GIA 1.62 Carat Loose Round Brilliant Cut Natural Diamond I Color VS2 Clarity
Located in Carmel By The Sea, CA
Private Jeweler, an appointment-only jewelry office in Carmel-by-the-Sea, California, specializing in fine jewelry, loose diamonds, custom design, estate jewelry, and appraisal servi...
Diamond
$25,600Sale Price|20% Off
Alexander Beverly Hills GIA 3.72ct Cushion Fancy Yellow VS1 Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose cushion yellow diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Yellow Diamond, Diamond
$352,000Sale Price|20% Off
Alexander Beverly Hills GIA 6.19ct E VVS2 Round Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose round brilliant diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$88,000Sale Price|20% Off
Alexander Beverly Hills GIA 5.00ct Oval Diamond I VVS1
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose oval cut diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$76,000Sale Price|30% Off
Alexander Beverly Hills GIA 6.10ct Radiant Diamond L SI1
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose radiant cut diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$341,000Sale Price|20% Off
Alexander Beverly Hills GIA 5.02ct Pear E VS2 Diamond (1.5 ratio)
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose pear diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$30,500Sale Price|20% Off
Alexander Beverly Hills GIA 3.01ct L VVS2 Round Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose round brilliant diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond
$75,000Sale Price|20% Off
Alexander Beverly Hills GIA 5.03ct K VS1 Emerald Cut Diamond (1.31 ratio)
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$25,800Sale Price|20% Off
Alexander Beverly Hills GIA 2.20ct Radiant Fancy Yellow VS1 Diamond (1.18 ratio)
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose radiant yellow diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Yellow Diamond, Diamond
$190,000Sale Price|20% Off
Alexander Beverly Hills GIA 5.03ct G VS1 Emerald Cut Diamond (1.44 ratio)
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
GIA Certified Triple X 1.50 Carat Natural Diamond Round Brilliant Cut H VS2
Located in Los Angeles, CA
This loose diamond weighs 1.50 carats and is accompanied by a GIA grading report, providing independent verification of the diamond's quality and authenticity.
Diamond
$1,471Sale Price|20% Off
GIA Certified 1.01ct Emerald Cut Diamond, J Color, VS2 Clarity
Located in Los Angeles, CA
Gorgeous cut Emerald diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond, Emerald
GIA Certified 2.01ct Heart Cut Diamond, F Color, SI1 Clarity
Located in Los Angeles, CA
Gorgeous cut Heart diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond
$139,000Sale Price|20% Off
Alexander Beverly Hills GIA 5.01ct Cushion H VS1 Diamond (1.15 ratio)
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose cushion diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond
$161,000Sale Price|25% Off
Alexander Beverly Hills GIA 5.04ct Radiant Diamond F VS2 (1.3 ratio)
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose radiant cut diamond, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond
$1,887Sale Price|20% Off
GIA Certified 1.01ct Round Diamond, I Color, I1 Clarity, By Aamiaa
Located in Los Angeles, CA
Gorgeous cut Round diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond
$9,655Sale Price|20% Off
GIA Certified 1.52ct Round Diamond, E Color, SI1 Clarity, By Aamiaa
Located in Los Angeles, CA
Gorgeous cut Round diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond
GIA Certified 1.04ct Round Diamond, D Color, VS2 Clarity, By Aamiaa
Located in Los Angeles, CA
Gorgeous cut Round diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond
$4,887Sale Price|20% Off
GIA Certified 1.35ct Round Diamond, H Color, VS2 Clarity, By Aamiaa
Located in Los Angeles, CA
Gorgeous cut Round diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond
$56,600Sale Price|20% Off
Alexander Beverly Hills HRD Certified 5.59 Carat Emerald Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, HRD certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$55,300Sale Price|63% Off
Alexander GIA Certified 5.10 Carat L VS1 Cushion Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$49,000Sale Price|44% Off
Alexander GIA Certified 5.01 Carat L VS2 Radiant Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$36,000Sale Price|47% Off
Alexander GIA Certified 4.01 Carat K SI2 Oval Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$130,000Sale Price|25% Off
Alexander GIA Certified 4.02 Carat E VS2 Heart Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
$1,687Sale Price|20% Off
GIA Certified 1.01ct Princess Cut Diamond, G Color, SI1 Clarity
Located in Los Angeles, CA
Gorgeous cut Princess diamond with GIA certification. offered as a loose diamond, but it is simple to shape it into the ring of your choice.
