medallion, 18kt Yellow
By Mark Henry
Located in New York, NY
shaped alexandrites are scattered amongst an assortment of illuminating fancy cut white diamonds. The
Category

21st Century and Contemporary American Renaissance Pendant Necklaces

Materials

Alexandrite, Diamond, 18k Gold, Yellow Gold

Mark Henry 0.54 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, White Gold, 18k Gold

Mark Henry 0.78 Heart Shape Carat Natural Brazilian Alexandrite and Diamond Ring
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Alexandrite, Diamond, 18k Gold, Yellow Gold

Mark Henry 1.74 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
This one of a kind marvel is a one of one in existence. Alexandrite at sizes greater 1 carat are
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold, Yellow Gold

Mark Henry Gold Coin Brazilian Paraiba Necklace
By Mark Henry
Located in New York, NY
A magnificent and exceedingly rare assortment of mixed shaped Brazilian Paraiba's are the focal point of this designer necklace. Each Paraiba rests within a thin bezel frame that is ...
Category

2010s North American Byzantine Pendant Necklaces

Materials

Alexandrite, Diamond, Tourmaline, Paraiba, Gold

Mark Henry 1.95 Carat Rubellite Tourmaline and Diamond Necklace, 18 Karat
By Mark Henry
Located in New York, NY
fine jewelry staple. The plain gold portion features a brushed finish that is enhanced by a halo of
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Alexandrite, Diamond, Rubelite, Tourmaline, 18k Gold, Yellow Gold

Alexandrite and Diamond Fringe Bezel Necklace, 18 Karat Yellow Gold
By Mark Henry
Located in New York, NY
showcases an assortment of gem quality alexandrites and twinkling white diamonds each set with a bezel frame
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, Alexandrite, 18k Gold, Yellow Gold

Mark Henry 3.95 Carat Natural Brazilian Alexandrite and Diamond Necklace, 18kt
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Alexandrite, Diamond, 18k Gold

Mark Henry Natural Brazilian Alexandrite, Moonstone and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Alexandrite, Diamond, Moonstone, 18k Gold

Mark Henry Natural Brazilian Alexandrite, Moonstone and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Alexandrite, Diamond, Moonstone, 18k Gold

Mark Henry Natural Brazilian Alexandrite, Moonstone and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Alexandrite, Diamond, Moonstone, 18k Gold

Certified Mark Henry 1.74 Carat Natural Brazilian Alexandrite and Diamond Ring
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 1.78 Carat Natural Brazilian Alexandrite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
An alexandrite is prized for its natural ability to shift colors from a vibrant bluish-green under
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

Mark Henry 2.39 Carat Rubellite and Diamond Ring, 18 Karat
By Mark Henry
Located in New York, NY
and southern points of the center stone is an assortment of pavé set alexandrite, rhodolite and white
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Diamond, Rubelite, Tourmaline, Alexandrite, Garnet, 18k Gold, Yellow Gold

Mark Henry Alexandrite Diamond Gold Pendant Necklace
By Mark Henry
Located in Lambertville, NJ
New 18k yellow gold pendant necklace by Mark Henry. Set with a 4.35ctw of natural alexandrite and
Category

21st Century and Contemporary More Necklaces

Materials

Alexandrite, Diamond, Gold

Mark Henry Alexandrite Rose Gold Hoop Earrings
By Mark Henry
Located in Lambertville, NJ
New 18k Rose gold hoop earrings by Mark Henry. Set with 0.47ctw in Natural Alexandrite. Earrings
Category

21st Century and Contemporary More Earrings

Materials

Alexandrite, Rose Gold

Mark Henry 0.83 Carat Alexandrite Diamond Gold Ring
By Mark Henry
Located in Lambertville, NJ
New 18k white gold ring by Mark Henry. Set with a 0.83ct natural alexandrite and 0.30ctw in VS-Si/H
Category

21st Century and Contemporary Band Rings

Materials

Alexandrite, Diamond, Gold

Mark Henry 1.18 Carat Alexandrite Diamond Gold Band Ring
By Mark Henry
Located in Lambertville, NJ
New 18k white gold ring by Mark Henry. Set with 1.18ct natural alexandrite, 0.43ctw in VS-Si/H
Category

21st Century and Contemporary More Rings

Materials

Alexandrite, Diamond, Gold

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Mark Henry Alexandrite Jewelry For Sale on 1stDibs

You are likely to find exactly the piece of mark henry alexandrite jewelry you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. See these pages for an oval cut iteration of this accessory, while there are also round cut cut and cushion cut cut versions available here, too. When shopping for an item from our selection of mark henry alexandrite jewelry, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Mark Henry Alexandrite Jewelry?

Prices for a piece of mark henry alexandrite jewelry can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,900 and can go as high as $295,000, while this accessory, on average, fetches $14,500.

Mark Henry for sale on 1stDibs

Mark Henry is a contemporary jewelry brand that not only specializes in luxurious handcrafted diamond confections but is also known to jewelry lovers for its rings, necklaces and earrings that feature natural alexandrites, one of the world's most breathtaking and rarest gemstones — and one that can change color when exposed to different light sources.

Founded by American entrepreneur Mois Medine, this New York City company's name combines the first names of Medine’s sons. The company is revered for cocktail rings, pendants and drop earrings that often see an integration of floral motifs and other themes that are drawn from nature. The adornments are primarily made with rare and exotic gems, and Mark Henry has positioned itself over time as a premiere destination for exceptional alexandrite jewelry. 

Discovered in Russia during the 1800s, alexandrite is named for Alexander II, Emperor of Russia during the 19th century. The country's mines were emptied of alexandrite by the late 1800s, and so the gem is now mined Sri Lanka, East Africa and Brazil. The alexandrite in Mark Henry jewelry is sourced from an ethically operated, family-owned mine in the southeastern region of Brazil.

Often described as “emerald by day, ruby by night,” alexandrite changes color from a bluish-green in daylight to a purplish-red in incandescent light. The gem could be found in the Victorian jewelry of England, and famed Tiffany & Co. mineralogist George Frederick Kunz also created alexandrite jewelry into the early 20th century. 

Mark Henry jewelry also features paraiba tourmalines, a scarce and highly valuable gemstone originally discovered in 1989. The color of the stone is a hypnotizing blue and it comes from deep in the copper-rich mountains of Paraiba, Brazil

On 1stDibs, find Mark Henry rings, necklaces, earrings and more. 

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.