Art Deco Platinum Old European Cut Diamond Engagement Ring
Located in Cape May, NJ
ring is hallmarked "PLATINUM 10% IRID". The center diamond is an approximately 1.26 carat, M/N color
Diamond, Platinum
Edwardian 1.45 Carat Diamond Platinum Three-Stone Ring
Located in Philadelphia, PA
shoulders Maker's mark and stamped Irid Plat for Platinum Ring Size: 4 3/4 & sizable Top measures: 10.2
White Diamond, Platinum
Emerald Diamond Pierced Engraved Art Deco Platinum Ring
Located in Stamford, CT
weight .20cts 4 French cut baguette emeralds. Size 5 ½ and sizable Stamped: 10% irid Plat Platinum 3.5
Diamond, Emerald, Platinum
Art Deco Anniversary Wedding Eternity Band Flowers Platinum Original 1927
Located in Dearborn, MI
: Platinum Stamp: 100 IRID 900 PLAT We strive to provide the most accurate descriptions possible. Please
Platinum
1940 Retro 1.35 Carat Asscher Diamond Platinum Engagement Ring
Located in Philadelphia, PA
ridged motif on corners Circa 1940 Stamped as 10% Irid Plat for platinum-iridium Ring Size: 5 1/4 and
White Diamond, Platinum
1950s Retro 1.13 Carat Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
approximately 0.16 carat total, F-G color and VS clarity Marked 10 Irid Plat for platinum Circa 1950's Ring
Diamond, Platinum
1.43 Carat Two Round Diamond Bypass Platinum Engagement Ring
Located in Stamford, CT
Vintage 1940 -1950 Platinum diamond bypass style engagement ring. Channel set Baguette Diamonds and
Diamond, Platinum
Sold|$5,250
.86 Carat E VS2 Engagement Ring Platinum GIA
Located in Litchfield, CT
Circa 1950s, Platinum, American. This elegant fifties platinum engagement ring is set with a
White Diamond, Platinum
1950s 1.95 Carat Diamond and Platinum Trilogy Ring
Located in Jesmond, Newcastle Upon Tyne
mark for platinum (irid plat). This vintage 1950s three stone ring is supplied with three independent
Diamond, Platinum
1.57 Carat Alexandrite Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
, VS Platinum Tested: Platinum Stamped: 10% Irid Plat Width at top: 7.1mm Height at top: 7.0mm Width at
Alexandrite, Diamond, Platinum
1.98 Carat Sapphire Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
sizable Platinum 5.4 grams Tested: Platinum Stamped: 10% Irid Plat Width at top: 8.13mm Height at top
Diamond, Sapphire, Platinum
Traub Art Deco 0.85 Carat Diamond Platinum Engagement Ring
Located in Philadelphia, PA
foliate shoulders (worn) Fully signed Traub Orange Blossom with maker's mark Stamped 900 plat 100 irid
Diamond, Platinum
GIA Certified Pear Shape Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
.12cts, G, VS Platinum Tested: Platinum Stamped: 10% Irid Pl 3.0 grams Width at top: 9.2mm Height at top
Diamond, Platinum
Art Deco Old European Cut Diamond Platinum Ring Circa 1920
Located in Stamford, CT
Tested: Platinum Stamped: 10% irid plat 5.6 grams Width at top: 16.43mm Height at top: 4.83mm Width at
Diamond, Platinum
Art Deco 0.73 Carat Diamond Platinum Engagement Ring
Located in Philadelphia, PA
Stamped 10% Irid Plat for platinum-iridium Circa: Late 1930s Ring Size: 6 1/2 & sizable Measures: 6.4
Diamond, White Diamond, Platinum
Enchanting Edwardian 0.30 Carat Diamond Platinum Trellis Band Ring
Located in Philadelphia, PA
knife edged shank With maker's mark and stamped 10% irid plat for platinum-iridium Ring Size: 6 1/2
White Diamond, Diamond, Platinum
Art Deco Single Cut Diamond Platinum Stackable Band Ring
Located in Philadelphia, PA
knife edged shank With maker's mark and stamped 10% Irid Plat for iridium platinum Ring Size: 7
White Diamond, Platinum
Petri Natural Light Blue Sapphire and Diamond Platinum Ring
Located in Stamford, CT
.10cts, G, VS Size 6 and sizable Stamped: 10% irid Plat Hallmark: Petri Tested: Platinum Width at
Diamond, Sapphire, Platinum
GIA Certified 26.49 Carat Aquamarine Diamond Platinum Pendant Necklace
Located in Stamford, CT
, H VA approx. .5cts Platinum Stamped: IRID PLAT 11.8 grams Top to bottom: 47.6mm or 1 7/8 Inch Width
Aquamarine, Diamond, Platinum
