Unavailable|$4,995
Double Halo Ruby and Diamond Engagement Ring in Platinum
Located in Boston, MA
An exceptionally beautiful ruby and diamond ring in luxurious platinum. Featuring beautiful French cut rubies, sparkling single cut and antique mine cut diamonds, and hand applied mi...
Diamond, Ruby, Platinum
Unavailable|$4,495
Striking Double Halo Diamond and Sapphire Target Ring in Platinum
Located in Boston, MA
A ring with a unique twist on the traditional diamond target style engagement ring. Featuring a center antique European cut diamond framed by rich blue French cut sapphires, this ri...
Diamond, Blue Sapphire, Platinum
Unavailable|$4,995
Double Halo 0.75 Carat Diamond French Cut Sapphire Platinum Ring
Located in Boston, MA
An exceptionally beautiful french cut sapphire and diamond ring in luxurious platinum. Featuring beautiful French cut sapphires, sparkling single cut and antique mine cut diamonds, a...
Black Diamond, Blue Sapphire, Platinum
Unavailable|$32,905
Art Deco Floral Diamonds Platinum 15 Carats European Double Clip or Brooch
Located in Viana do Castelo, PT
A Breathtaking and unique Portuguese Diamond Art Deco double Clip/ Brooch representing two hanging flowers.
Diamond, Gold, White Gold, Platinum, 18k Gold
Unavailable|$4,995
Double Halo 0.80 Carat Diamond and Emerald Ring
Located in Boston, MA
An exceptionally beautiful emerald and diamond ring in luxurious platinum. Featuring beautiful French cut Colombian emeralds, sparkling single cut and antique mine cut diamonds, and ...
Diamond, Emerald, Platinum
Unavailable|$11,920
Alexandra Mor Double Sided Tribal Studs with South Sea Pearls and Tagua Seed
By Alexandra Mor
Located in New York, NY
Platinum set on 18 KY Gold Alexandra Mor logo gallery with Alexandra Mor's signature details of 1mm kinfe edged wire and diamond melle wire. 0.83 Diamond Total Carat Weight.
Diamond, South Sea Pearl, 18k Gold, Platinum
Sold|$2,300
Double Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
Each center diamond weighs approximately 0.45 carats and is E-F in color with very minor clarity characteristics. The two main diamonds are accented by baguette and round cut diamond...
Diamond
Sold|$25,177
1950s Double Diamond Platinum Clip Brooch
Located in London, GB
Mounted in platinum. Diamonds approximately 17.00cts Circa 1950's
Diamond, Platinum
Antique Art Deco Double Diamond Platinum Engagement Ring
Located in Miami, FL
This antique Art Deco engagement ring of captivating affluent aesthetic is crafted in solid platinum, weighing 4.5 grams and measuring 15 mm x 8 mm x 4 mm. Quintessentially Art Deco...
Diamond, White Diamond, Platinum
36 Carat Total Weight Platinum Diamond Double Necklace
By Vivid Diamonds
Located in Miami, FL
This lovely platinum diamond necklace features two connectable diamond necklaces one measuring 16.50 inches in length and the other measuring 15.50 inches in length. They both measur...
Diamond, White Diamond, Platinum
GIA Certified 0.83 Carat Round Double Halo Split Shank Platinum Diamond Ring
By EMD Diamonds
Located in New York, NY
Surrounding the central diamond is a meticulously crafted double halo of smaller diamonds, presenting a floret shape when viewed from the profile.
Diamond, Platinum
Sold|$5,700
Diamond & Platinum Double-Clips / Brooch
Located in Beverly Hills, CA
Elegant diamond and platinum brooch transforming into a double-clip created in the 1960's. .
Diamond, Platinum
Sold|$5,640
Swirl Double Clip Platinum Diamonds
Located in Monte Carlo, MC
1935 Swirl double clip in platinum set with brilliant and baguette cut diamonds, the two clips can be assembled with a ratchet and form a brooch, height 6.5 cm (35.3 grams)
Diamond, Platinum
Sold|$7,700
Diamond Platinum Double Frame Earrings
Located in New York, NY
This gorgeous pair of platinum double frame earrings feature 76 sparkling round brilliant diamonds with a total weight of approximately 9.00cts.
