$15,840Sale Price|20% Off
GIA Certified 7cts Ceylon Blue Sapphire with Diamond Ring Set in Platinum
Located in Bangkok, TH
Ceylon Blue Sapphire 7.56 carats with Diamond 0.86 carat Ring set in Platinum 900 Settings (GIA
Diamond, Blue Sapphire, Platinum
Contemporary Solitaire Diamond Platinum Engagement Ring
Located in Lisboa, PT
sophistication and modern design. Handcrafted in platinum (900‰ purity), this exquisite piece centers on a
Diamond, Platinum
GIA Certified 6.75 Carat Oval Blue Sapphire and Diamond Ballerina Ring
Located in Miami, FL
ballerina style platinum 900 ring setting. Ring size 7, adjustable. Details: Item Type: Cocktail Ring
Diamond, Sapphire, Blue Sapphire, Platinum
1 Carat Pave Diamond Dome Platinum Band Ring
Located in Miami, FL
diamonds—perfect for stacking or wearing solo. Details: Item Type: Pave Diamond Band Metal: Platinum 900
Diamond, White Diamond, Platinum
GIA Cert. 5.10 Carat Untreated Black Opal Diamond Halo Platinum Starburst Ring
Located in Miami, FL
play-of-color, set in a four-prong platinum 900 mounting within a starburst single-row round brilliant
Agate, Diamond, Platinum
Platinum 1.27ct Jelly Opal and Diamond Ring
Located in New York, NY
7.5mm Size: 6.75 Hallmark: Pt900 Metal: Platinum 900 Item #: BR-1611-060325-11
Ruby and Diamond 23 Carat Bracelet in Platinum
Located in Chicago, IL
to enhance sparkle and contrast. Expertly crafted in platinum 900, the bracelet offers substantial
Diamond, Ruby, Platinum
7.15 Carat Oval Aquamarine & Diamond Floral Filigree Platinum Ring
Located in Miami, FL
This exquisite Platinum 900 Aquamarine Ring features a 7.15-carat oval aquamarine measuring 13.2 x
Aquamarine, Diamond, Platinum
Platinum GIA 30.2ctw Rectangular Pastel No Heat Sapphire Diamond Necklace
Located in Montclair, NJ
.) Total Carat Weight: 30.2 (approx.) Material: Solid Platinum .900+ (tested) - Stamped PT950 Material
Diamond, Sapphire, Platinum
GIA Cert. 1.50 Marquise Diamond E/VS2 Cluster Halo Platinum Band Cocktail Ring
Located in Miami, FL
\GIA Certified platinum 900 wide band cocktail ring featuring a large 1.50 carat E/VS2 marquise
Diamond, Platinum
1940s Mid-Century Platinum Diamond Spray Ring, Attributed to Frederick Fink
Located in Miami, FL
900 platinum/iridium, the ring dates to the 1940s–1950s and showcases the refined craftsmanship
Diamond, Platinum
1.85 Carat Untreated Jadeite Jade and Diamond Platinum Ring HK Certified
Located in Miami, FL
just the perfect amount of sparkle. Item Details: Type: Ring Metal: Platinum 900 Weight: 5.10 Grams
Diamond, Jade, Platinum
3 Carat Diamond Tennis 4-Prong Bracelet in Platinum 4MM 7"
Located in Miami, FL
and shine when worn. Item Details: - Item Type: Tennis Bracelet - Metal: Platinum (900 Purity
Diamond, White Diamond, Platinum
0.5 Carat Round Diamond Bamboo Style Platinum Channel Set Band Ring
Located in Miami, FL
bamboo-style setting. Details: Item Type: Women's Band Ring Metal: Platinum 900 Size: 7 Weight: 7.31
White Diamond, Platinum
1.85 Carat Untreated Jadeite Jade and Diamond Platinum Ring HK Certified
