GIA Certified Round Brilliant Cut Loose Diamond 0.70ct
Located in Laguna Beach, CA
.70 carat round brilliant cut diamond. GIA graded J color and Si clarity, good cut. GIA grading report 5231672294. Comes with a full GIA grading certificate.
Diamond
Loose Diamond - Oval 1.70ct GIA VVS2 I Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.70ct Cut: Oval Color: I Clarity: VVS2 Size: 9.00mm X 6.64mm X 4.24mm Certified by: GIA Report Number: 2484330116 Total Carats: 1.70ct ...
Diamond
Loose Diamond - Marquise .96ct GIA D I1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 0.96ct Cut: Marquise Color: D Clarity: I1 Size: 9.21mm X 5.26mm X 3.39mm Certified by: GIA Report Number: 5232656300 Total Carats: .96ct...
Diamond
Loose Diamond - Pear 1.50ct GIA J SI2 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.50ct Cut: Pear Color: J Clarity: SI2 Size: 9.99mm X 6.32mm X 4.07mm Certified by: GIA Report Number: 2185662636 Total Carats: 1.50ct ...
Diamond
Loose Diamond - Emerald 1.27ct GIA E VS1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.27ct Cut: Emerald Color: E Clarity: VS1 Size: 8.09mm X 5.66mm X 3.06mm Certified by: GIA Report Number: 2235747835 Total Carats: 1.27c...
Diamond
Loose Diamond - Princess 1.04ct GIA D VVS2 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.04ct Cut: Princess Color: D Clarity: VVS2 Size: 5.63mm X 5.5mm X 4.02mm Certified by: GIA Report Number: 6522053840 Total Carats: 1.04...
Diamond
Loose Diamond Oval .90ct GIA G SI1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 0.90ct Cut: Oval Color: G Clarity: SI1 Certified by: GIA Report Number: 7276858773 Total Carats: .90ct Includes GIA Certification Condi...
Diamond
GIA Certified Round Brilliant Cut Loose Diamond 0.73ct
Located in Laguna Beach, CA
0.73 carat round brilliant cut diamond. GIA grading report number 2201653724. The color grade is I, and the clarity is Si2. The diamond faces up very brilliantly, 56% table facet. V...
Diamond
Loose Diamond Marquise 1.95ct GIA E SI2 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.95ct Cut: Marquise Color: E Clarity: SI2 Certified by: GIA Report Number: 6237701367 Total Carats: 1.95ct Measurements Includes GIA ...
Diamond
Loose Diamond Pear 3.00ct GIA J SI1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 3.00ct Cut: Pear Color: J Clarity: SI1 Certified by: GIA Report Number: 2239292617 Total Carats: 3.00ct Measurements Includes GIA Cert...
Diamond
Loose Diamond Oval 1.20ct GIA F SI1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.20ct Cut: Oval Color: F Clarity: SI1 Certified by: GIA Report Number: 5526891503 Total Carats: 1.20ct Measurements Includes GIA Cert...
Diamond
GIA Certified Round Brilliant Cut Loose Diamond 1.00ct
Located in Laguna Beach, CA
1.00 carat round brilliant cut diamond. GIA graded E color, i3 clarity. The GIA report number is 2239388857. They were overly harsh on the clarity grade. Nothing can be seen with the...
Diamond
GIA Certified Round Brilliant Cut Loose Diamond 1.78ct
Located in Laguna Beach, CA
GIA graded 1.78 carat round brilliant cut diamond. M color, slightly yellow. The clarity is i1 with an inclusion well hidden under the crown facets. The diamond faces up very brillia...
Diamond
GIA Certified Oval Brilliant Cut Loose Diamond 1.18ct
Located in Laguna Beach, CA
Attractive oval brilliant cut diamond, 1.18 carats. GIA graded G color, VS2 clarity. GIA report number 2231308153. Comes with a full grading report.
