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Vintage Tiffany & Co. Diamond Sapphire Irid Platinum Cocktail Ring
By Tiffany & Co.
Located in Holland, PA
: 5 (resize available) Weight: 3.4 grams Stamped Hallmarks: Tiffany & Co Irid.Plat *Free Shipping
Category

Vintage 1960s American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Tiffany & Co. Platinum Band Ring
By Tiffany & Co.
Located in Philadelphia, PA
/ 100% IRID PLAT / X 432 Measurements: Width: ca. 3 mm Diameter: ca. 19 mm Weight: ca. 4.4 grams Ring
Category

20th Century Unknown Modern Band Rings

Materials

Platinum

Tiffany & Co Art Deco Platinum Diamond Bracelet
By Tiffany & Co.
Located in New York, NY
" long and 9.5mm wide. Marked: Tiffany & Co, Irid,. Plat. Weight - 17.6 grams.
Category

Vintage 1920s American Art Deco More Bracelets

Materials

Diamond, Platinum

Tiffany & Co. Platinum Diamond Emerald Brooch Pin
By Tiffany & Co.
Located in New York, NY
- 55mm x 22mm. Weights 16.1 grams. Marked Tiffany & Co Irid Plat.
Category

20th Century Brooches

Materials

Diamond, Emerald, Platinum

Tiffany & Co Burma Ruby Platinum Eternity Band
By Tiffany & Co.
Located in New York, NY
height. Signed on the inside of the band " Tiffany & Co. IRID PLAT. Ring size 6.75 can not be sized.
Category

Vintage 1970s American Wedding Rings

Materials

Ruby, Platinum

TIFFANY & CO. Circular Diamond Pin in Platinum
By Tiffany & Co.
Located in Houston, TX
total 4.10 carats, E-F color, VVS2-VS1 clarity. Signed: Tiffany & Co Irid Plat
Category

Vintage 1980s American Brooches

Materials

Diamond, Platinum

Vintage Tiffany & Co. Platinum Emerald Diamond Ring
By Tiffany & Co.
Located in Beverly Hills, CA
. The ring is stamped Tiffany & Co; 'IRID,' and 'Plat.'
Category

Vintage 1960s Cluster Rings

Materials

Diamond, Emerald, Platinum

Tiffany & Co. Elsa Peretti Platinum Diamond Necklace
By Tiffany & Co.
Located in Chicago, IL
luxurious platinum, and marked "Tiffany & Co. IRID Plat Peretti," ensuring its authenticity and superior
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Tiffany & Co. Art Deco Sapphire Line Bracelet
By Tiffany & Co.
Located in London, GB
Latched Tab Marked: 'TIFFANY&Co.' 'IRID PLAT' Period: Circa. 1940 Box: The Vintage Jeweller Gift Box
Category

Vintage 1940s Art Deco Tennis Bracelets

Materials

Sapphire, Platinum

Scintillating Vintage Platinum Tiffany & Co. Diamond Pyramid Earrings
By Tiffany & Co.
Located in Palm Beach, FL
pyramid effect. On the back appear the stamps Tiffany & Co. and IRID PLAT. Gross weight 22 grams.
Category

Late 20th Century American Modern Clip-on Earrings

Materials

Diamond, Platinum

Tiffany & Co. Diamond and Sapphire Platinum Art Deco Bracelet
By Tiffany & Co.
Located in Chevy Chase, MD
of 4.80cts. Signed: Tiffany & Co. Hallmark: IRID PLAT Length: 7.00 inches
Category

Mid-20th Century Link Bracelets

Materials

Diamond, Sapphire, Platinum

Vintage Tiffany & Co. Platinum Natural Diamond Ribbon Bow Pin Brooch
By Tiffany & Co.
Located in Baltimore, MD
& Co. IRID PLAT
Category

Mid-20th Century Retro Brooches

Materials

Diamond, Platinum

Tiffany & Co. Certified Sapphire Burma "No Heat Royal Blue" Ring
By Tiffany & Co.
Located in New York, NY
June 2024 Signed: TIFFANY & CO., Irid. Plat., stamped with Mascaron French import mark.
Category