Located in Miami, FL
just the perfect amount of sparkle. Item Details: Type: Ring Metal: Platinum 900 Weight: 5.10 Grams
Diamond, Jade, Platinum
7.50 Carat Untreated Oval Green Jadeite with Baguette Diamonds in Platinum Ring
Located in Miami, FL
: Platinum 900 Size: 6.5 Weight: 10.98 Grams Center Stone Details: Gemstone: Jadeite Jade Type A "Fei
Diamond, Jade, Platinum
$54,000Sale Price|20% Off
Bora & Co GRS Certified 4.05ct Colombian Emerald & Diamond Ring
Located in New York, NY
Bora & Co GRS Certified 4.05ct Colombian Emerald and Diamond Platinum Ring Showcasing the pinnacle
Diamond, Emerald, Platinum
Estate Vintage Platinum 5.49ct Burmese Spinel Solitaire Ring, No Heat
By Emeralds Maravellous
Located in US
to amplify both luminosity and chromatic intensity. Secured in refined platinum 900, the minimalist
Spinel, Platinum
1.58 Carat Blue Round Sapphire & Baguette Diamond Platinum 6MM Band Ring
Located in Miami, FL
a structured yet fluid aesthetic. Details: Item Type: Band Ring Metal: Platinum 900
Diamond, Sapphire, Platinum
Certified 5.80 Carat Natural Jadeite Jade and Baguette Diamond Platinum Ring
Located in Miami, FL
Size 7 Details: Item Type: Statement Ring Metal: Platinum 900 Ring Size: 7 (adjustable) Weight: 8.89
Diamond, Jade, Platinum
$22,800Sale Price|20% Off
Bora & Co GRS Certified 3.60ct Colombian Emerald & Diamond Ring
Located in New York, NY
Platinum 900 with a total weight of 10.1 grams, this remarkable piece captures the essence of timeless
Diamond, Emerald, Platinum
GRS Certified 2cts Pigeon's Blood Burmese Ruby with Diamond Ring in Platinum
Located in Bangkok, TH
total 1.27 carats Ring and Ring Jacket set in Platinum 900 Settings (GRS Certified) Width: 1.3 cm
Diamond, Ruby, Platinum
1.73 Carat Jadeite Jade Fei Cui & Diamond Halo Platinum Ballerina Filigree Ring
Located in Miami, FL
Metal: Platinum 900 Weight: 8.72 Grams Size: 6.5 Setting: Cathedral, Filigree Center Stone Details
Diamond, Jade, Platinum
Art Deco Platinum Drop Earrings with 5.80ct Old European Cut Diamonds
Located in Braintree, GB
. Crafted from high-purity 900 platinum, these earrings exemplify the refined geometric simplicity of the
Diamond, Platinum
$3,350
H 0.23 in W 0.25 in L 16.5 in
Vintage Platinum GIA 1.35ct Burma No Heat Sapphire Solitaire Pendant Necklace
Located in Montclair, NJ
: Solid Platinum .900+Platinum w/ 18k White Gold Clasp Weight: 3.43 Grams Chain Type: Handmade Open Work
Sapphire, Gold, White Gold, Platinum
Art Deco Platinum 5-Row Pearl Bracelet with 8 Ctw in Emeralds and Diamonds
Located in Miami, FL
: Platinum 900 - Weight: 19.28 Grams - Era: Art Deco - Setting: Prong - Size: 7.25 inches - Face: 3.8 x 2.75
Diamond, Emerald, Pearl, Platinum
$78,400Sale Price|20% Off
10.15ct Asscher Cut Diamond Platinum Eternity Band Ring
Located in Chicago, IL
Asscher cut diamonds totaling an impressive 10.15 carats. Expertly crafted in luxurious platinum 900, the
Diamond, White Diamond, Platinum
Certified 30 Carat Untreated Jadeite Jade & Diamond Platinum Ring
Located in Miami, FL
