Skip to main content

Used Gia Certified Diamonds

to
3,485
18,420
1,459
20,676
10,002
2,960
908
798
613
348
347
213
165
149
142
101
99
93
92
78
75
65
61
50
43
13
13
9
5
4
3
3
3
2
2
1
1
1
1
1
1,114
664
604
427
422
Sort By
GIA Certified 2.79 Carat Fancy Colored Radiant Cut Diamond 18k Gold Ring
By Gad Co.
Located in Miami, FL
GIA Certified diamond ring. Crafted in two-toned 18K yellow and white gold, this ring boasts a GIA
Category

2010s North American Modern Used Gia Certified Diamonds

Materials

Diamond, 18k Gold

Harakh GIA Certified 0.54Carat F Color VS2 Clarity 18 KT Diamond Stud Earrings
By Harakh
Located in New York, NY
These classic GIA-certified diamond studs showcase a pair of perfectly matched diamonds weighing a
Category

2010s Indian Contemporary Used Gia Certified Diamonds

Materials

Diamond, Rose Gold, 18k Gold

GIA Certified 1.01 Carat Round Diamond in Thin, Minimal Low Setting Platinum
By FERRUCCI
Located in New York, NY
GIA Certified 1.01 Round diamond, G color, VS2 clarity with Triple Excellent Specs, in a high
Category

2010s American Modern Used Gia Certified Diamonds

Materials

Diamond, Platinum

GIA Certified 1.06 Carat Round Diamond in Thin, Minimal Low Setting Platinum
By FERRUCCI
Located in New York, NY
GIA Certified 1.06 Round diamond, G color, VVS2 clarity with Triple Excellent Specs, in a high
Category

2010s American Modern Used Gia Certified Diamonds

Materials

Diamond, Platinum

GIA Certified 2.02 Carat Cushion Diamond Thin Low Setting in Platinum 950
By FERRUCCI
Located in New York, NY
GIA Certified 2.02 carat Cushion diamond, H color, VS2 clarity, Very good and Good specs, set in
Category

2010s American Modern Used Gia Certified Diamonds

Materials

Diamond, Platinum

GIA 2.01 Carat Pave Entwined Nature Band Emerald Diamond Ring
By EMD Diamonds
Located in New York, NY
, featuring a center stone of emerald H VS1 2.01 GIA-certified diamond. The bright and vibrant hue of the
Category

21st Century and Contemporary American Contemporary Used Gia Certified Diamonds

Materials

Diamond, Platinum

NALLY GIA Natural Color Diamond Ring
Located in New York, NY
GIA certified Colored Diamond Ring. This bombe style ring has with a center diamond of 4.28 carat
Category

21st Century and Contemporary American Artist Used Gia Certified Diamonds

Materials

Diamond, Blue Diamond, Brown Diamond, Pink Diamond, 18k Gold

GIA certified Emerald diamond ring 1.01ct VVS2 F engagement ring
Located in Boca Raton, FL
GIA certified diamond engagement ring made with a VVS2 center weighing 1.01 carats and side
Category

21st Century and Contemporary Used Gia Certified Diamonds

GIA Certified Light Pinkish Brown Heart Diamond 2.00 Carat TW Gold Stud Earrings
Located in New York, NY
RareGemWorld's beautiful GIA certified diamond earrings. Mounted in a beautiful 18K Rose and White
Category

21st Century and Contemporary Contemporary Used Gia Certified Diamonds

Materials

Diamond, White Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, White Gold

1.17ct Round diamond halo engagement ring in 18k white gold.
Located in London, GB
1.17ct Round diamond halo engagement ring in 18k white gold. Round diamond solitaire GIA certified
Category

21st Century and Contemporary Used Gia Certified Diamonds

Materials

Diamond, White Gold

GIA Certified 6.53 Carat Fancy Pink-Brown White Diamond Ring in 18K Rose Gold
By Gad Co.
Located in Miami, FL
GIA Certified Diamond Ring in 18K Rose and White Gold. GIA certified natural pink-brown diamond
Category

21st Century and Contemporary North American Art Deco Used Gia Certified Diamonds