21st Century and Contemporary French Artist Solitaire Rings

Materials

Sapphire, Platinum

Tiffany & Co. Diamond Platinum Columbia Business School Logo Brooch
By Tiffany & Co.
Located in New York City, NY
ensemble. Hallmarks: Tiffany & Co., Irid Plat.
Category

Late 20th Century Brooches

Materials

Diamond, Platinum

Vintage Tiffany & Co Seagull Diamond Brooch Pin Small Platinum Signed Jewelry
By Tiffany & Co.
Located in Torrance, CA
is marked "Tiffany & Co." and "IRID PLAT"
Category

Late 20th Century American Modern Brooches

Materials

Diamond, White Diamond, Platinum

Tiffany & Co Vintage Diamond Full Eternity Ring Platinum, Circa 1950
By Tiffany & Co.
Located in London, GB
compliment an engagement ring beautifully. Signed 'TIFFANY & CO' IRID PLAT and with a personalised engraving
Category

Vintage 1950s American Retro Wedding Rings

Materials

Diamond, Platinum

Tiffany & Co. 3.60 Carat Colombian Emerald Diamond Platinum Cocktail Ring
By Tiffany & Co.
Located in Stamford, CT
Size 6.75 and sizable Platinum 4.8 grams Tested: Platinum Stamped: Irid Plat Hallmark: Tiffany Width at
Category

Early 20th Century Fashion Rings

Materials

Diamond, Emerald, Platinum

TIFFANY & CO Retro Platinum Emerald Cut Diamond Engagement Ring 3.03ct
By Tiffany & Co.
Located in Narberth, PA
fuse at the back. Stamped inside each band ring is "IRID. PLAT" and "TIFFANY&CO". The ring was
Category

Mid-20th Century American Retro Engagement Rings

Materials

Diamond, Platinum

Tiffany & Co. Donald Claflin Flexible Diamond Platinum Eternity Band Ring
By Tiffany & Co.
Located in Simpsonville, SC
jewelers. Original retail price in 1971 - $3575. Size 5.5 US. Hallmarks: Tiffany & Co., Irid Plat. (C
Category

Late 20th Century Band Rings

Materials

Diamond, White Diamond, Platinum

Vintage Tiffany & Co. Oval Cut Ruby and Pear Diamond Halo Ring in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
: 1.9 mm Ornament Dimensions: 13.4 mm x 12.4 mm Stamped: Tiffany & Co. IRID PLAT Estate Condition: Very
Category

Late 20th Century Contemporary Cocktail Rings

Materials

Ruby, Diamond, Yellow Gold, 18k Gold, Gold, Platinum

TIFFANY & CO. 1930 Art Deco Eternity ring In Platinum With 1.82 Ctw In Sapphires
By Tiffany & Co.
Located in Miami, FL
iridium and signed, "TIFFANY & CO. IRID-PLAT". Collateral: This ring is accompanied by a
Category

Vintage 1930s American Art Deco Band Rings

Materials

Sapphire, Blue Sapphire, Platinum

Tiffany & Co AGL Certified 3.00ct Sapphire 1.20ct Diamond Engagement Ring
Located in New York, NY
top of the ring measures 15mm by 13mm. The ring is signed TIFFANY & Co IRID PLAT and weighs 5.4 grams
Category

20th Century Engagement Rings

Materials

Sapphire, Platinum

Tiffany & Co GIA Certified 1.20ct Center Diamond 2.30ct Side Diamond Pin
Located in New York, NY
TIFFANY&Co IRID PLAT. Inventory #18187BNBS
Category

20th Century Brooches

Materials

Diamond, Platinum

TIFFANY & Co Vintage sapphire earrings 10+ct
By Tiffany & Co.
Located in Glasgow, GB
10.5-11.O carats, signed Tiffany & Co., stamped IRID PLAT and 14K, 1.7cm, 8.8g.
Category

Vintage 1950s Art Deco Clip-on Earrings

Materials

Sapphire, 14k Gold, White Gold

Tiffany Art Deco Platinum and Diamond Brooch c1920s
By Tiffany & Co.
Located in New York, NY
jewelry. Signed on the back: "Tiffany & Co, Irid Plat"
Category