Diamond
Loose Diamond - Marquise 1.01ct GIA M SI1 Solitaire
Located in Greensboro, NC
Carat(s): 1.01ct Cut: Marquise Color: M Clarity: SI1 Certified by: GIA Report Number: 6237526728 Condition: New
Diamond
Loose Diamond - Oval 1.51ct GIA G SI2 Solitaire
Located in Greensboro, NC
Carat(s): 1.51ct Cut: Oval Color: G Clarity: SI2 Certified by: GIA Report Number: 2517010713 Condition: New
Diamond
Loose Diamond - Princess .70ct GIA I SI1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): .70ct Cut: Princess Color: I Clarity: SI1 Size (mm): 4.83 x 4.76 x 3.63 Certified by: GIA Report Number: 6224593469 Condition: New witho...
Diamond
Loose Diamond - Cushion 1.62ct GIA D SI1 Solitaire
Located in Greensboro, NC
Carat(s): 1.62ct Cut: Cushion Color: D Clarity: SI1 Certified by: GIA Report Number: 5211180339 Condition: New
Diamond
Loose Diamond - Emerald 1.15ct GIA D VS2 Solitaire
Located in Greensboro, NC
Carat(s): 1.15ct Cut: Emerald Color: D Clarity: VS2 Certified by: GIA Report Number: 8266997 Condition: New
Diamond
GIA Certified Round Brilliant Cut Loose Diamond 1.19ct
Located in Laguna Beach, CA
Round brilliant cut, 1.19 carat. GIA graded J color, Vs1 clarity, good symmetry. 57% table size is very good for brilliance. Faces up very attractive and brilliant. GIA lab gradin...
Diamond
Loose Diamond - Marquise 1.50ct GIA J SI2 Solitaire
Located in Greensboro, NC
Carat(s): 1.50ct Cut: Marquise Color: J Clarity: SI2 Certified by: GIA Report Number: 2195548337 Condition: New
Diamond
Loose Diamond - Oval 1.01ct GIA I SI1 Solitaire
Located in Greensboro, NC
Carat(s): 1.01ct Cut: Oval Color: I Clarity: SI1 Certified by: GIA Report Number: 6305044151 Condition: New
Diamond
Loose Diamond - Princess 2.21ct GIA I I1 Solitaire
Located in Greensboro, NC
Carat(s): 2.21ct Cut: Princess Color: I Clarity: I1 Certified by: GIA Report Number: 7235115815 Condition: New
Diamond
Loose Diamond - Princess .63ct GIA E SI1 Solitaire
Located in Greensboro, NC
Carat: .63ct Cut: Princess Color: E Clarity: SI1 Certified by: GIA Report Number: 5221760139 Condition: New
Diamond
Loose Diamond - Lozenge 4.51ct GIA J SI2 Solitaire
Located in Greensboro, NC
Carat: 4.51ct Cut: Lozenge Color: J Clarity: SI2 Certified by: GIA Report Number: 2225721834 Condition: New We have been dealing in fine new, vintage, antique, and estate jewelry...
Diamond
Loose Diamond - Round Brilliant 3.03ct GIA I VS2 Solitaire
Located in Greensboro, NC
Stone Information Diamond Carat(s): 2.05ct Cut: Round Brilliant Color: I Clarity: SI1 Size: 8.08 - 8.12 X 5.05mm Certified by: GIA Report Number: 6541276755 Total Carats: 2.05ct M...
Diamond
GIA Certified Square Modified Brilliant Cut Loose Diamond 1.51ct
Located in Laguna Beach, CA
Square modified brilliant cut diamond (princess cut). GIA graded J color, Si2 clarity. The diamond is very brilliant and attractive. GIA grading report number is 2221756667. Comes w...
Diamond
Loose Diamond - Round Brilliant 1.50ct GIA I SI2 Solitaire
Located in Greensboro, NC
Stone Information Diamond Carat(s): 1.50ct Cut: Round Brilliant Color: I Clarity: SI2 Size: 7.17 - 7.26 X 4.60mm Certified by: GIA Report Number: 2546242229 Total Carats: 1.50ct M...