Diamond, White Diamond, Platinum
Sold|$7,000
Diamond Platinum Double Clip Brooch
Located in Lucerne, CH
This beautifully designed floral double clip brooch in platinum 950 is paved with 106 round cut diamonds and 22 baguette cut diamonds of G/H color and vs/si clarity, total weight app...
Diamond, White Diamond, Platinum
Sold|$32,500
Double Stranded Diamond Platinum Necklace
Located in Beverly Hills, CA
A rhythmic beauty of sensational design. Featuring 176 perfectly matching diamonds that weigh 21.13 carats and are G-H color, VS-SI clarity. Expertly hand crafted in platinum. 17-...
Diamond, Platinum
Sold|$32,500
Double Stranded Diamond Platinum Necklace
Located in Beverly Hills, CA
A rhythmic beauty of sensational design. Featuring 176 perfectly matching diamonds that weigh 21.13 carats and are G-H color, VS-SI clarity. Expertly hand crafted in platinum. 17-...
Diamond, Platinum
Sold|$32,500
Double Stranded Diamond Platinum Necklace
Located in Beverly Hills, CA
A rhythmic beauty of sensational design. Featuring 176 perfectly matching diamonds that weigh 21.13 carats and are G-H color, VS-SI clarity. Expertly hand crafted in platinum. 1...
Diamond, Platinum
Sold|$9,800
Platinum Double Row Diamond Band
Located in Scottsdale, AZ
Designer: Custom Material: platinum Diamonds: 43 round brilliant cut = 5.16cttw Color: K / L Clarity: SI2-I1 Size: 8.5 Dimensions: ring top measures 6 mm in width Weight: 11.72 grams
Diamond, Platinum
Sold|$26,500
1950s Diamond Platinum Double Clips
Located in Carmel-by-the-Sea, CA
Diamond brilliance celebrated in classic 1950s fashion, with mixed cuts of diamonds assembled into a swirling pattern of elegance. In total, there are 8.35 carats of round- baguette-...
Diamond, Platinum
Sold|$10,887
Diamond Platinum Double Clip Brooch
Located in London, GB
A flower spray diamond set double clip brooch, with approximately 4.50ct of round brilliant-cut diamonds, mounted in platinum, with white gold fittings, circa 1940.
Diamond, Platinum, White Gold
Sold|$2,700
Platinum Double Row Diamond Band
Located in Scottsdale, AZ
Designer: custom Material: platinum Diamond: 14 single cut = 0.14cttw Color: H Clarity: SI2 Ring size: 5.25 (please allow two additional shipping days for sizing requests) Weight: 4....
Diamond, Platinum
Sold|$20,209
Platinum Double Clip Brooch with Diamonds
Located in Braintree, GB
Platinum double clip brooch with diamonds Circa 1990's Tested positive for 950 platinum Approx Dimensions - Size : 5.4 x 4.4 x 1.3 cm Weight : 33 grams Diamonds - Cut : Round, Ba...
Diamond, Platinum
Sold|$20,760
Retro Double Clip Brooch Diamond Platinum
Located in Geneva, CH
Retro design Diamond round and baguette cut on platinum and white gold.
Diamond, Platinum
Midcentury Diamond Platinum Double Swirl Ring
Located in Beverly Hills, CA
One Mid Century Diamond Platinum Double Swirl Ring. Featuring two round brilliant cut, six marquise cut, and 22 baguette cut diamonds with a total weight of approximately 2.00 carats...
Diamond, White Diamond, Platinum
Sold|$1,900
Ruby Diamond Platinum Double Heart Pendant
Located in Aspen, CO
Platinum, diamond and ruby pendant. The small heart shaped ruby has a sweet Burma color and is approximately .10 cts. The diamonds (.25 cts.) are all H/I, VS1 and full brilliant cu...
Diamond, Ruby, Platinum
Sold|$3,400
Emerald Diamond Double-Halo Platinum Ring
Located in Beverly Hills, CA
It is accented by a double-halo of round brilliant and baguette cut diamonds weighing a total of 0.88 carats.