Vintage 1920s American Art Deco Brooches

Materials

Diamond, Platinum

Tiffany & Co. Angela Cummings Diamond Gold Wing Pins
By Tiffany & Co.
Located in New York, NY
accent mounted in platinum for contrast, signed TIFFANY & CO CUMMINGS 18K IRID PLAT design copyrighted
Category

Vintage 1980s American Brooches

Materials

Diamond, 18k Gold, Platinum

Art Deco Tiffany & Co. Diamond Platinum Brooch Pin Pendant
By Tiffany & Co.
Located in Shaker Heights, OH
." and "Irid Plat" on pin back; overall weight 11.3 gm. Offered with an antique Tiffany & Co. New York
Category

Vintage 1930s Art Deco Brooches

Materials

White Diamond, Platinum

Tiffany & Co. 1.05 Carat E/VS1 Round Brilliant and Baguette Diamond Plat Ring
By Tiffany & Co.
Located in Chevy Chase, MD
color, VS clarity. The inside shank of the ring is stamped "Tiffany & Co", "IRID PLAT". Offered by
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Tiffany & Co. 1985 Paloma Picasso Graffiti Cuff 18Kt Gold Plat 3.08 Cts Diamonds
By Paloma Picasso for Tiffany & Co.
Located in Miami, FL
assay mark and signed in full, "TIFFANY & CO. 1985 © .750 IRID PLAT PALOMA PICASSO". Paloma Picasso was
Category

Vintage 1980s American Modern Cuff Bracelets

Materials

Diamond, White Diamond, Pearl, Gold, 18k Gold, Yellow Gold, Platinum

Tiffany & Co. Diamond Platinum Band Ring
By Tiffany & Co.
Located in New York City, NY
: Tiffany & Co., Irid Plat.
Category

Late 20th Century Band Rings

Materials

Diamond, Platinum

TIFFANY & CO. Estate Diamond &Platinum Bracelet
By Tiffany & Co.
Located in New York City, NY
. Hallmarks: Tiffany & Co., Irid Plat.
Category

Vintage 1970s American Link Bracelets

Materials

Diamond, Platinum

Tiffany & Co. Platinum Wedding Band Ring
By Tiffany & Co.
Located in Philadelphia, PA
Tiffany & Co. Stamped 100 Irid - 900 Plat. for Platinum-Iridium Ring Size: 4 1/2 & sizable Top measures
Category

Late 20th Century Contemporary Wedding Rings

Materials

Platinum

Tiffany & Co. Sapphire and Diamond Ring
By Tiffany & Co.
Located in Litchfield, CT
sapphire and .72 carats of G color VS clarity diamonds HALLMARKS: TIFFANY & CO and IRID.PLAT STOCK
Category

Vintage 1960s American Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Tiffany & Co. Sapphire, Diamond and Platinum Band
By Tiffany & Co.
Located in New York City, NY
., Irid. Plat.
Category

Mid-20th Century Band Rings

Materials

Diamond, Blue Sapphire, Platinum

Platinum Ring with Diamonds by Tiffany & Co.
By Tiffany & Co.
Located in New York, NY
, "Tiffany & Co" Irid/plat. Size 9-3/4.
Category

Vintage 1970s Wedding Rings

Materials

Diamond, 18k Gold

Tiffany & Co. Diamond and Sapphire Platinum Bracelet
By Tiffany & Co.
Located in Chevy Chase, MD
links without any gemstones have a floral design. Signature: Tiffany & Co Hallmark: IRID Plat Length
Category

Mid-20th Century Art Deco Link Bracelets

Materials

Diamond, Sapphire, Platinum

Vintage Tiffany & Co. Diamond Bracelet in Platinum
By Tiffany & Co.
Located in New York, NY
, Irid, plat. Equipped with invisible box clasp with security lock.
Category

Mid-20th Century American Artist Link Bracelets

Materials

Platinum

Tiffany & Co. Diamond, Sapphire and Platinum Earrings
By Tiffany & Co.
Located in New York, NY
shapes. Circa 1970's. Signed, “Tiffany & Co Irid/ plat”. (MG #16192)
Category

