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
2.07ctw Ruby Cabochon and 0.63ctw Diamond Unique Chevron Stacking Band Ring
Located in Osprey, FL
1 size) ♥ Material: Platinum 900, 9g+ ♥ Gemstone: Ruby 1.27ct, side Ruby 0.8ctw, Diamond 0.63ctw ♥
Diamond, Ruby, Platinum
IGI certified 1.04Ct Colombian Emerald Ring with Natural diamonds in Platinum
Located in Singapore, SG
Natural Diamonds (16)pcs- 0.20Ct Metal- Platinum 900 Weight of metal (nett) - 3.68Gram Total Gross
Emerald, Platinum
Peter Suchy 1.01 Carat Old European Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
900 Tested: Platinum Stamped: PT 900 4.1 grams Width at top: 8.05mm Height at top: 5.40mm Width at
Diamond, Platinum
$176,000Sale Price|20% Off
100 Carat David Webb Diamond Sapphire Bracelet
By David Webb
Located in Chicago, IL
and exceptional gemstone setting. Executed in Platinum 900, this substantial cuff is lavishly adorned
Diamond, White Diamond, Sapphire, Platinum
Art Deco Platinum Diamond and Colombian Emerald Drop Earrings
Located in Braintree, GB
• Metal: Platinum (900 purity) • Period/Era: Art Deco, c.1920s • Maker/Origin: Not specified • Primary
Diamond, Emerald, Platinum
Channel Baguette Diamond Platinum 18K Gold Band Ring
Located in Miami, FL
: Platinum 900 and 18K Yellow Gold Size: 7.75 (adjustable) Weight: 8.14 grams Band Width: 9.6mm Setting
Diamond, Gold, 18k Gold, Yellow Gold, Platinum
1.25 Carat Oval Blue Sapphire and Diamond Platinum Double Halo Ballerina Ring
Located in Miami, FL
— Ballerina Halo Style Metal: Platinum 900 Size: 7.5 (Adjustable) Weight: 4.22 grams Shank Type: Split shank
Diamond, Sapphire, Platinum
GIA Certified 4.58 Carat Emerald Cut Indicolite Tourmaline Diamond Platinum Ring
Located in Miami, FL
Metal: Platinum 900 Size: 6 (adjustable) Weight: 8.36 grams Setting: Four-Prong Setting Ring Style
Diamond, Tourmaline, Platinum
Art-Deco Platinum Burmese Ruby, Sapphire Diamond Reversible Swivel Eternity Band
Located in MELBOURNE, AU
” & sparkle… Total item’s weight: 4.9gr. Ring’s size: I ½ The band is performed in Platinum 900, well
Diamond, Ruby, Sapphire, Platinum
Exceptional 7.12 Carat NO HEAT GIA Certified Vivid Blue Sapphire & Diamond Ring
Located in Media, PA
round brilliant diamonds that amplify the sapphire's presence. Metal: Solid Platinum (900-950. Band
Diamond, Sapphire, Blue Sapphire, Platinum
GIA Certified 1.11 Carat Fancy Brown Emerald Cut Diamond Drop Pendant Necklace
Located in Miami, FL
GIA-certified 1.11 carat Fancy Dark Orangy Brown emerald cut diamond pendant set in platinum 900
Diamond, Brown Diamond, Gold, Yellow Gold, Platinum
Belle Époque Platinum Diamond and Natural Pearl Drop Earrings
Located in Braintree, GB
. Dimensions • Length: 4.2 cm • Width: 1 cm • Combined Weight: 5.16 g Specifications • Metal: Platinum (900
Diamond, Natural Pearl, Platinum
3.25 Carat Tsavorite Garnet & Diamond Platinum Wavy Wide Band Ring
Located in Miami, FL
grams with 19.7mm face width. Product Specifications: Item Type: Cocktail Ring Metal: Platinum 900 Size
Diamond, Garnet, Platinum
Art Deco Style Diamond Sapphire Target Platinum Engagement Cocktail Dress Ring
Located in Lisbon, PT
Art Deco Style diamond and sapphire target stylized engagement or cocktail/dress ring in platinum
Diamond, Sapphire, Platinum
AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum
By Gad & Co.
