GIA Certified 8 Carat White Opal With Orange Garnet & Aquamarine Halo Ring
By Gad & Co.
Located in Miami, FL
The center features a bezel set 8 carat cabochon-cut white translucent opal with GIA certification. The opal is paired with a halo of 10 round-cut aquamarine stones and 2 oval-cut or...
Aquamarine, Garnet, Opal, Gold, 18k Gold, Yellow Gold
GIA White Diamond Oval Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
White Diamond, White Gold
GIA certified 11.75 Carat Pear shape Sapphire and Diamond pendant
By GEMME
Located in New York, NY
Centered upon a beautiful Pear shape Sapphire weighing 11.75 Carats that is accompanied by a GIA certificate. Surrounded by Round Diamonds weighing 1.05 Carats.
Diamond, Sapphire
Loose Diamond - Round Brilliant .59ct GIA I VS2 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 0.59ct Cut: Round Brilliant Color: I Clarity: VS2 Size: 5.31mm X 5.37mm X 3.34mm Certified by: GIA Report Number: 6233700545 Total Carat...
Diamond
GIA 0.50 Carat Each Round Diamond Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
Diamond, White Gold
GIA 3 Carat Fancy Yellow Radiant Diamond Ring in 18K Yellow and White Gold
Located in Los Angeles, CA
Ring size 6.75. Comes with GIA certificate.
Diamond, White Gold
GIA Sri Lanka Blue Sapphire and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Handmade in platinum. Ring size 6.5. GIA certificate included.
White Diamond, Blue Sapphire, Platinum
GIA Yellow Radiant, Oval and Pear Shape Diamond Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
Diamond, Yellow Gold
GIA Sri Lanka Blue Sapphire and White Diamond Ring in 18K White Gold
Located in Los Angeles, CA
Handmade in 18k white gold. Ring size 7. GIA certificate included.
White Diamond, Blue Sapphire, White Gold
GIA 0.70 Carat Each Oval Diamond Eternity Band in 18K White Gold
Located in Los Angeles, CA
Handmade in 18k white gold. Ring size 6. GIA certificates included.
Diamond, White Gold
GIA 5 Carat Heart Fancy Yellow Ring in 18K Yellow and White Gold
Located in Los Angeles, CA
Ring size 6.75. Comes with GIA certificate.
White Gold, Yellow Gold
Stunning 18K White Gold Natural Diamonds Stud Earrings w/1.12 Carat - GIA Cert
Located in רמת גן, IL
Crafted in luxurious 18K white gold, these stud earrings offer a unique and modern design that is sure to be admired for years to come. Accompanied by GIA certification for authentic...
Diamond, 18k Gold, White Gold
GIA Emerald Cut White Diamond Cross Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Length is 18". All stones come with GIA certificates.
White Diamond, White Gold
Peter Suchy GIA 5.16 Carat Sapphire Platinum Gold Three Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
Each sapphire has it own GIA certificate with all of them being certified as natural, no heat.
Sapphire, Yellow Sapphire, Purple Sapphire, Platinum, Gold, 18k Gold, Ye...
GIA 1 Carat Each Heart Diamond Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Handmade in 18k white gold. Ring size 7. GIA certificates included.
Diamond, White Gold
GIA Asscher Cut Diamond Dangle Earrings in 18K White Gold
Located in Los Angeles, CA
Total of 8 stones, each one weighs 0.70 ct. All stones have a GIA certificate. Handmade in 18k white gold. Lever back setting.
Diamond, White Gold
GIA Light Pink Brown Diamond Round Pendant Necklace in 14k Rose Gold
Located in Los Angeles, CA
Handmade in 14k rose gold. Length is 18". GIA certificate included.
Brown Diamond, Rose Gold
GIA White Diamond Emerald Cut Eternity Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
White Diamond, Yellow Gold
GIA Fancy Brownish Greenish Yellow Diamond Ring in 14K 2 Tone Gold
Located in Los Angeles, CA
Handmade in 14k yellow and white gold. Ring size 7. GIA certificate included.
Yellow Diamond
GIA White Diamond Emerald Cut Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Total of 18 stones. All GIA certificates included.
White Diamond, Emerald, White Gold
GIA Trillion Cut Diamond Snake Ring in 18K Yellow Gold & Black Rhodium
Located in Los Angeles, CA
Ring size is 5.5 - 6. GIA certificate included.
Diamond, Yellow Gold, Rhodium
$1,596Sale Price|20% Off
GIA Certified 0.62CT Round Brilliant Fancy Grey Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: 53328 Stone Shape: Round Diamond Weight: 0.62CT Clarity: SI1 Color: Very Light Grey Cut: Excellent Measurements: 5.43 - 5.52 x 3.18mm Symmetry: None Polish:...