Metal: Platinum 900 Size: 6.75 (adjustable) Weight: 12.57 Grams Center Stone Details: Type: Natural
Diamond, Jade, Platinum
$11,840Sale Price|20% Off
Bora & Co GRS Certified 3.21ct Colombian Emerald & Diamond Ring
Located in New York, NY
captivating depth. Masterfully set in Platinum 900, with a total weight of 10 grams, this exquisite piece
Diamond, Emerald, Platinum
9 Carat Untreated Jadeite Jade Fei Cui and Diamond Platinum Ring HK Certified
Located in Miami, FL
Details: Type: Ring Metal: Platinum 900 Weight: 6.79 Grams Size: 7 (adjustable) Setting: Split Band
Diamond, Jade, Platinum
Platinum 11.84 Carat Round Black Diamond Engagement and Pink Diamond Prong Ring
Located in Miami, FL
choice. Size 6 1/4 and adjustable. Details: - Item Type: Ring - Metal: Platinum 900 - Size: 6 1/4
Diamond, Black Diamond, Ruby, Platinum
$1,788
W 0.5 in D 0.16 in L 0.79 in
GIA F1/Minor 1.16ct Top Quality Colombia Emerald Pendant in Platinum
Located in Singapore, SG
Colombian Emerald Pendant in Platinum 900 Features: Main Gemstone - Colombian Emerald Total
Diamond, Emerald, Platinum
5.32 Carat Natural Jadeite Jade and Diamond Filigree Platinum Ballerina Ring
By Unbranded
Located in Miami, FL
Fei Cui Grade A untreated Jadeite Jade. Details: Item Type: Ballerina Ring Metal: Platinum 900 Size
Diamond, Jade, Platinum
3.29 Carat Oval Blue Sapphire & Diamond in Platinum Engagement Ring
Located in Miami, FL
A platinum engagement ring featuring a 3.29-carat oval cut dark blue sapphire, flanked by round cut
Diamond, Sapphire, Platinum
5.83 Carat Oval No Heat Blue Sapphire & Diamond Halo Platinum Pendant Necklace
Located in Miami, FL
Platinum Pendant Necklace. Item Details: Item Type: Pendant Necklace Metal Type: Platinum 900 Weight
Diamond, Sapphire, Blue Sapphire, Platinum
$15,160Sale Price|20% Off
W 1.77 in L 1.89 in
Art Deco 1930 Convertible Pendant Brooch Platinum 11.73 Ctw Diamonds & Emeralds
Located in Miami, FL
Platinum .900/.999 PL and Iridium .100/.999 IR. Note: Muzo is a town and municipality in the western
Diamond, White Diamond, Emerald, Platinum
GIA Certified 1.37 Carat Spinel Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
2 Princess cut diamonds, approx. total weight .30cts, F, VS2 Size: 6 and sizable Platinum 900
Diamond, Spinel, Platinum
1.50 CT. Oval Red Ruby GIA Certified in Platinum Diamond Ring
Located in Houston, TX
available upon request Metal: Platinum - 900 Total Estimated Stone Weight: 2.00 ct. Shank Width: 2.9mm
Diamond, Ruby, Platinum
Natural 1.52 Carat Oval Blue Sapphire and Diamond Platinum Floral Ring
By Gad & Co.
Located in Miami, FL
crafted from a platinum 900 ring setting. The main stone is a natural blue sapphire with good transparency
Diamond, Sapphire, Blue Sapphire, Platinum
AGL Certified 5.31 Carat No Oil Emerald & Trillion Diamond 3 Stone Ring
By Gad & Co.
Located in Miami, FL
platinum 900 shank and 18k gold, this ring is a testament of blended beauty and a perfect beginning to a
Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold, Yellow Gold...