Located in Miami, FL
Details: - Type: Ring - Metal: Platinum 900 / 18K Yellow Gold - Weight: 8.65 Grams - Setting: Prong, Halo
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
ART-DECO 1935 American Riviera Necklace In Platinum With 5.04 Cwt. Diamonds
Located in Miami, FL
been meticulously crafted in solid .900 platinum and is adorned with one hundred forty-four natural
Diamond, White Diamond, Platinum
GRS Cert. 4.9 Carat Insignificant Oil Colombian Emerald & Trapezoid Diamond Ring
By Gad & Co.
Located in Miami, FL
Stones, Set in a Platinum and 18K Gold 3-Stone Ring. A gorgeous, minimalist design ring with a center
Diamond, Emerald, 18k Gold, Platinum
GIA Certified Type A Fei Cui Jadeite Jade Diamond Halo Platinum Split Shank Ring
Located in Miami, FL
: Cocktail Ring Metal: Platinum 900 Size: 6.75 (adjustable) Total Weight: 9.40 grams Ring Face: 17 x 13.5mm
Diamond, Jade, Platinum
1.89 Carat Oval Kashmir Blue Sapphire & Diamond Platinum Art Deco Vintage Ring
Located in Miami, FL
platinum 900, size 5.25 adjustable, circa 1950s, with an appraisal from "Wm. J. Vossell Company" dated 1954
Diamond, Sapphire, Platinum
Classic Diamond Band Ring in 900 Platinum
Located in Bloomington, MN
Classic Diamond Band Ring in 900 Platinum Crafted in 900 platinum, this diamond band ring features
Diamond, Platinum
GIA F1/Minor 1.54ct Top Quality Colombia Emerald Pendant in Platinum
Located in Singapore, SG
precious, timeless, and cherished for generations. Colombian Emerald Pendant in Platinum 900 Features
Emerald, Platinum
$1,024Sale Price|20% Off
Striking Emerald & Diamond Ring in 900 Platinum
Located in Bloomington, MN
Striking Emerald & Diamond Ring in 900 Platinum Crafted in 900 platinum, this ring centers on
Diamond, Emerald, Platinum
Fancy brown 6.123 ct Princess Cut Diamond with Trillion Diamond in Platinum
Located in Zurich, Zollstrasse
ring is stunning from every angle. The handmade Platinum 900 setting displays a 6.123 fancy brown
Diamond, Platinum
Platinum Emerald Diamond Ring - 900 Pear 2.62ctw
Located in Greensboro, NC
Size: 6 1/2 Sizing Fee: Up 1/2 a size for $40 or Down 1/2 a size for $40 Metal Content: 900
Diamond, Emerald, Platinum
1940s 1.20 Carat Diamond and Platinum Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
shank. The ring is hallmarked to the interior with the marks for platinum (900 plat 100 irid). This
Diamond, Platinum
$7,800Sale Price|20% Off
SOUTH SEAS Gia Certified Pearl Cocktail Ring In Platinum With 1.71 Ctw Diamonds
Located in Miami, FL
design in solid platinum .900/.999 platinum with high polished finish. It is embellished with a great
Diamond, Pearl, White Diamond, South Sea Pearl, Platinum
1.84 Carat Oval Cut Dark Blue Sapphire and Diamond Ring
Located in Miami, FL
Illusion Style Ring Details: Item Type: Cocktail Ring Metal: Platinum 900 Size: 6.5 (adjustable) Weight
Diamond, Sapphire, Blue Sapphire, Platinum
$4,200Sale Price|20% Off
GIA CERTIFIED Cocktail Ring In Platinum With 15.40 Ctw Sapphire And Diamonds
Located in Miami, FL
crafted with substantial weight, in solid platinum .900/.999 platinum with high polished finish. The ring
Diamond, Sapphire, White Diamond, Star Sapphire, Platinum
Vintage 900 Platinum Black Onyx Rectangle Signet Ring
Located in Vilnius, Vilniaus apskr.