Materials

Diamond, Pink Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold

GIA Certified 1.28 Carat Fancy Light Yellow Cushion Cut Diamond Engagement Ring
Located in Los Angeles, CA
Stones- GIA Certified Fancy Light Yellow Cushion Cut Diamond, SI2-SI3-I1 Clarity 1.28 Carats. 81 Round
Category

21st Century and Contemporary American Modern Used Gia Certified Diamonds

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

GIA Certified 0.53 Carat Fancy Intense Yellow SI2 Clarity Diamond
Located in บางรัก, TH
Institute of America) certified diamond has undergone a rigorous and unbiased evaluation by GIA, a highly
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.50 Carat Faint Yellow Green VS2 Clarity Diamond
Located in บางรัก, TH
, measuring around 5 millimeters in diameter. Also, our GIA certified diamond is a diamond that has undergone
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.46 Carat Fancy Light Purplish Pink Diamond
Located in บางรัก, TH
those seeking a refined and affordable diamond with lasting beauty. Also, GIA certified diamond is a
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond, Pink Diamond

GIA Certified 0.55 Carat F Colour IF Clarity Diamond
Located in บางรัก, TH
, GIA certified diamond is that has been graded and authenticated by the Gemological Institute of
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.54 Carat E Colour IF Clarity Diamond
Located in บางรัก, TH
imperfections and seek the highest standard of quality. Also, GIA certified diamond is that has been graded and
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.50 Carat F Colour IF Clarity Diamond
Located in บางรัก, TH
quality. Also, GIA certified diamond is that has been graded and authenticated by the Gemological
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.52 Carat F Colour IF Clarity Diamond
Located in บางรัก, TH
quality. Also, GIA certified diamond is that has been graded and authenticated by the Gemological
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.50 Carat G Colour IF Clarity Diamond
Located in บางรัก, TH
imperfections and seek the highest standard of quality. Also, GIA certified diamond is that has been graded and
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.60 Carat D Colour IF Clarity Diamond
Located in บางรัก, TH
visible imperfections and seek the highest standard of quality. Also, GIA certified diamond is that has
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.55 Carat G Colour VVS1 Clarity Diamond
Located in บางรัก, TH
quality and characteristics. A GIA certified diamond guarantees transparency, authenticity, and value
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.50 Carat E Colour IF Clarity Diamond
Located in บางรัก, TH
visible imperfections and seek the highest standard of quality. Also, GIA certified diamond is that has
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.50 Carat E Colour IF Clarity Diamond
Located in บางรัก, TH
, GIA certified diamond is that has been graded and authenticated by the Gemological Institute of
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.54 Carat E Colour VVS1 Clarity Diamond
Located in บางรัก, TH
, GIA certified diamond is that has been graded and authenticated by the Gemological Institute of
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

Harakh GIA Certified 0.68 Carat F Color VS2 Clarity 18 KT Diamond Stud Earrings
By Harakh
Located in New York, NY
These classic GIA certified diamond studs showcase a pair of perfectly matched diamonds weighing
Category

2010s Indian Contemporary Used Gia Certified Diamonds

Materials

Diamond, 18k Gold, White Gold

Harakh GIA Certified 0.54 Carat F Color VS2 Clarity 18 KT Diamond Stud Earrings
By Harakh
Located in New York, NY
These classic GIA certified diamond studs showcase a pair of perfectly matched diamonds weighing
Category

2010s Indian Contemporary Used Gia Certified Diamonds

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.50 Carat G Colour VVS1 Clarity Diamond
Located in บางรัก, TH
, GIA certified diamond is that has been graded and authenticated by the Gemological Institute of
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

Exquisite 31.38 ct Graduated GIA Emerald-Cut Diamond Platinum Necklace
By Hakimi s Gem
Located in Chicago, IL
: 31.38 carats -Certified Stones: 17 GIA-certified -Diamond Quality: H color, VS1 clarity -Cut: Emerald
Category