Art Deco Platinum Old European Cut Diamond Engagement Ring
Located in Cape May, NJ
Era: Art Deco Hallmark: 10% Irid Plat. Composition: Platinum Primary Stone: Diamond Stone
Diamond, Platinum
Vintage Old European Cut Diamond Engagement Ring Made in Platinum
Located in Webster, NY
: VS2 Total Diamond Carat Weight: Approximately 1.58CTW Metal: Platinum Stamped: "10% IRID PLAT" Ring
Diamond, Platinum
Art Deco 0.35 Carat Diamond Platinum Channel Anniversary Band Ring
Located in Philadelphia, PA
Stamped Irid Plat for platinum with inner inscription Circa 1930s Ring Size: 6 & sizable Measures: 3.4
Diamond, Platinum
Art Deco Old European Diamond 3 Stone Pinched Platinum Engagement Ring
Located in Stamford, CT
weight .10cts, G, VS Platinum Stamped: 10% irid Plat Tested: Platinum 3.4 grams Width at top: 5.8mm
Diamond, Platinum
GIA Certified 1.89 Carat Purple Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
, approx. total weight .75cts, I – J, SI1 Platinum Tested: Platinum Stamped: 10% Irid Plat 4.5 grams Width
Diamond, Sapphire, Platinum
Art Deco 1930 1.22 Carat Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
with single cut diamonds weighing approximately 0.38 carat, H color and SI clarity Stamped 5% irid
Diamond, Platinum
Vintage 3.80 Carat Diamond and Platinum Twist Ring
Located in Jesmond, Newcastle Upon Tyne
platinum (10% IRID PLAT). This vintage 1990s cocktail ring is supplied with two independent diamond
Diamond, Platinum
1950s Midcentury 15.40 Carat Aquamarine Diamond Platinum Cocktail Ring
Located in Philadelphia, PA
% Irid Plat for platinum-iridium Circa: 1950s Ring Size: 5 & sizable Measures: 16.7 mm wide and sits
Aquamarine, Diamond, White Diamond, Platinum
1950s Midcentury 2.22 Carat Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
Completed by sleek cathedral shoulders Stamped 10% Irid Plat for platinum-iridium Circa: 1950s Ring Size
Diamond, White Diamond, Platinum
Art Deco Diamond, Emerald And Platinum Bracelet, Circa 1925
Located in London, GB
platinum, stamped 10% irid plat, numbered 27700, made in the USA, Circa 1925, with an estimated total
Diamond, Emerald, Platinum
Antique Art Deco Platinum Carved Floral Pattern Vintage Band
Located in Addison, TX
Type: Irid and Platinum (Tested) Weight: 3.00g Hallmarks: 100IRID 90PLAT Engraving: none Width
Platinum
1.06 Carat GIA Cert Yellow Orange Diamond Platinum Engagement Ring
Located in Stamford, CT
, VS Platinum Stamped: 10% irid Plat Width at top: 6.3mm Width at bottom: 1.25mm Size 6 and
Diamond, Platinum
Art Deco 0.35 Carat Diamond Platinum Foliate Band Ring
Located in Philadelphia, PA
Stamped 10% Irid Plat for platinum-iridium Circa: 1930s Ring Size: 7 & sizable Measures: 3.5 mm wide
Diamond, White Diamond, Platinum
1930s 1.76 Carat Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
platinum (IRID PLAT). This stunning antique engagement ring is supplied with a GIA diamond certificate for
Diamond, Platinum
Natural Brown Green Yellow Oval Baguette Diamond Platinum Engagement Ring
Located in Stamford, CT
, VS Platinum Stamped: 10% irid Plat Tested: Platinum 5.4 grams Width at top: 8.9mm Height at top
Diamond, Platinum
Art Deco Emerald Diamond Engagement Ring 1/3ct Antique Platinum Original 1930's
Located in Dearborn, MI
Size: 9 (Sizing Available) Weight: 2.9 Grams Metal: Platinum Stamp: 10% IRID PLAT Measures: 4.9mm
Diamond, Emerald, Platinum
Antique Platinum Pear Shape Center w/ Baguette & Round Diamond Ring
Located in Montgomery, AL
Antique 10% Irid 90% Platinum Pear Shape Center With Single Cut Diamond And Baguette Diamond Ring
Diamond, Platinum
Contemporary 1.35 TCW Carat Round Brilliant Diamond Platinum Engagement Ring
Located in Towson, MD
both color and clarity to ensure a seamless, sophisticated look. Crafted in platinum and stamped "IRID
Diamond, Platinum
Edwardian Sapphire Ring 1 Carat Solitaire Platinum Antique Original, 1900s
Located in Dearborn, MI
) Metal: Platinum Stamp: 100 IRID 900 PLAT We strive to provide the most accurate descriptions