Diamond, Emerald, Platinum
Sold|$13,609
Emerald and Diamond Platinum Double Clip
Located in London, GB
An Art Deco emerald and diamond double clip brooch, set with round brilliant-cut diamonds, weighing an estimated 2.60ct, and calibre cut emeralds, with black onyx finials, mounted in...
Diamond, Emerald, Onyx, White Gold, Platinum
Sold|$23,000
Diamond and Platinum Double Clip Brooch
Located in Firenze, IT
Pave' set with round and baguette diamonds, total 7.50 Carats
Diamond, Platinum
Sold|$24,500
Platinum Ruby Diamond Double-clip Brooch
Located in New York, NY
Round and baguette-cut diamonds total approx. 3.8ct. 52 square-cut rubies total approx. 5.8ct. Weight: 26.30 grams Measurement: 6.2 x 3.0cm
Diamond, Ruby, Platinum
Sold|$37,500
Stunning Diamond Platinum Double Clip
Located in New York, NY
Beautiful diamond double clip finely crafted in platinum with baguette and round cut diamonds weighing approx. 20.00 carats.
Diamond
GIA Light Green Radiant Diamond Double Halo Fancy Intense Pink Diamond Ring
By Harbor Diamonds
Located in New York, NY
GIA Certified engagement ring featuring one Radiant Light Green Diamond weighing 1.04 Carats flanked with 24 Fancy Intense Pink weighing 0.11 Carats and 48 round brilliants weighing...
Pink Diamond, 18k Gold, Rose Gold, Platinum
GIA 2.5ct Round Double Channel Engraved Ribbon Diamond Ring
By EMD Diamonds
Located in New York, NY
Introducing a stunning diamond ring that captivates with its elegant design and exceptional craftsmanship. This remarkable piece features a mesmerizing round diamond weighing 2.5 , g...
Diamond, Platinum
Platinum 1.35ct Diamond Double Halo Ring MF06-123025
By LB Exclusive
Located in Southampton, PA
A 1mm platinum shank keeps the profile slim and understated on the hand.This Platinum 1.35 ct Diamond Double Halo Ring is offered in estate condition and is presented in a gift box.
Diamond, Platinum
Sold|$11,750
Faye Kim Platinum Diamond Double Drop Earrings
By Faye Kim
Located in Darien, CT
Unique and One of A Kind Handcrafted in Platinum, Faye Kim's double hinge diamond earrings are the ultimate in understated elegance.
Diamond, White Diamond, Platinum
Sold|$13,750
Faye Kim Platinum Double Diamond Hinge Earrings
By Faye Kim
Located in Darien, CT
Faye Kim Platinum Double Diamond Hinge Earrings Indulge in luxury with these double diamond drop earrings.
Diamond, Platinum
Tiffany & Co. Diamond Double Swing Diamond Platinum Pendant
By Tiffany & Co.
Located in Miami, FL
Simply stunning Platinum Tiffany & Co. Diamond Double Swing Pendant, suspended on a 16" platinum chain.
White Diamond, Platinum
Edwardian Carved Ruby Diamond Platinum Double Clips
Located in Carmel-by-the-Sea, CA
Clearly created in the same era as Cartier’s iconic "Tutti Frutti" collections, this beautifully-preserved pair of platinum double clips combines mixed cuts of white diamonds with ca...
Diamond, Ruby, Platinum
Sold|$7,000
Deco Diamond Double Clip Brooches Platinum
Located in North Hollywood, CA
These lovely small clip brooches are a delight. They work perfectly on a shirt, jacket and of course dresses. These clips come in there original box and they are from England. These...
Diamond, Platinum
Double Clip Diamonds Platinum Brooch Transformer, 1930
Located in Herzelia, Tel Aviv
Diamonds Platinum Brooch Transforming in two separate Clips / pins. 6 Carat of different size round-cut Diamonds mounted in Platinum creating a magnificent natural ornament.
Diamond, Platinum
Sold|$13,200
Art Deco Platinum Diamond Double Pin Brooch
Located in New York, NY
These diamond double pin brooches are crafted in platinum.
Diamond, Platinum
Sold|$19,733
Art Deco Diamond Platinum Double Clip Brooch
Located in London, GB
An Art Deco diamond double clip brooch, set with approximately 7.00ct of round brilliant-cut and baguette-cut diamonds, mounted in platinum with white gold fittings, measuring approx...