21st Century and Contemporary Modern Used Gia Certified Diamonds

Materials

Diamond, Platinum

GIA Certified 0.70 Carat H Colour VVS1 Clarity Diamond
Located in บางรัก, TH
prestigious choice. Also, GIA certified diamond that has been graded and certified by the Gemological
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat F Colour VVS2 Clarity Diamond
Located in บางรัก, TH
, brilliance, and purity, making it a prestigious and timeless choice. Also, GIA certified diamond that has
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.56 Carat H Colour VVS2 Clarity Diamond
Located in บางรัก, TH
, GIA certified diamond is that has been graded and authenticated by the Gemological Institute of
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat D Colour VS1 Clarity Diamond
Located in บางรัก, TH
affordability, making it a highly desirable and timeless option. Also, GIA certified diamond is that has been
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat E Colour VS2 Clarity Diamond
Located in บางรัก, TH
being more affordable than higher clarity grades like VVS or IF. Also, GIA certified diamond is a
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.74 Carat E Colour VVS1 Clarity Diamond
Located in บางรัก, TH
timeless elegance and exceptional value for their rarity and superior quality. Also, GIA certified diamond
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat E Colour VS1 Clarity Diamond
Located in บางรัก, TH
assessment of its quality and characteristics. A GIA certified diamond guarantees authenticity, transparency
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat E Colour VS1 Clarity Diamond
Located in บางรัก, TH
timeless investment. Also, GIA certified diamond is that has been graded and authenticated by the
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat G Colour IF Clarity Diamond
Located in บางรัก, TH
, symbolizing perfection and timeless beauty. Also, GIA certified diamond is that has been graded and
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat H Colour VVS2 Clarity Diamond
Located in บางรัก, TH
investment for those seeking high clarity and long term beauty. Also, GIA certified diamond is that has been
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

Diamond Engagement Ring Made in Italy, GIA Certified 0.5 Carat Diamond
Located in Camisano Vicentino, VI
The ring is available only made to order. Gia Certified Diamond ring in 18k solid gold made in
Category

2010s Contemporary Used Gia Certified Diamonds

Materials

Diamond, 18k Gold, Rose Gold, White Gold

GIA Certified 0.70 Carat F Colour VS1 Clarity Diamond
Located in บางรัก, TH
them a desirable and timeless investment. Also, GIA certified diamond is that has been graded and
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.73 Carat D Colour VS1 Clarity Diamond
Located in บางรัก, TH
and strong value retention make them a desirable and timeless investment. Also, GIA certified diamond
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat D Colour VS1 Clarity Diamond
Located in บางรัก, TH
assessment of its quality and characteristics. A GIA certified diamond guarantees authenticity, transparency
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.72 Carat G Colour IF Clarity Diamond
Located in บางรัก, TH
clarity and long term value in a diamond. Also, GIA certified diamond is that has been graded and
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat H Colour VVS1 Clarity Diamond
Located in บางรัก, TH
making it a luxurious and lasting investment. Also, GIA certified diamond is has been evaluated and
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat G Colour VVS2 Clarity Diamond
Located in บางรัก, TH
and long-term value, making them a luxurious and timeless investment. Also, GIA certified diamond is
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.72 Carat G Colour VVS1 Clarity Diamond
Located in บางรัก, TH
assessment of its quality and characteristics. A GIA certified diamond guarantees authenticity transparency
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat G Colour VVS1 Clarity Diamond
Located in บางรัก, TH
term value making them a luxurious and timeless investment. Also, GIA certified diamond is that has
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.71 Carat G Colour VVS1 Clarity Diamond
Located in บางรัก, TH
assessment of its quality and characteristics. A GIA certified diamond guarantees authenticity, transparency
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.73 Carat G Colour VVS2 Clarity Diamond
Located in บางรัก, TH
investment. Also, GIA certified diamond is that has been graded and authenticated by the Gemological
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 0.70 Carat G Colour VVS1 Clarity Diamond
Located in บางรัก, TH
. Also, GIA certified diamond is that has been graded and authenticated by the Gemological Institute of
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 1.02 Carat Fancy Light Orangy Pink SI2 Clarity Diamond
Located in บางรัก, TH
collection. Also, GIA Certified diamond is that has been thoroughly evaluated and graded by the Gemological
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

GIA Certified 1.00 Carat Faint Pink VS2 Clarity Diamond
Located in บางรัก, TH
due to its excellent visual appeal and reasonable cost. Also, GIA certified diamond is that has been
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

Dover Jewelry D-VS1 GIA Diamond Pave Split Platinum Engagement Ring
By Dover Jewelry
Located in Miami, FL
prominent bezel set emerald cut GIA certified diamond approx. 1.28 CT, D color, VS1 clarity. Surrounded by a
Category