Vintage 1970s Unknown Clip-on Earrings

Materials

Diamond, Sapphire, Platinum

Tiffany & Co Diamond Gold and Platinum Snowflake Earrings
By Tiffany & Co.
Located in New York, NY
G/VS diamonds. Earrings measure approx. 1" x 1". Hallmarked 18k, Irid. Plat, Tiffany & Co. Weight
Category

Mid-20th Century American Clip-on Earrings

Materials

Diamond, Gold, Platinum

Tiffany & Co. Platinum Sapphire Diamond Band
By Tiffany & Co.
Located in Lexington, KY
the bright white of the diamonds. The ring is marked Tiffany&Co and IRID PLAT. It is currently a size
Category

Vintage 1950s American Band Rings

Materials

Diamond, Sapphire, Platinum

Tiffany & Co. Diamond-set Platinum Heart Brooch
By Tiffany & Co.
Located in Litchfield, CT
: Tiffany & Co. and IRID PLAT. STOCK NUMBER: 24341 Jewelry acquired from this dealer must delight you
Category

1990s American Brooches

Materials

Diamond, Platinum

Tiffany & Co. Flexible Diamond Platinum Eternity Band Ring
By Tiffany & Co.
Located in New York City, NY
beautifully intricate flexible design. Size 6. Hallmarks: Tiffany & Co., Irid Plat. (C)
Category

Mid-20th Century American Contemporary Band Rings

Materials

Diamond, Platinum

Tiffany & Co. Diamond Set Swirl Earrings in Platinum
By Tiffany & Co.
Located in Litchfield, CT
. and IRID Plat STOCK NUMBER: 18041 Jewelry acquired from LAWRENCE JEFFREY must delight you
Category

Vintage 1930s American Clip-on Earrings

Materials

Diamond, 14k Gold, Platinum

Tiffany & Co. Art Deco Diamond and Platinum Bracelet
By Tiffany & Co.
Located in New York, NY
John Loring, Harry N. Abrams, 1997, page 95, 101 (similar). Signed, “Tiffany & Co” “Irid Plat
Category

Vintage 1930s American Art Deco More Bracelets

Materials

White Diamond, Platinum

Vintage Tiffany & Co. Platinum Wedding Band, Circa 1947
By Tiffany & Co.
Located in London, GB
time period from the United States. Signed 'TIFFANY & CO' '10% IRID PLAT' with a personalized
Category

Vintage 1940s American Retro Wedding Rings

Materials

Platinum

Tiffany & Co. Platinum, Black Opal and Diamond Ring
By Tiffany & Co.
Located in New York, NY
intense and rich hues of the opal. Circa 2000. Signed, "Tiffany & Co" irid. plat. Dimensions: Ring size
Category

Early 2000s American Cocktail Rings

Materials

Diamond, Opal, Platinum

Tiffany & Co. Fancy Intense Yellow Diamond Ring in Platinum
By Tiffany & Co.
Located in Houston, TX
white diamonds. The ring is marked "706 Tiffany & Co. 10% Irid Plat" on the inside. The fancy intense
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

Tiffany & Co. 0.79 Carat GIA Diamond Gold Solitaire Ring
By Tiffany & Co.
Located in New York, NY
-prong head atop a 18k yellow gold knife-edge shank. Stamped "18K IRID. PLAT TIFFANY&CO"
Category

20th Century Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold, Platinum

Tiffany & Co. Platinum Diamond and Onyx Tear Drop Earrings
By Tiffany & Co.
Located in Washington Depot, CT
length: 68.8mm Weight: 15.2 g/ 9.7 dwt Hallmark: Tiffany & Co. IRID PLAT Very good condition
Category

20th Century Drop Earrings

Materials

Diamond, Onyx, Platinum

Vintage Tiffany & Co. Platinum Baguette Channel 3mm Band Ring
By Tiffany & Co.
Located in New York, NY
.) Ring Specifications Brand: Tiffany & Co. Style: Vintage Hallmarks: Tiffany & Co. IRID. PLAT Metal
Category

Vintage 1950s American Retro Band Rings

Materials

Diamond, Platinum

Tiffany & Co. 8.0 Carat Diamond Large Swirl Platinum Clip Earrings
By Tiffany & Co.
Located in Boca Raton, FL
are graded F-G color and VS clarity. The dimensional earrings are signed Tiffany & Co. IRID PLAT. The
Category

