Antique Platinum Hallmarks
to
51
1,250
711
1,886
1,886
1,000
199
195
77
54
22
8
3
3
3
2
2
1
11
10
2
2
2
Sort By
Antique Art Deco Platinum Hallmarked Old Mine Diamond Three Stone Ring
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum Hallmarked Old Mine Diamond Three Stone Ring. This gorgeous
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 6
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.3 grams
Finger to Top of
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
Art Deco Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 6
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.77 grams
Finger to Top of
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
Art Deco Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 10.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.0 grams
Finger to Top of
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
1920s Engraved Platinum Wedding Band
Located in Hicksville, NY
Year: 1920s
Item Details:
Ring Size: 4.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
Platinum Art Deco Wedding Band with Engravings
Located in Hicksville, NY
Year: 1920s
Item Details:
Ring Size: 7
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.0
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
1920 Art Deco Platinum Engraved Wedding Band
Located in Hicksville, NY
Year: 1920
Item Details:
Ring Size: 5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.6
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Platinum
5.25 Carat Diamond Platinum Brooch
Located in Hicksville, NY
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 15 grams
Diamond Details:
Weight: 5.25 carat
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
Yellow Gold and Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 7
Metal Type: 18 karat Yellow Gold & Platinum [Hallmarked, and Tested]
Weight: 4 grams
Category
Early 1900s Unknown Edwardian Antique Platinum Hallmarks
Materials
14k Gold, Yellow Gold, Platinum
Platinum Art Deco Diamond Eternity Band with Engraving, circa 1925
Located in Hicksville, NY
Item Details:
Ring Size:5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.1 grams
Band
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
1927 Engraved Date Platinum Art Deco Wedding Band
Located in Hicksville, NY
Year: 1927 (Engraved on inner shank)
Item Details:
Ring Size: 6.25
Metal Type: Platinum
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
Art Deco Platinum Double Row Wedding Band
Located in Hicksville, NY
Year: 1920s
Item Details:
Ring Size: 5 (Sizable)
Metal Type: Platinum [Hallmarked, and Tested
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
Circa 1920s Platinum Diamond Wedding Band
Located in Hicksville, NY
Year: 1920s
Item Details:
Ring Size: 6 (Sizable)
Metal Type: Platinum [Hallmarked, and Tested
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.96 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.2 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.50 Carat Diamond Platinum Ring
Located in Hicksville, NY
Ring Size: 5.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4.6 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
1.42 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
Estate Antique Natural Saltwater Pearls GIA report Platinum Sapphire & Diamond
Located in Hicksville, NY
Item Details:
Year: 1900s
GIA Report Number: 2231448022
Metal Type: Platinum [Hallmarked, and Tested
Category
Early 1900s Antique Platinum Hallmarks
Materials
Platinum
1.53 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4 grams
Center Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
1.00 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5.25
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.70 Carat Diamond Platinum Brooch
Located in Hicksville, NY
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 9 grams
Center Diamond Details:
Weight
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.88 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3 grams
Center Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.25 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
1.42 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4.2 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
1.01 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4 grams
Center Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
.90 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: grams
Center Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.40 Carat Total Weight Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.8 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.90 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details:
Ring Size: 4
Metal Type: 900 PLATINUM [Hallmarked & Tested]
Weight: 3 grams
Center
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
Circa 1920s Platinum Diamond Swirl Ring Band Size 5
Located in Hicksville, NY
Item Details:
Year: 1970s
Ring Size: 5 (Sizable)
Metal Type: Platinum [Hallmarked, and Tested
Category
1920s Antique Platinum Hallmarks
Materials
Diamond, Platinum
Platinum Edwardian Openwork Filigree Old European Diamond Ring
Located in Hicksville, NY
Year: 1920s
Item Details:
Ring Size: 5.75 (Sizable)
Metal Type: Platinum [Hallmarked, and Tested
Category
1920s Edwardian Antique Platinum Hallmarks
Materials
Diamond, Platinum
Circa 1920s Art Deco Platinum Baguette Diamond Band
Located in Hicksville, NY
Year: 1920s
Item Details:
Ring Size: 7
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.7
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1.00 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 11
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4.0 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.50 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details:
Ring Size: 3.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3 grams
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
Platinum Edwardian 1.25ct Old Mine Diamond Engagement Ring
Located in Hicksville, NY
Year: 1900s
Item Details:
Ring Size: 6.5 (Sizable)
Metal Type: Platinum [Hallmarked, and Tested
Category
Early 1900s Edwardian Antique Platinum Hallmarks
Materials
Diamond, Platinum
.75 Carat Total Weight Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 8.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.9 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
.25 Carat Total Weight Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.9grams
Diamond Details:
Weight