This is a vintage signet ring crafted in 900 platinum. Circa 1980. The piece features rectangle
Onyx, Platinum
Platinum Sapphire & Diamond Engagement Ring - 900 Round .77ctw
Located in Greensboro, NC
Size: 5 Sizing Fee: Up 2 sizes for $50 Metal Content: 900 Platinum Stone Information Natural
Diamond, Sapphire, Platinum
Isle of Man 1989 Persian Cat Elizabeth II Coin 1/5 Crown Gold Pendant Top
Located in Kobe, Hyogo
), Sapphire ( total 2.23ct ) Metal: Coin - Platinum 1000, Pendant top Setting Metal - Platinum 900 Pendant Top
Platinum
Platinum Emerald Diamond Ring - 900 Emerald Cut 1.23ctw GIA
Located in Greensboro, NC
Size: 9 Metal Content: 900 Plat 100 Irid Stone Information Natural Emerald Treatment: Oiling
Diamond, Emerald, Platinum
Art-Deco c1930's 18K Rose Gold & Old-European Cut Diamond Cluster Flower Ring
Located in MELBOURNE, AU
style pierced top setting is of gorgeous timeless design, crafted in platinum 900, it measures 13mm
Diamond, Rose Gold, 18k Gold
2.61 Carat European Cut M-N/VS1 Diamond Vintage Art Deco Engagement Ring
Located in Miami, FL
: Engagement Ring Metal: Platinum 900 Size: 7.75 (adjustable) Weight: 3.40 Grams Finish: Milgrain, Polished
Diamond, Platinum
Platinum Ruby & Diamond Ring - 900 Emerald Cut 4.39ctw AGL
Located in Greensboro, NC
Size: 4 1/2 Note: Please contact us for a resizing quote. Metal Content: 900 Platinum Stone
Diamond, Ruby, Platinum
Genuine Alexandrite Ring. 900 Platinum setting round Natural ALEXANDRITE ring
Located in Port Charlotte, FL
different light. 900 Platinum Diamond X Crossover Design Condition: little to no wear. hallmarked inside
Platinum
Genuine Alexandrite Ring. 900 Platinum setting round Natural ALEXANDRITE ring
Located in Port Charlotte, FL
different light. 900 Platinum Diamond X Crossover Design Condition: little to no wear. hallmarked inside
Platinum
Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18 Carat
Located in Greensboro, NC
Surprise the love of your life with her dream ring! Crafted in heirloom-quality 900 platinum, this
Diamond, Platinum
Vintage 1948 Tiffany & Co. 900 Platinum Iridium Faceted Wedding Band Ring
By Tiffany & Co.
Located in Houston, TX
Brand: Tiffany & Co. Gender: Ladies Metal Type: 900 Platinum Ring Size: 5 Width: 2.05 mm
Platinum
Investment GIA 4.75ct Black Opal Diamond Halo Ring - .900 Platinum - Rare
Located in Media, PA
-crafted .900 Platinum mounting, weighing a substantial 6.01 grams. Gemstone Details Center Stone: Natural
Diamond, Opal, Black Opal, Platinum
Platinum Diamond Link Bracelet 7" - 900 & 14k Round 2.00ctw Latticework Milgrain
Located in Greensboro, NC
Metal Content: 900 Platinum & 14k White Gold (some link connections) Stone Information Natural
Diamond, Platinum
0.10ctw Diamond Openwork Ring 900 Platinum Size 5 Band Wedding Stackable
Located in McLeansville, NC
Clarity - VS2 - SI1 Metal: 900 Platinum Weight: 2.1 Grams Stamps: 10% Irid Plat Face Height: 4.8 mm
Diamond, Platinum
Aquamarin Diamond Bracelet 6.29 Carat 900 Platinum ALG Certified "Ocean Blue"
Located in München, DE
bracelet is crafted in 900 platinum, with the clasp and safety latch made in 850 platinum for secure wear
Diamond, Aquamarine, Platinum
$6,916Sale Price|20% Off
Modern Cat’s-Eye Alexandrite & Diamond Ring in 900 Platinum- GIA 2235838014
Located in Bloomington, MN
Modern Cat’s-Eye Alexandrite & Diamond Ring in 900 Platinum- GIA 2235838014 Crafted in 900
Alexandrite, Diamond, Cat’s Eye, Platinum, Silver, Enamel
1.00ctw G-H SI1 Diamond Set in Iridium 900 Platinum Ring
Located in Sewickley, PA
This striking vintage diamond ring is crafted in luxurious iridium platinum, a rare and enduring
Diamond, Platinum
Sunita Nahata Tanzanite 2.37ct. Fancy Ring in 900 Platinum with Diamond.