Late 20th Century Unknown Modern Clip-on Earrings

Materials

White Diamond, Platinum

Tiffany Art Deco Diamond and Platinum Bow Brooch, circa 1930
By Tiffany & Co.
Located in London, GB
, signed Tiffany & Co., stamped irid plat., with an estimated total stone weight of 6.50ct, circa 1930.
Category

Vintage 1930s American Art Deco Brooches

Materials

Diamond, Gold, Platinum

TIFFANY & CO Diamond Set of 3 Seagull Brooch Platinum Pins
By Tiffany & Co.
Located in Holland, PA
: Tiffany & Co IRID PLAT (all three brooches stamped) *Free Shipping within the United States* YOUR
Category

20th Century American Brooches

Materials

Diamond, Platinum

Tiffany & Co. 1925 Diamond Platinum West Point Class Unisex Ring
By Tiffany & Co.
Located in Philadelphia, PA
iconography Fully Signed Tiffany & Co. and stamped 10% Irid Plat Ring Size: 7 1/2 Top measures 11.6 mm
Category

Vintage 1920s Unknown Art Deco Bridal Rings

Materials

Diamond, Platinum

Tiffany & Co. Retro 29.30 Carat Aquamarine Diamond Platinum Statement Ring
By Tiffany & Co.
Located in Philadelphia, PA
shoulders, deeply grooved Fully signed Tiffany & Co. Stamped Irid Plat for platinum-iridium Circa: 1940s
Category

Vintage 1940s Retro Fashion Rings

Materials

Aquamarine, Diamond, White Diamond, Platinum

Tiffany & Co. Art Deco Sapphire Diamond Platinum Eternity Band Ring
By Tiffany & Co.
Located in Litchfield, CT
sapphires and .40 carats total weight G color, SI1 clarity diamonds HALLMARKS: Tiffany & Co. and IRID
Category

Vintage 1920s American Art Deco Band Rings

Materials

Diamond, Sapphire, Platinum

Tiffany & Co. 14.16 Carat Diamond Sapphire Platinum Cluster Link Bracelet
By Tiffany & Co.
Located in Philadelphia, PA
Irid. Plat for platinum-iridium Circa: 1970s Length: 7 inches Width: 1/2 inch Total weight: 27.9
Category

Vintage 1970s Contemporary Link Bracelets

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Tiffany & Co. Art Deco Diamond & Platinum Lorgnette on a Chain
By Tiffany & Co.
Located in Beverly Hills, CA
using this piece. The item is stamped "Tiffany & Co. Irid plat." The lorgnette is hanging on a platinum
Category

Early 20th Century American Art Deco More Necklaces

Tiffany & Co. Legacy Bead Set Diamond Platinum Eternity Wedding Band Ring
By Tiffany & Co.
Located in Stamford, CT
Platinum 3.3 Grams Stamped: Irid Plat Hallmark: Tiffany & Co 2.61mm wide at top 1.99mm high at top 2.61
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Tiffany & Co. Platinum Wedding Band Ring Size 7 w/Box #18915
By Tiffany & Co.
Located in Washington Depot, CT
meticulously detailed platinum. Width: 2 mm. Hallmark: 1096 IRID PLAT TIFFANY & CO. Comes with original
Category

20th Century Band Rings

Materials

Platinum

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Tiffany Irid Plat For Sale on 1stDibs

On 1stDibs, you can find the most appropriate tiffany irid plat for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from platinum, gold and 18k gold — can elevate any look. You can easily find a 173 antique edition and 29 modern creations to choose from as well. You’re likely to find the perfect tiffany irid plat among the distinctive items we have available, which includes versions made as long ago as the 19th Century as well as those produced as recently as the 21st Century. Creating a tiffany irid plat has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., Oscar Heyman and Paloma Picasso for Tiffany & Co. are consistently popular. See these pages for a round cut iteration of this accessory, while there are also square cut cut and brilliant cut cut versions available here, too. If you’re browsing our inventory for a tiffany irid plat, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a Tiffany Irid Plat?

Prices for a tiffany irid plat can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $11 and can go as high as $150,000, while this accessory, on average, fetches $10,000.

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.