Diamond
Loose Diamond - Round Brilliant 2.00ct GIA H I1 Solitaire
Located in Greensboro, NC
Stone Information Diamond Carat(s): 2.00ct Cut: Round Brilliant Color: H Clarity: I1 Size: 8.01 - 8.05 X 4.97mm Certified by: GIA Report Number: 2534954450 Total Carats: 2.00ct Me...
Diamond
Loose Diamond - Round Brilliant 1.70ct GIA I SI1 Solitaire
Located in Greensboro, NC
Stone Information Diamond Carat(s): 1.70ct Cut: Round Brilliant Color: I Clarity: SI1 Size: 7.37 - 7.44 X 4.80mm Certified by: GIA Report Number: 2317729897 Total Carats: 1.70ct M...
Diamond
Loose Diamond - Round Brilliant 3.03ct GIA I VS2 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 3.03ct Cut: Round Brilliant Color: I Clarity: VS2 Size: 9.26 - 9.30 X 5.75mm Certified by: GIA Report Number: 7396764339 Total Carats: 3...
Diamond
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 Diamond - Round Brilliant .74ct GIA E SI1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 0.74ct Cut: Round Brilliant Color: E Clarity: SI1 Size: 5.86 - 5.88 X 3.57mm Certified by: GIA Report Number: 2235908045 Total Carats: ....
Diamond
Loose Diamond - Round Brilliant .39ct GIA I SI1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 0.39ct Cut: Round Brilliant Color: I Clarity: SI1 Size: 4.72 X 4.77 X 2.92mm Certified by: GIA Report Number: 1236897442 Total Carats: ....
Diamond
Loose Diamond - Round Brilliant 1.72ct GIA G VVS2 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.72ct Cut: Round Brilliant Color: G Clarity: VVS2 Size: 7.76 - 7.84 X 4.69mm Certified by: GIA Report Number: 2231902619 Total Carats: ...
Diamond
GIA Certified Round Brilliant Cut Loose Diamond 1.01 ct
Located in Laguna Beach, CA
Loose 1.01 carat round brilliant cut diamond. GIA graded G color, Si2 clarity, Very Good cut grade.
Diamond
Loose Diamond - Round Brilliant 1.22ctw GIA D I1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.22ct Cut: Round Brilliant Color: D Clarity: I1 Size: 6.75 - 6.78mm X 4.27mm Certified by: GIA Report Number: 2231749894 Total Carats: ...
Diamond
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 Certified 0.93 Carat Round Brilliant Cut Loose Diamond
Located in Laguna Beach, CA
0.93ct RBC GIA i color/VVS1 Clarity, VG cut Diamond 0.93 carat round brilliant cut diamond. GIA graded I color, VVs1 clarity, Very good cut grade. The GIA report number is 6234001843...
Diamond
Loose Diamond - Round Brilliant .59ct GIA G I1 Solitaire
Located in Greensboro, NC
Carat(s): .59ct Cut: Round Brilliant Color: G Clarity: I1 Certified by: GIA Report Number: 2235504561 Condition: New
Diamond
Loose Diamond - Oval .80ct GIA F VVS2 Solitaire GIA
Located in Greensboro, NC
Carat(s): 0.80ct Cut: Oval Color: F Clarity: VVS2 Certified by: GIA Report Number: 3405155275 Condition: New
Diamond
Loose Diamond - Round Brilliant 1.01ct GIA E VS1 Solitaire
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): 1.01ct Cut: Round Brilliant Color: E Clarity: VS1 Certified by: GIA Report Number: 10806778 Total Carats: 1.01ct Measurements Conditio...