By Sunita Nahata
Located in Hong Kong, HK
rich and regal look. Classic Tanzanite Ring in 900 Platinum with Diamond. Tanzanite: 2.370 carat
Diamond, Tanzanite, Platinum
0.30ct Round Diamond Solitaire Engagement Ring 900 Platinum Size 7 COA Japan
Located in McLeansville, NC
Color - F Clarity - VVS2 Metal: 900 Platinum Weight: 6.2 Grams Stamps: pt 900 Face Height: 7.7 mm
Diamond, Platinum
$1,645
W 0.28 in D 0.16 in L 0.95 in
Paraiba Tourmaline Brilliant Pendant with Chain 900 Platinum blue Lagune Colors
Located in Viena, Viena
, dimensions of the pendant approx. 24 x 7 x 4 mm, worked in 900 white gold, with matching chain in 44.5 cm
Diamond, Tourmaline, Paraiba, Platinum
$7,045
W 1.3 in L 2.56 in
Edwardian 900 Platinum Green Paste Diamond Bow Floral Motif Drop Pendant Brooch
Located in Vilnius, Vilniaus apskr.
This is an Edwardian bow floral motif drop pendant-brooch. It is crafted in 900 platinum. The piece
Diamond, Platinum
Platinum Diamond Vintage Wedding Band - 900 Single Cut .35ctw Seven-Stone Ring
Located in Greensboro, NC
Size: 5 3/4 Sizing Fee: Up 2 sizes for $40 or Down 1 size for $30 Era: Vintage Metal Content: 900
Diamond, Platinum
$13,971Sale Price|20% Off
W 0.48 in D 0.28 in L 0.99 in
Saphire Brilliant Earrings 900 Platinum orange-pink 7.14 1.14ct incredible Color
Located in Viena, Viena
. 8.50 grams in total, made of 900 platinum, in mint condition, with certificate from gemmolog
Diamond, Sapphire, Padparadscha Sapphire , Platinum
$5,300
W 0.54 in L 1.16 in
Cathy Waterman Diamond Drop Earrings 900 Platinum 22k Gold Hook Posts Pierced
By Cathy Waterman
Located in McLeansville, NC
: 900 Platinum, 22k Yellow Gold Weight: 5.7 Grams Stamps: 900 PT, 22k Closure: Hook Posts Measurements
Diamond, 22k Gold, Platinum
Platinum Diamond Vintage Engagement Ring, 900 Round Cut 1.18ctw
Located in Greensboro, NC
"Surprise the love of your life with her dream ring! Crafted in heirloom-quality 900 platinum, this
Japan Germany Lab Certified Emerald & Diamond Platinum PT 900 'Big Spread' Ring
By Malpani Jewels
Located in Hung Hom, HK
: Color: D Clarity: VVS The ring is made in Platinum PT 900 and is hand made in Japan Ring size can be
Diamond, White Diamond, Emerald, Platinum
Kunzite Diamond 5.45 Carats Extravagant Cocktail Ring 900 Platinum / 18 Kt Gold
Located in München, DE
, set flush in slightly elevated square prongs. The ring is crafted in 900 platinum (alloy is stamped
Diamond, Kunzite, Platinum, Gold
$5,588Sale Price|20% Off
EDWARDIAN 1905 Cocktail Ring In Platinum With 14.16 Ctw Turquoise & Diamonds
Located in Miami, FL
solid .900/.999 platinum and 18 karats white gold, with high polished finish. The ring is beautifully
Diamond, Turquoise, White Diamond, Gold, White Gold, Platinum, 18k Gold
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.