GIA Cert 10.47 Carat Oval Cut Tourmaline & Diamond in Platinum Cocktail Ring
Located in Miami, FL
: Platinum 900 Size: 7 (adjutable) GIA Certified Center Stone Details: Type: Chrome Tourmaline Color: Green
Diamond, Tourmaline, Platinum
Platinum GIA 13.65ctw High Quality Blue Star Sapphire & Diamond Dual Finish Ring
Located in Montclair, NJ
) Total Carat Weight: 13.65 (exact) Material: Solid Platinum .900+ Weight: 13.68 Grams Ring Size: 10.5
Diamond, Sapphire, Platinum
20.96 Oval Light Pink Kunzite and Diamond in Platinum Filigree Cocktail Ring
Located in Miami, FL
: Statement Ring Metal: Platinum 900 Size: 7 Weight: 13.15 Grams Center Gemstone Details: Type: Kunzite
Diamond, Kunzite, Platinum
Certified 2.69 Carat Oval Bright Green Untreated A Jadeite Jade Platinum Ring
Located in Miami, FL
in Platinum 4 Prong Ring Details: Item Type: Cocktail Ring Metal: Platinum 900 Size: 4 (adjustable
Diamond, Jade, Platinum
$81,600
W 0.7 in L 1.5 in
Rare GIA Certified 50 Carat Greenish Blue Zircon Pendant In 18K and Platinum
Located in Miami, FL
, expertly crafted with platinum 900 and 18K yellow gold, weighs 26.25 grams and measures 1.50" x 0.7" inches
Diamond, Zircon, Blue Zircon, 18k Gold, Yellow Gold, Platinum
$45,360Sale Price|20% Off
Bora & Co GRS Certified 7.12ct Columbian Emerald & Diamond Ring
Located in New York, NY
design. Meticulously handcrafted in Platinum 900, this ring has a total weight of 12.2 grams, embodying
Diamond, Emerald, Platinum
$45,360Sale Price|20% Off
Bora & Co GRS Certified 7.12ct Columbian Emerald & Diamond Ring
Located in New York, NY
design. Meticulously handcrafted in Platinum 900, this ring has a total weight of 12.2 grams, embodying
Diamond, Emerald, Platinum
GIA Certified 2.91 Carat Colombian Emerald & Diamond Platinum Ring
Located in Miami, FL
Type: Vintage Ring Metal: Platinum 900 Weight: 4.33 grams Ring Size: 6 (adjustable) Center Stone
Diamond, Emerald, Gold, Yellow Gold, Platinum
$2,580
W 0.46 in L 0.79 in
GIA Certified 1.71Ct Colombian Emerald Pendant with Natural Diamonds in Platinum
Located in Singapore, SG
Colombian Emerald Pendant in Platinum 900 Features : Main Gemstone - Colombian Emerald Total
Emerald, Diamond, Platinum
Certified Untreated 8.14 Carat Jadeite Jade A Fei Cui Platinum Ring
Located in Miami, FL
: Statement Ring Metal: Platinum 900 Size: 7 (adjustable) Weight: 6.29 Grams Center Stone Details: Type
Diamond, Jade, Platinum
GIA 1.38 Carat Emerald Cut Colombian Emerald & Diamond Platinum Ballerina Ring
Located in Miami, FL
GIA-certified 1.38 carat emerald cut Colombian emerald and 1.63 carat total diamond platinum 900
Diamond, Emerald, Gold, 18k Gold, White Gold, Yellow Gold, Platinum
1.16 Carat Three Row White and Blue Diamond Channel Seting Band Ring
Located in Miami, FL
. The diamonds are set in a combination of settings. Details: Item Type: Band Ring Metal: Platinum
Diamond, Platinum
Belle Époque Platinum Diamond Horseshoe Brooch, Circa 1910, France
Located in Braintree, GB
cm • Width: 3.5 cm • Weight: 11.5 g Specifications • Metal: Platinum (900 purity) • Period/Era
Diamond, Platinum
GIA certified 5.83Ct Colombian Emerald Ring with Natural diamonds in Platinum
Located in Singapore, SG
enhancement (F2) Origin - Colombia Natural Diamonds - 1.4Ct Metal- Platinum 900 Total Gross Weight
Emerald, Diamond, Platinum
GIA certified 2.77Ct Colombian Emerald Ring with Natural diamonds in Platinum
Located in Singapore, SG
) Origin - Colombia Natural Diamonds - 0.68Ct Metal- Platinum 900 Total Gross Weight - 4.15Gram Stamped
Diamond, Emerald, Platinum
EGL Certified 1.65 Carat Round & Princess Diamond Platinum Channel Set Ring
Located in Miami, FL
: Platinum 900 Size: 6.5 (adjustable) Weight: 9.50 Grams Width: 5.7 mm Setting Style: Half bezel and channel
Diamond, Platinum
GIA Certified 2.4 Carat No Heat Pink Sapphire & Briolette Diamond Platinum Ring
By Gad & Co.
Located in Miami, FL
round brilliant diamonds. Item Details: - Type: Cocktail Ring - Metal: Platinum 900 - Weight: 12.55
Diamond, White Diamond, Pink Sapphire, 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.
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.