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
.65 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.3 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.50 Carat Total Weight Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 4.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.40 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 4.25
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.8 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.25
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.65 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.51 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.5 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1.35 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 7
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.5grams
Center Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.70 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.25
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.0 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1.13 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.0 grams
Center Diamond
Category
1910s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.55 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.0 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1920 Art Deco Platinum Diamond Engagement Ring
Located in Hicksville, NY
Year: 1920
Item Details:
Ring Size: 6.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4.2
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.35 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.0 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.94 Carat Edwardian Diamond Platinum Engagement Ring
Located in Hicksville, NY
Item Details:
Ring Size: 6.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3 grams
Center
Category
1910s Unknown Edwardian Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.20 Carat Total Weight Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 5.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.1 grams
Hallmark: FIDELITY
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Platinum
.40 Carat Total Weight Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 6.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
1.15 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.75
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 3.13 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.40 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.16 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1920s Art Deco Platinum Sapphire and Diamond Brooch
Located in Hicksville, NY
Item Details:
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4.4 grams
Diamond Details
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Diamond, Sapphire, Platinum
1900s Platinum Ribbon Bow Old European Diamond Brooch
Located in Hicksville, NY
Item Details:
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 9.6 grams
Diamond Details
Category
Early 1900s Classical Roman Antique Platinum Hallmarks
Materials
Diamond, Platinum
.50 Carat Total Weight Diamond Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 6.90
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.3 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
White Diamond, Platinum
.75 Carat Art Deco Diamond Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 6.25
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.0 grams
Diamond Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1.00 Carat Art Deco Diamond Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 5.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.1 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
1.00 Carat Art Deco Diamond Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 5.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 2.1 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
.90 Carat Total Weight Sapphire Platinum Wedding Band
Located in Hicksville, NY
Ring Size: 6.5
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4 grams
Sapphire Details
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Sapphire, Platinum
Circa 1920s Art Deco Platinum 1.75ct Old Mine Diamond and French Cut Sapphire
Located in Hicksville, NY
Item Details:
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 6.5 grams
Diamond Details
Category
1920s Art Deco Antique Platinum Hallmarks
Materials
Diamond, Sapphire, Platinum
.50 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 9
Metal Type: Platinum [Hallmarked, and Tested]
Weight: 4.33 grams
Center Diamond
Category
1920s Unknown Art Deco Antique Platinum Hallmarks
Materials
Diamond, Platinum
- 1
- ...
Get Updated with New Arrivals
Save "Antique Platinum Hallmarks", and we’ll notify you when there are new listings in this category.
Antique Platinum Hallmarks For Sale on 1stDibs
Find an expansive variety of antique platinum hallmarks available on 1stDibs. These distinct designs — crafted with great care and often made from platinum, gold and 18k gold — can elevate any look. Our collection is diverse and broad-ranging, and pieces in stock date back to the 18th Century while others were produced as recently as the 20th Century. Our collection of antique platinum hallmarks includes designs that are universally popular, but Edwardian and Art Deco styles, specifically, are sought with frequency. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Cartier, Tiffany & Co. and Hamilton are consistently popular. Today, if you’re looking for old european cut antique platinum hallmarks and are unable to find the perfect match, our selection also includes round cut and old mine cut alternatives. There aren’t many items for men in our collection of antique platinum hallmarks, as most of the options available are for women.
How Much are Antique Platinum Hallmarks?
Prices for antique platinum hallmarks can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $556 and can go as high as $206,353, while antique platinum hallmarks, on average, fetch $5,500.
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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.
Questions About Antique Platinum Hallmarks
- Do antique rings have hallmarks?1 Answer1stDibs ExpertNovember 2, 2023Yes, some antique rings have hallmarks. However, some do not. Before 1950, jewelry makers didn't add hallmarks to their pieces, but some did to indicate who produced the jewelry and/or tell the buyer what type of metals they contained. Shop a large collection of antique rings on 1stDibs.