Art Deco 3.80 Carat Old Mine Diamond Platinum Engagement Ring
Located in Philadelphia, PA
and foliate motif Stamped 10% Irid Plat for iridium platinum Ring Size: 5 3/4 & sizable Top
White Diamond, Platinum
Art Deco Ornate 2.09 Carat Diamond Platinum Floral Engagement Ring
Located in Philadelphia, PA
in total approximately 0.14 carat, eye-clean and white Stamped 900 Plat 100 Irid for platinum
Diamond, White Diamond, Platinum
Tiffany & Co. No Heat Sapphire Diamond Platinum Navette Cluster Ring AGL
By Tiffany & Co.
Located in Philadelphia, PA
& Co. Stamped Irid Plat for platinum-iridium Circa: 1950s Ring Size: 4 1/4 & sizable Measures: 19.3
Diamond, Sapphire, Platinum
1950s Retro 2.03 Carat Diamond Platinum Three-Stone Engagement Ring GIA
Located in Philadelphia, PA
Stamped as handmade and 10% Irid Plat for platinum-iridium Circa 1950's Ring Size: 5 & sizable Top
White Diamond, Platinum
GIA Certified 1.18 Carat Light Purple Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
, approx. total weight .10cts, H, VS2 Size 7 and sizable Platinum Tested: Platinum Stamped: 10% Irid Plat
Sapphire, Diamond, Platinum
J.E. Caldwell Baguette Diamond Platinum Stacking Band Rin, circa 1950
By J.E. Caldwell & Co.
Located in Philadelphia, PA
and signed J.E.C. & Co. for J.E. Caldwell Stamped 10% Irid Plat for platinum-iridium Circa: 1950s
Diamond, White Diamond, Platinum
1930s Art Deco .90 Carat GIA Cert Diamond Platinum Engagement Ring
Located in Litchfield, CT
), .15 carats total weight accent stones, I color and SI2 clarity diamonds HALLMARKS: 10% PLATINUM
White Diamond, Platinum
1950's Mid-Century 1.75 CTW Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
carat; eye-clean and white Completed by knife edge partially down shank Stamped Irid Plat for
Diamond, 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
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
Retro Diamond Wedding Anniversary Band Ring Mined .50ct 1953 Platinum Hartzberg
Located in Dearborn, MI
Size: 5.75 (Sizing Available) Metal: Platinum Stamp: 10% IRID PLAT Weight: 6.1 Measures: 3.1mm off
Diamond, Platinum
Tiffany & Co. Pair of Sapphire Platinum Half Eternity Band Rings, circa 1945
By Tiffany & Co.
Located in Cape May, NJ
: Tiffany & Co Irid.Plat Composition: 95% Platinum 5% Iridium Primary Stone: Step Cut Blue Sapphire
Blue Sapphire, Platinum
Art Deco 1.20 Carat Transitional Cut Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
engraved and polished platinum Stamped 100 IRID-900 PLAT and inscribed with "L.P.H to K.M.M 1930" Ring
Diamond, Platinum
Art Deco Sapphire Engagement Ring Platinum Solitaire 1.00ct Antique Original 193
Located in Dearborn, MI
(Sizing Available) Weight: 3.4 Grams Metal: Platinum Stamp: 10% IRID PLAT Measures: 5.6mm off the
Sapphire, Platinum
Contemporary 1.94 Carat Diamond and Platinum Twist Ring Circa 2000
Located in Jesmond, Newcastle Upon Tyne
the marks for platinum (10%IRID PLAT). This contemporary diamond dress ring is supplied with two
Diamond, Platinum
Art Deco Diamond Engagement Ring .50ct Original 1930-1940 Antique Platinum
Located in Dearborn, MI
: 5 (Sizing Available) Weight: 3.7 Grams Metal: Platinum Stamp: 10% IRID PLAT Measures: 5.7mm off
Diamond, Platinum
Oscar Heyman 1.40 Carat Diamond Sapphire Bypass Style Platinum Cocktail Ring
By Oscar Heyman