Diamond
MARKDOWN, 1.75 Carat Round Cut Fancy Color Loose Diamond
Located in Great Neck Plaza, NY
1.75 Carats round loose natural diamond Natural Fancy Dark Greenish Yellow Brown, I3 *Free shipping within the US
Diamond, 14k Gold, White Gold
Loose Diamond - Round Brilliant 1.15ct GIA E VS2 Solitaire
Located in Greensboro, NC
Carat(s): 1.15ct Cut: Round Brilliant Color: E Clarity: VS2 Certified by: GIA Report Number: 5231356336 Condition: New
Diamond
Loose Diamond - Round Brilliant 1.01ct GIA F VS1 Solitaire
Located in Greensboro, NC
Carat(s): 1.01ct Cut: Round Brilliant Color: F Clarity: VS1 Certified by: GIA Report Number: 6237308973 Condition: New
Diamond
Loose Diamond - Round Brilliant 1.19ct GIA G SI1 Solitaire
Located in Greensboro, NC
Carat(s): 1.19ct Cut: Round Brilliant Color: G Clarity: SI1 Certified by: GIA Report Number: 2235279059 Condition: New
Diamond
$1,324Sale Price|20% Off
GIA Certified 0.58CT F SI2 Round Brilliant Loose Diamond
Located in New York, NY
ITEM DESCRIPTIO ID #: 56573 Stone Shape: Round Brilliant Diamond Weight: 0.58CT Clarity: SI2 Color: F Cut: good Measurements: 5.13-5.17*3.42mm Depth %: 66.3% Table %: 57% Symmetry:...
White Diamond
Loose Diamond - Round Brilliant 1.25ct GIA D SI1 Solitaire
Located in Greensboro, NC
Carat(s): 1.25ct Cut: Round Brilliant Color: D Clarity: SI1 Certified by: GIA Report Number: 2235115677 Condition: New without Tags
Diamond
$3,184Sale Price|20% Off
GIA Certified 0.81CT L VS1 Old European Loose Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: 53240 Stone Shape: Old European Diamond Weight: 0.81CT Clarity: VS1 Color: L Cut: Excellent Measurements: 5.80 - 5.86 x 2.94mm Depth %: 50.3% Table %: 56% Sym...
White Diamond
Loose Diamond - Round Brilliant .47ct GIA J SI1 Solitaire
Located in Greensboro, NC
Carat: .47ct Cut: Round Brilliant Color: J Clarity: SI1 Certified by: GIA Report Number: 2221881945 Condition: New
Diamond
Loose Diamond - Round Brilliant .39ct GIA F SI1 Solitaire
Located in Greensboro, NC
Carat: .39ct Cut: Round Brilliant Color: F Clarity: SI1 Certified by: GIA Report Number: 6227931192 Condition: New
Diamond
Loose Diamond - Round Brilliant .40ct GIA H VS1 Solitaire
Located in Greensboro, NC
Carat: .40ct Cut: Round Brilliant Color: H Clarity: VS1 Certified by: GIA Report Number: 2235063883 Condition: New
Diamond
Loose Diamond - Round Brilliant Cut .54ct GIA H SI2 Solitaire
Located in Greensboro, NC
Weight: .54ct Cut: Round Brilliant Color: H Clarity: SI2 Dimensions (mm): 5.16 - 5.23 x 3.25 GIA Report Number: 6214449001 Condition: New Please check out the enlarged pictures...
Diamond
$1,200Sale Price|20% Off
GIA Certified 0.10ctw Fancy Orangy Pink Natural Round Loose Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC58606 Stone Shape: Round Diamond Weight: 0.10ctw Fancy Color: Fancy Orangy Pink Cut: Round Brilliant Symmetry: Good Polish: Good Fluorescence : None Measur...
Pink Diamond
Loose Diamond - Round Brilliant Cut .45ct GIA G VS1 Solitaire
Located in Greensboro, NC
Carat: .45ct Cut: Round Brilliant Color: G Clarity: VS1 Certified by: GIA Report Number: 5222532759 Condition: New Please check out the enlarged pictures. Thank you for taking ...
Diamond
$440Sale Price|20% Off
Natural Loose Diamond 0.50 Carat J SI2 Marquise Engagement Closeouts
Located in New York, NY
ITEM DESCRIPTION ID #: 54109 Stone Shape: Marquise Diamond Weight: 0.50CT Clarity: SI2 Color: J-K Measurements 8.18x4.20x2.46mm Our Price: $550 These genuine diamonds are graded ap...
White Diamond
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.
Are you shopping for diamonds and other loose gemstones to create your own custom jewelry?
Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.
A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.
If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.
Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.
There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.
Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.
Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”
Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)
If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.
Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.
Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.