Yellow Diamond
GIA Certified 1.87 Carat Total Round Diamond Three-Stone Engagement Ring
Located in Santa Monica, CA
- Center Diamond: 1.03ct round brilliant cut natural diamond, VVS1 clarity, G color with GIA certificate - Side Diamonds: two 0.42ct round brilliant cut natural diamonds, VVS2 clar...
Diamond, Platinum
GIA 1 Carat Each White Oval Diamond Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Each stone is 1 ct. and comes with a GIA certificate. Ring size 6.75.
Diamond, White Gold
GIA White Diamond and Emerald Cross Pendant Necklace in 18K Gold
Located in Los Angeles, CA
The white diamonds come with GIA certificates.
White Diamond, Emerald, 18k Gold
GIA Emerald Cut White Diamond Cross in 18K White Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
White Diamond, White Gold
GIA 8 Carat No Heat Sri Lanka Blue Sapphire Octagon & Trapezoid Diamond Ring
Located in Los Angeles, CA
Ring size 6.5. Comes with GIA certificate.
Diamond, Blue Sapphire
GIA White Diamond Oval Step Cut Graduated Necklace in 18K Yellow Gold
Located in Los Angeles, CA
All stones come with a GIA certificate. Handmade in 18k yellow gold.
White Diamond, Yellow Gold
GIA Sri Lanka No Heat 20.50 Carat Purple Sapphire Ring in 18K White Gold
Located in Los Angeles, CA
Ring size 7.25. Comes with GIA certificate.
Purple Sapphire, Sapphire, White Gold
$10,000Sale Price|20% Off
Oval Yellow Diamond Earrings 3.13 Carats GIA Certified Platinum / 18 KYG
Located in Beverly Hills, CA
Oval Yellow Diamond Stud Earrings 3.13 carats GIA Cerified Oval Yellow Diamond weighs 1.62 carats Y-Z Color SI1 Clarity With GIA Certificate # 2225254200 Oval Yellow Diamond weig...
Yellow Diamond, White Diamond, Diamond, Platinum, Yellow Gold, 18k Gold
$6,320Sale Price|20% Off
Platinum GIA Certified Emerald Baguette Diamond Ring
Located in Houston, TX
The GIA certificate number is 2125281009. The ring also features 43 channel set, baguette cut diamonds weighing 1.23 carats.
Diamond, Emerald, Platinum
GIA Unheated Burma Star Ruby and White Diamond Cocktail Ring
Located in Los Angeles, CA
Handmade in 18k yellow gold. Ring size 6.75. GIA certificate included.
White Diamond, Ruby, Star Ruby, 18k Gold
GIA 0.50 Carat Each Pear Shape Cluster Earrings in 18K White Gold
Located in Los Angeles, CA
Handmade in 18k white gold. Comes with GIA certificates for all stones.
White Gold
Loose Diamond - Round Brilliant 1.13ct GIA E SI1 Solitaire
Located in Greensboro, NC
Date: April 23, 2026 Stone Information Natural Diamond Carat(s): 1.13ct Cut: Round Brilliant Color: E Clarity: SI1 Size: 6.61 - 6.64 X 4.12mm Certified by: GIA Report Number: 16288...
Diamond
Loose Diamond - Emerald Cut 2.01ct GIA E VS2 Solitaire
Located in Greensboro, NC
Date: May 7, 2026 Stone Information Natural Diamond Carat(s): 2.01ct Cut: Emerald Color: E Clarity: VS2 Size: 8.23 X 6.19 X 4.22mm Certified by: GIA Report Number: 2544142070 Tota...
Diamond
Loose Emerald- Emerald Cut 2.14ct GIA Colombia Solitaire
Located in Greensboro, NC
Stone Information Natural Emerald Treatment: Oiling Carat(s): 2.14ct Cut: Emerald Color: Green Origin: Colombia Certified by: GIA Report Number: 6233679471 Total Carats: 2.14ct Me...
Emerald
GIA Certified 14.68 Star Ruby Diamond Platinum Dangle Earrings
Located in Stamford, CT
Vintage 1940's ruby and diamond dangle earrings. Two GIA certified round rubies set in platinum with 2 pear shaped diamonds at top and 22 round and step baguette diamonds. 2 pear s...
Diamond, Ruby, Platinum
GIA Certified 11.90 Carat Emeralds Sapphire Ruby Diamond Gold Pendant Brooch
Located in Stamford, CT
The oval center emerald which has a weight of 3.00cts is surrounded by oval rubies, pear shaped sapphires and round diamonds. GIA certified as natural, no heat. See our matching dang...
Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 14k Gold, Yellow ...