Located in Stamford, CT
Oscar Heyman bypass platinum diamond sapphire cocktail ring. Six Sapphires with diamond halos in a
Diamond, Blue Sapphire, Sapphire, Platinum
Jabel Retro 1.18 Carat Old European Diamond Platinum Engagement Ring GIA
By Jabel
Located in Philadelphia, PA
carat total, G/H color with VS clarity Stamped 900 Plat 100 Irid for platinum-iridium Fully signed
Diamond, White Diamond, Platinum
Art Deco Diamond Platinum Engagement Ring Mined .95ct Antique Original 1920s
Located in Dearborn, MI
Ring's Specs Size: 7.25 (Sizing Available) Metal: Platinum Stamp: 10% IRID PLAT Weight: 3.6 Grams
Diamond, Platinum
GIA 2.46 Carat Oval Sapphire Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
.25cts, F, VS2 Size 7 and sizable 4.7 grams Platinum Stamped: Irid Plat Width at top: 8.9mm Height at top
Blue Sapphire, Diamond, Sapphire, Platinum
Art Deco Vintage Platinum Cabochon Ceylon Sapphire and Diamond Ring
Located in New York, NY
Premium Platinum (10% Iridium Alloy) Crafted from marked 10% Irid Plat, this ring boasts the superior
Diamond, Sapphire, Platinum
Edwardian 2.60 Carat Old European Cut Diamond Platinum Quatrefoil Dinner Ring
Located in Philadelphia, PA
% Irid Plat for platinum-iridium Circa 1915 Ring Size: 8 1/2 & sizable Top measures: 19.6 mm and sits
Diamond, White Diamond, Platinum
Cartier GIA Certified 3.09 Carat Oval Sapphire Diamond Platinum Engagement Ring
By Cartier
Located in Stamford, CT
: 9.3mm Height at top: 7mm Width at bottom: 2.3mm 6.0 grams Tested: Platinum Stamped: Irid Plat
Diamond, Sapphire, Platinum
Art Deco Diamond Band Mined .15ct Genuine 1920s C.D Peacock Platinum Ring
Located in Dearborn, MI
) Your Ring's Specs Size: 5.75 (Sizing Upon Visual Approval ONLY) Metal: Platinum Stamp: 5% IRID PLAT
Diamond, Platinum
47.20ct Emerald Cut Amethyst and 2.28ct Diamond Platinum Ring Circa 1950
Located in Jesmond, Newcastle Upon Tyne
platinum (10% IRID PLAT). This stunning platinum amethyst and diamond cocktail ring is supplied with an
Amethyst, Diamond, Platinum
.90 Carat Blue Sapphire Diamond Platinum Art Deco Dangle Drop Earrings
Located in Stamford, CT
cut diamonds, G-H VS-SI approx. .36cts Platinum Stamped: 10% IRID PLAT 5.7 grams Top to bottom
Diamond, Sapphire, Blue Sapphire, Platinum
Art Deco 2.60 Carat Diamond Blue Enamel Platinum Swordfish Brooch
Located in Philadelphia, PA
mottling; very minor loss Completed by a hinged pin stem and closure Stamped Irid Plat for platinum
Diamond, White Diamond, Blue Sapphire, Platinum, Enamel
Art Deco 2.60 Carat Diamond Blue Enamel Platinum Swordfish Brooch
Located in Philadelphia, PA
mottling; very minor loss Completed by a hinged pin stem and closure Stamped Irid Plat for platinum
Diamond, White Diamond, Blue Sapphire, Platinum, Enamel
Art Deco Platinum Old European Cut Diamond Cluster Engagement Ring, circa 1920s
Located in Cape May, NJ
Era: Art Deco Hallmarks: 10%Irid.Plat Composition: Platinum Primary Stone: Old European Cut
Diamond, Platinum
Croton Art Deco Diamond Ladies Watch 900 Platinum Mechanical 2Yr. Wnty 1.34ctw
By Croton
Located in Greensboro, NC
Iridium, 900 Platinum, 10% IRID. PLAT. PAT. No. 1754959 Features: 12 o’ clock marked numerically and
Diamond, Platinum
Tiffany & Co EGL Certified .44 Carat Diamond Art Deco Platinum Engagement Ring
By Tiffany & Co.