2010s American Art Deco Used Gia Certified Diamonds

Materials

Diamond, Platinum

GIA Certified 0.71 Carat Fancy Yellow SI1 Clarity Diamond
Located in บางรัก, TH
elongated form of a marquise cut, featuring a rounded end and a pointed end. Also, our GIA certified
Category

2010s Asian Used Gia Certified Diamonds

Materials

Diamond

Emilio Jewelry Gia Certified 38.85 Carat Old Mine Diamond Necklace
By Emilio!
Located in New York, NY
mine cut Gia certified diamond in this necklace layout. Each diamond is Gia Certified. Allow Emilio
Category

21st Century and Contemporary Used Gia Certified Diamonds

Materials

Diamond

Harakh GIA Certified 0.68 Carat F Color VS2 Clarity 18 KT Diamond Stud Earrings
By Harakh
Located in New York, NY
These classic GIA certified diamond studs showcase a pair of perfectly matched diamonds weighing
Category

2010s Indian Contemporary Used Gia Certified Diamonds

Materials

Diamond, 18k Gold, Yellow Gold

  • 1
  • ...
Get Updated with New Arrivals
Save "Used Gia Certified Diamonds", and we’ll notify you when there are new listings in this category.

Used Gia Certified Diamonds For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of used gia certified diamonds. These distinct designs — crafted with great care and often made from Gold, Platinum and 18k Gold — can elevate any look. Find a collection of 2461 vintage versions or 9444 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 18th Century to those produced as recently as the 21st Century. The designs in our inventory of used gia certified diamonds bearing Modern or Contemporary hallmarks are very popular. Antinori Fine Jewels, Roman Malakov and Peter Suchy each produced beautiful examples of these items that are worth considering. Today, if you’re looking for round cut used gia certified diamonds and are unable to find the perfect match, our selection also includes oval cut and cushion cut alternatives. There aren’t many items for men in our collection of used gia certified diamonds, as most of the options available are for women.

How Much are Used Gia Certified Diamonds?

On average, used gia certified diamonds at 1stDibs sell for $22,343, while they’re typically $1 on the low end and $475,940,000 for the highest priced versions of this item.

The Legacy of Diamond in Jewelry Design

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 ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Questions About Used Gia Certified Diamonds
  • 1stDibs ExpertApril 5, 2022
    Yes, Cartier diamonds are indeed GIA certified. The Gemological Institute of America (GIA) works closely with Cartier and certifies everything from the cut and clarity to the color of the gem. Shop a collection of expertly vetted Cartier jewelry from some of the world’s top sellers on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    When a diamond is GIA certified, it means that the stone has undergone the meticulous set of grading procedures that have been established by the Gemological Institute of America. The GIA is not a jeweler — it is an independent, nonprofit group that sets the standards for determining the quality of a diamond.
  • 1stDibs ExpertAugust 17, 2021
    In the United States, diamond rings are certified by an official gemological laboratory known as the Gemological Institute of America. A certified diamond ring means that the diamond has undergone a quality analysis by experts at an institution such as the GIA and these experts have issued a lab report that is indicative of the grading process.
  • 1stDibs ExpertFebruary 13, 2023
    While diamond studs don't need to be GIA-certified to be sold, experts typically recommend that you only purchase diamonds that carry certification from the Gemological Institute of America (GIA) or Authentic Gem Security Lab (AGSL). Certifications bring transparency to the buying process, allowing you to know the level of quality of a diamond before you purchase it. Shop a collection of vintage and modern diamond gemstone earrings from some of the world’s top jewelers on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    Whether Neil Lane diamonds are GIA-certified or not depends on the piece. All of the diamonds featured in rings and other jewelry designs from the Neil Lane Couture collection do carry GIA certification. Pieces made for third-party retailers may not. On 1stDibs, find a collection of Neil Lane jewelry.
  • 1stDibs ExpertAugust 15, 2024
    Many experts believe that buying a GIA-certified diamond is worth it. The Gemological Institute of America (GIA) has a well-established reputation for providing accurate, trustworthy ratings and certifications. A diamond that carries a GIA certification has undergone rigorous examinations and tests to assess its quality, which can make it a good investment. Find a diverse assortment of diamond jewelry on 1stDibs.