Sapphire, Platinum
GIA Certified 6.37 Carat Star Sapphire Diamond Platinum Ring
Located in Stamford, CT
blue with well defined center star. Set with two round brilliant cut side diamonds in a platinum
Diamond, Sapphire, Star Sapphire, Platinum
Retro 0.90 Carat Old European Cut Diamond Platinum Engagement Ring
Located in Philadelphia, PA
ellipse shaped shoulders With knife edge shank with inside inscription Stamped Platinum 10 % Irid Ring
Diamond, Platinum
1950s Midcentury 1.40 Carat Diamond Platinum Three-Stone Engagement Ring
Located in Philadelphia, PA
cathedral style shoulders Stamped 10% Irid Plat for platinum-iridium Circa: 1950s Ring Size: 8 1/2
Diamond, White Diamond, Platinum
Platinum Royal Blue Madagascar Sapphire and Diamond Ring GIA Certified
Located in Cape May, NJ
Era: Modern Composition: Platinum Hallmarks: 10% IRID, PLAT Primary Stone: Cushion Cut Natural
Diamond, Blue Sapphire, Platinum
Edwardian 2.13 Carat Old European Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
foliate motif gallery and shank with millegrain edge Makers mark aK and partially stamped .100 Irid 900
Diamond, Platinum
1.45 Carat Light Violet GIA Certified Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
: Platinum Stamped: 10% Irid Plat
Diamond, Sapphire, Platinum
EGL Certified 1.38 Carat Oval Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
weight .10cts, 5.46 x 2.6mm Platinum Tested: Platinum Stamped: 10% Irid Plat Width at top: 9.08mm Height
Diamond, Platinum
Vintage Tiffany & Co. Platinum Baguette Channel 3mm Band Ring
By Tiffany & Co.
Located in New York, NY
Vintage Tiffany & Co. band ring, a true gem from the 1950s meticulously crafted in platinum
Diamond, Platinum
Midcentury 1.95 Carat Diamond Platinum Engagement Ring GIA, circa 1950
Located in Philadelphia, PA
maker's mark and stamped .900 Plat .100 Irid for platinum-iridium Circa: 1950s Ring Size: 6 1/2
Diamond, White Diamond, 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
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
Aquamarine, Diamond, White Diamond, Platinum
1930 Art Deco Baguette Single Cut Diamond Platinum Anniversary Band Ring
Located in Philadelphia, PA
Stamped Irid Plat for platinum-iridium Ring Size: 6 3/4 & sizable Top measures: 2.5 mm and sits 1.4 mm
White Diamond, Platinum
Art Deco Sapphire Diamond Engagement Ring .70ct Original 1937 Antique Platinum
Located in Dearborn, MI
Genuine Original Art Deco Antique from 1937 Sapphire and Diamond Ring .70ct Vintage Platinum
Diamond, Sapphire, Platinum
GIA Certified 1.76 Carat Art Deco Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
, H, VS Platinum Tested: Platinum Stamped: Platinum Hallmark: 10% Irid 2.4 grams Width at top: 7.2mm
Blue Sapphire, Diamond, Platinum
Ornate Edwardian 0.80 Carat Diamond Platinum Floral Dinner Ring, circa 1915
Located in Philadelphia, PA
Stamped 900 PLAT 100 IRID for platinum Ring Size: 8 & Sizable Top measures 22.6 mm and sits 2.8 mm high
Diamond, Platinum
Tiffany & Co. Ruby Diamond Band Ring Vintage Platinum Estate Fine Jewelry
By Tiffany & Co.
Located in Torrance, CA
. The ring is hallmarked "IRID PLAT" for platinum and "Tiffany & Co."
Diamond, Ruby, Platinum
Vintage Ladies' Hamilton Platinum 6.95ctw Diamond Fancy Bracelet Dress Watch
By Hamilton
Located in Montclair, NJ
Platinum (10% IRID. PLAT.) Case Height: 25.02mm Case Width: 13.97mm (not including the crown) Bracelet
Diamond, Platinum
Tiffany & Co. Emerald Baguette Brilliant Diamond Platinum Ring, circa 1950
By Tiffany & Co.
Located in Philadelphia, PA
Completed by split shoulders and scrolled gallery detail Fully signed Tiffany & Co. and stamped Irid Plat
Diamond, White Diamond, Emerald, Platinum
Art Deco 2.68 Carat Diamond Platinum Sunburst Engagement Ring GIA
Located in Philadelphia, PA
mark and stamped Irid Plat for platinum Circa: 1930s Ring Size: 5 & sizable Measures: 8.7 mm wide
Diamond, White 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.