Located in Stamford, CT
transitional cut center diamond, set in a platinum filigree and pierced setting with 4 round cut accent
Diamond, Platinum
Art Deco Platinum Hamilton Ladies Diamond Watch 2.60ct Mined Diamonds 1930's
By Hamilton
Located in Dearborn, MI
Colorless) Clarity: VS (No Visible Characteristics) Your Watch's Specs Metal: Platinum Stamp: 10% IRID
Diamond, Platinum
Art Deco Diamond Ring Anniversary Band Mined .20ct Platinum Dinhofer Bros 1930's
Located in Dearborn, MI
Ring's Specs Size: 7.5 (Sizing Available) Metal: Platinum Stamp: 10% IRID PLAT Weight: 2.1 grams
Diamond, Platinum
Art Deco Diamond Wedding Ring Anniversary Band Mined .25ct Platinum 1930's
Located in Dearborn, MI
Genuine Original Antique Art Deco from the 1930's Anniversary Band .25ct Diamond Platinum Wedding
Diamond, Platinum
Art Deco Platinum G.C.& G Old European Cut Diamond Ring, circa 1920s
Located in Cape May, NJ
Era: Art Deco c.1920s Hallmarks: 900 Plat 100 Irid GC&G (New York Platinum Ring Manufacturer
Diamond, Platinum
1950s 13.07 Carat Star Sapphire Ruby Diamond Platinum Floral Cluster Ring
Located in Philadelphia, PA
; G/H color with VS clarity Numbered and stamped Irid Plat for platinum-iridium Circa: 1950s Ring
Diamond, White Diamond, Ruby, Star Sapphire, Platinum
Art Deco Diamond Ring 1/2ct Two Row Single Cuts Original 1947 Antique Platinum
Located in Dearborn, MI
(Sizing Available) Metal: Platinum Stamp: 10% IRID PLAT We strive to provide the most accurate
Diamond, Platinum
Diamond Wedding Band Genuine Antique Deco Dated 4-24-49 Platinum Ring
Located in Dearborn, MI
) Your Ring's Specs Size: 5 (Sizing Available for $100) Metal: Platinum Stamp: 10% IRID PLAT Shank
Diamond, Platinum
Art Deco Ruby Diamond Ring 1.72ct Platinum Antique Original 1920's Vintage
Located in Dearborn, MI
(Sizing Available) Metal: Platinum Stamp: 5% IRID Weight: 2.8 Grams Measurements: 5.3mm off the
Diamond, Ruby, Platinum
Art Deco Ring 1.10ct Sapphire Mined Diamond Original 1930's Antique Platinum
Located in Dearborn, MI
Genuine Original Art Deco Antique from 1930's Sapphire and Diamond Ring 1.10ct Vintage Platinum
Diamond, Sapphire, Platinum
Art Deco Diamond Engagement Ring 1.75ct Old European Platinum Original 1920's
Located in Dearborn, MI
Characteristics) Your Ring's Specs Size: 5.75 (Sizing Available) Metal: Platinum Stamp: 5% IRID PLAT
Diamond, Platinum
Art Deco Diamond Engagement Ring Mined .34ct Old European Platinum Original 1920
Located in Dearborn, MI
(Sizing Available) Metal: Platinum Stamp: 10% IRID PLAT Weight: 1.7 Grams Shank: .7mm Measures
Diamond, Platinum
Art Deco 1.21 Carat Old European Cut Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
% Irid Plat for platinum-iridium Circa: 1930s Ring Size: 7 & sizable Measures: 6.2 mm wide and sits
Diamond, White Diamond, Platinum
Art Deco 1.21 Carat Old European Cut Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
% Irid Plat for platinum-iridium Circa: 1930s Ring Size: 7 & sizable Measures: 6.2 mm wide and sits
Diamond, White Diamond, Platinum
Genuine Antique Deco Diamond Wedding Band .21ct 1930's -1940's Platinum Ring
Located in Dearborn, MI
Available for $100) Metal: Platinum Stamp: 10% IRID PLAT Weight: 3.4 We strive to provide the most
Diamond, Platinum
Art Deco Platinum Old European Cut 3-Stone Diamond Engagement Ring, circa 1920s
Located in Cape May, NJ
Era: Art Deco c.1920's Hallmarks: 900 Plat. 100 Irid. Composition: 90% Platinum 10% Iridium