GIA Orange and Yellow Sphalerite Octagon and Diamond Cocktail Ring in 18k
Located in Los Angeles, CA
Handmade in 18k yellow gold, ring size 6.5. GIA certificate included.
Diamond, 18k Gold
GIA White Diamond Round Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
White Diamond, White Gold
GIA Multi-Shape White Diamond Bracelet in 18K White Gold
Located in Los Angeles, CA
Length is 7". Comes with GIA certificates for each stone.
White Diamond, White Gold
GIA Unheated Pink Sapphire and White Diamond Ring in 18K Yellow Gold & Platinum
Located in Los Angeles, CA
Handmade in 18k yellow gold and platinum. Ring size 6.5. GIA certificate is included.
White Diamond, Pink Sapphire, Yellow Gold, Platinum
GIA 1 Carat Each Asscher Cut Diamond Eternity Band in 18K White Gold
Located in Los Angeles, CA
Handmade in 18k white gold. Ring size 6.5. GIA certificates included.
Diamond, White Gold
GIA Certified 12.38 Carat Paraiba Tourmaline Diamond White and Yellow Gold Ring
By Shimon's Creations
Located in New York, NY
1 Natural Paraiba Tourmaline, Yellowish Green Gemstone: 8.96 Carats 20 White Pear Cut Diamonds: 2.63 Carats 37 White Round Diamonds: 0.79 Carats Metal: 18K White and Yellow Gold, 11....
Diamond, Tourmaline, Paraiba, 18k Gold, White Gold, Yellow Gold
GIA 8.30 Carat Fancy Color Pear Shaped Diamond Pendant
Located in New York, NY
Set in double halo pendant hanging from 16 inch diamonds by the inch chain. Comes with GIA certificate
Diamond, Yellow Diamond, Brown Diamond, 18k Gold, White Gold
GIA 0.90 Carat Each Round Diamond Bezel Links Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Length is 7". Each stone has a GIA certificate.
Diamond, Yellow Gold
$19,200Sale Price|20% Off
14K Gold Pearl and Diamond Stud Earrings, GIA Certified, Vintage
Located in New York, NY
These earrings come with a GIA certificate, ensuring their exceptional quality.
Diamond, Natural Pearl, 14k Gold
GIA Certified 24.86 Carat Paraiba Tourmaline Round Diamond White Gold Earrings
By Shimon's Creations
Located in New York, NY
1 Paraiba Tourmaline, Greenish Blue, Mozambique Gemstone: 11.91 Carats 1 Paraiba Tourmaline, Greenish Blue, Mozambique Gemstone: 10.08 Carats 27 White Round Diamonds: 2.87 Carats ...
Diamond, Tourmaline, Paraiba, 18k Gold, White Gold
GIA White Diamond Emerald Cut 2 Carats Each Dangle Earrings in 18K
Located in Los Angeles, CA
Handmade in 18k yellow and black rhodium gold. GIA certificates are included.
White Diamond, 18k Gold
GIA Emerald Cut White Diamond Cross Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Length is 18". All stones come with GIA certificates.
White Diamond, White Gold
GIA 0.50 Carat Each Heart Diamond Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Length is 7". All stones come with GIA certificates.
Diamond, White Gold
Tiffany & Co.Vivid Yellow Diamond in 18K Yellow Gold Ring W/Certificate
By Tiffany & Co.
Located in Great Neck Plaza, NY
It comes with a Tiffany appraisal and a GIA certificate.
Diamond, 18k Gold
GIA J VVS2 White Diamond Oval Solitaire Ring in 18K White Gold
Located in Los Angeles, CA
Handmade in 18k white gold. GIA certificate included.
White Diamond, White Gold
GIA 1 Carat Each White Diamond Round Eternity Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
All stones come with a GIA certificate. Each stone is 1.00 ct.
White Diamond, Yellow Gold
GIA White Diamond Cushion Bezel with Bars Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Length is 7". Comes with GIA certificates.
White Diamond, Yellow Gold
GIA White Diamond Heart Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Total of 72 stones, each stone is 0.50 to 0.60 ct. All stones come with GIA certificates. Handmade in 18k white gold.
White Diamond, White Gold
GIA Multi Shape Diamond Bezel Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate. Ring size 6.25.
Diamond, Yellow Gold
GIA Certified 1.25 Carat Emerald-Cut Burma Ruby Three-Stone Diamond Ring
Located in New York, NY
Total Weight: 4.29 grams. Ring Size US 5.75. GIA Certificate Available.
Diamond, Ruby, Platinum
GIA Oval 0.30 Carat Each Diamond Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Each stone comes with a GIA certificate.
Diamond, White Gold
GIA 1.50 Carat Each White Oval Diamond Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Each stone weighs 1.50 ct. and comes with a GIA certificate. Total of 27 stones. Length is 7".
Diamond, White 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.