Diamond, Platinum
Diamond Double Bow Platinum Pendant or Brooch
Located in Southampton, PA
The ever-dazzling combination of prestigious platinum and resplendent diamonds is featured in this extravagant brooch that will catch everybody’s gaze. The brooch boasts an incredibl...
White Diamond, Platinum
Sold|$13,500
Platinum 18K Gold Diamond Double-pin Brooch
Located in New York, NY
Features an array of kite, hexagon, baguette, marquise-cut diamonds total 5.25ct, and full-cut diamonds total approx. 2.95ct, G-I/VS.
Diamond, Platinum
Certified Double Prong Martini Diamond Platinum Stud Earrings
Located in Webster, NY
These classic Diamond stud earrings are set in a Platinum Double Prong Martini setting.
Diamond, Platinum
Sold|$29,800 / set
Art Deco Diamond Double-Clip Platinum Brooch
Located in Beverly Hills, CA
A chic and elegant pair of Art Deco double-clip brooches made in the early 1930’s. They feature 9 carats of European-cut diamonds set in a royal crown style.
Diamond, Platinum
GIA Certified Double Halo Diamond Platinum Engagement Ring
Located in Webster, NY
Stunning double halo style ring features a 1.01CT GIA Certified Round Brilliant Cut Diamond with I color and VS1 clarity in the center.
Diamond, Platinum
Sapphire Diamond Platinum Gold Double-Sided Cufflinks
Located in Stamford, CT
Vintage Platinum 14k yellow gold double sided 1930 cufflinks with Sapphires and old European cut Diamonds. 2 round blue sapphires, approx. total weight .12cts, MI 2 round old Europe...
Diamond, Blue Sapphire, Sapphire, 14k Gold, Yellow Gold, Platinum, Gold
Estate White Diamond Double Row Band in Platinum
Located in Los Angeles, CA
Beautiful double row of diamonds weighing 0.51 ct. in a handmade platinum mounting size 6.25.
White Diamond, Platinum
Tiffany & Co. Tiffany Diamond Platinum Double-Drop Earrings
By Tiffany & Co.
Located in Stamford, CT
Tiffany & Co. Tiffany stars double drop earrings in solid platinum with high grade full cut diamonds large size.
Diamond, Platinum
2.00 Carat Sapphire Diamond Platinum Double Halo Ring
Located in Carmel-by-the-Sea, CA
Rendered in platinum, this ring doubles the classic halo style that has become so beloved and creates a double frame of brilliant white diamonds around the center stone.
Black Diamond, Blue Sapphire, Platinum
1950s Sterlé Diamond Gold Platinum Double Ribbon Brooch
Located in New York, NY
A gold and diamond brooch of knotted double ribbon design, in platinum and 18k.
Diamond, 18k Gold, Platinum
Double Halo Cushion GIA Diamond Platinum Engagement Ring
By Dover Jewelry
Located in Miami, FL
This stunning diamond engagement ring is crafted in solid platinum.
Diamond, Platinum
Art Deco Diamond Ruby Platinum Double Clip Brooch
Located in Beverly Hills, CA
A spectacular platinum Art Deco double-clip-brooch featuring just under 10 carats of round and baguette cut diamonds.
Diamond, Ruby, Platinum
Art Deco Diamond and Platinum Double Clip Brooch
Located in Simpsonville, SC
Immerse yourself in the opulence of the Roaring Twenties with this exquisite Art Deco Diamond and Platinum Double Clip Brooch, an emblem of an era characterized by glamour and sophis...
Diamond, Platinum
TIFFANY & CO Platinum "Victoria" Diamond Flower Double Chain Bracelet
By Tiffany & Co.
Located in New York, NY
Tiffany & Co. Platinum "Victoria" Diamond Flower Double Chain Bracelet Features Marquise diamonds in flower pendant.
Diamond, Platinum
FRENCH Deco Platinum 18.0cts Diamond Double-Clip Brooch
Located in New York City, NY
Magnificent platinum and diamond double-clip brooch from the Art Deco (1920s) era, of French origin.
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.