Diamond, Platinum
1.65 Carat Sapphire and 1.28 Carat Diamond Platinum Earrings by Tiffany & Co.
Located in Jesmond, Newcastle Upon Tyne
reverse of the setting with the maker's mark (Tiffany & Co.) and the platinum fineness mark (IRID PLAT
Diamond, Sapphire, White Gold, Platinum
1950s 4.06 Carat Unheated Burmese Ruby Diamond Platinum Three-Stone Ring AGL
Located in Philadelphia, PA
mark and stamped Irid Plat for platinum-iridium Ring Size: 6 & sizable Measures: 7.7 mm wide and sits
Diamond, White Diamond, Ruby, Platinum
Carnelian and Diamond Cocktail Ring Converted from Deco-Era Platinum Wristwatch
Located in Sherman Oaks, CA
filled in with a platinum bead. Interesting vestiges of this piece's former day job remain -- the
Carnelian, Diamond, White Diamond, Platinum
Platinum Art Deco 1 Carat Centre and Two .45 Carat Diamond Ring, circa 1930s
Located in Cape May, NJ
Era: Art Deco c. 1930’s Hallmarks: IRID Composition: Platinum Primary Stone: Diamond (Old
Diamond, Platinum
Vintage Tiffany & Co Platinum Oval Sapphire and Diamond Halo Ring 1.75 Ct Center
By Tiffany & Co.
Located in New York, NY
. Style: Halo Hallmarks: Tiffany & Co., 1.75 IRID. PLAT Metal: Platinum / Iridium Finger Size: 6.75
Diamond, Sapphire, Platinum
Cartier Sapphire Diamond Ring Platinum Sz 6 Estate Signed Gemstone Jewelry Oval
By Cartier
Located in Torrance, CA
ring is hallmarked "10% IRID PLAT" for platinum and "Cartier" along with the serial number.
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
Art Deco .63ct Diamond Ring GIA I VVS2 Platinum Antique 1930 1940 Original Mined
Located in Dearborn, MI
Genuine Original Antique from 1930's-1940's Art Deco GIA .63ct Mined Diamond Platinum Vintage
Diamond, Platinum
3.85 Carat Round Cut Blue Zircon Ring with Diamond Accents in Polished Platinum
Located in Scottsdale, AZ
value. Metal: Platinum (10% Irid) Gemstones: Blue Zircon and Diamonds Zircon Count: 1 Zircon Total
Diamond, Zircon, Blue Zircon, Platinum
60s Tiffany Co GIA No Heat Burma Ruby Diamond Ring Platinum Gemstone Engagement
By Tiffany & Co.
Located in Torrance, CA
& Hallmark: 900 platinum. The ring is hallmarked "IRID PLAT" for platinum and "Tiffany & Co"
Diamond, White Diamond, Ruby, Platinum
ART DECO 1930 Bracelet In Platinum With 8.68 Ctw In Diamonds And Sapphires
Located in Miami, FL
of the platinum, "PLAT 10% IRID". Collateral: This bracelet is accompanied by a presentation jewelry
Diamond, Sapphire, White Diamond, Blue Sapphire, Platinum
Art Deco 1930 American Ring In Platinum With 28.13 Cts In Sapphire And Diamonds
Located in Miami, FL
: Stamped with marks for the assay of the platinum, "10% IRID PLAT". Collateral: It is accompanied by a
Diamond, White Diamond, Sapphire, Star Sapphire, Platinum
EGL Certified 1.52 Carat Diamond Engagement Ring
Located in Stamford, CT
.06cts, H, VS Size 5.75 and sizable Platinum Tested: Platinum Stamped: 10% Irid Plat Width at top: 7.69mm
Diamond, Platinum
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.
Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.
No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.
Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.
Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. 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.
The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry.
The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.
Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.
Ancient Egyptians referred to the vibrant stone as the “gem of the sun.”
There are many ways to showcase a diamond, from traditional prongs to a smooth, streamlined bezel. Here’s everything you need to consider.
The vintage bombé ring is bursting with color and timeless style.
Zircon is a magnificent and underrated natural gemstone that has been worn and adored for centuries.
Givers of fine gems enjoy surprise more than receivers, and women more than men. Find out what else our survey of 3,000 Americans revealed.
If diamonds don’t seem right, what about a magnificent sapphire, ruby or emerald?
Accounting for just 1 percent of all diamonds, these marvels of nature are exceedingly rare and gorgeously complex.
Learn about these antique jewelry styles, then choose a design that speaks to you.