Diamond
$92,300Sale Price|57% Off
Alexander GIA Certified 5.16 Carat J VS2 Pear Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond
$85,000Sale Price|20% Off
Alexander Beverly Hills HRD Certified 8.99 Carat M SI2 Pear Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond
$110,000Sale Price|37% Off
Alexander GIA Certified 4.01 Carat E VS2 Heart Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made into a ring of your liking.
Diamond, White Diamond
GIA Certified 1.29 Carat G-VS1 Excellent cut Natural Diamond Round Brilliant
Located in Los Angeles, CA
This loose diamond weighs 1.29 carats and is accompanied by a GIA grading report, providing independent verification of the diamond's authenticity and quality characteristics.
Diamond
GIA Certified 1.20 Carat Natural Diamond Round Brilliant Cut F Color VS1 Clarity
Located in Los Angeles, CA
If you are a re-seller or have a jewelry store, please contact us for all your jewelry and loose diamond needs.
Diamond
GIA Certified 2.02 Carat Natural Diamond Princess Cut F Color SI1 Clarity
Located in Los Angeles, CA
This loose diamond weighs 2.02 carats and is accompanied by a GIA grading report, offering independent verification of the stone's characteristics and authenticity.
Diamond
Loose Round Brilliant Cut Diamond 0.96 ct
Located in Laguna Beach, CA
Loose .96 carat round brilliant cut diamond. No grading lab certificate.
Diamond
Loose Round Brilliant Cut Diamond 1.26 ct
Located in Laguna Beach, CA
Loose round brilliant diamond, 1.26 carats. No grading lab certificate.
Diamond
0.92 TCW Yellow Cushion Diamond Loose Stones
Located in New York, NY
Weight: 0.2 Grams Stone: 0.92 TCW Yellow Diamond (0.30+ ct.) Measurements: 3.8 x 3.35 x 2.55 mm 3.6 x 3.3 x 2.85 mm 3.7 x 3.25 x 2.6 mm ITEM #: BR-1471-120424-03
Yellow Diamond
1.41ct GIA certified fancy yellow diamond loose
Located in Boca Raton, FL
GIA certified diamond, beautiful fancy yellow, comes with box and papers! Natural Color Diamond: Color: Fancy Yellow Cut: Square Brilliant Carat: 1.41ct Certificate of authenticity...
Yellow Diamond
EGL USA Certified Loose Marquise Cut Diamond 1.22ct
Located in Laguna Beach, CA
Loose 1.22 carat marquise shape diamond. Certified by EGL grading labs, h color, i1 clarity, cert.
Diamond
Blue Diamond - 0.19ct Natural Loose Round VVS1 Untreated
Located in New York, NY
**DIAMOND INFORMATION** Retail Price - Not Provided Item Stock Number - 262977983838 Shape - Round Carat Weight - 0.19ct Measurements - 3.76 x 3.76 x 2.22 mm Color - Blue ...
Blue Diamond
$25,600Sale Price|20% Off
GIA certified diamond 1.01ct Fancy PInk diamond loose NATURAL COLOR
Located in Boca Raton, FL
Loose GIA diamond fancy pink, will comes with all certififcates.
Pink Diamond
Gray Diamond - 0.82ct Natural Loose Fancy Light Gray Diamond GIA Cushion
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $9,000 Item Stock Number - 547963327 Certificate Number - GIA 2238165340 Shape - Cushion Carat Weight - 0.81ct Measurements - 4...
Diamond
Chameleon Diamond 0.34ct Natural Loose Fancy Green Color Diamond GIA Pear
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $5,500 Item Stock Number - 8658745805 Certificate Number - GIA 2211740141 Shape - Pear Carat Weight - 0.34ct Measurements - 5.6...
Diamond
Chameleon Diamond 0.38ct Natural Loose Fancy Green Color Diamond GIA Marquise
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $4,500 Item Stock Number - 8658745804 Certificate Number - GIA 6214740114 Shape - Marquise Carat Weight - 0.38ct Measurements -...
Diamond
Chameleon Diamond 0.28ct Natural Loose Fancy Green Color Diamond GIA Marquise
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $4,500 Item Stock Number - 8658745807 Certificate Number - GIA 6214739258 Shape - Marquise Carat Weight - 0.28ct Measurements -...
Diamond
Chameleon Diamond 0.28ct Natural Loose Fancy Green Color Diamond GIA Pear
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $4,500 Item Stock Number - 8658745806 Certificate Number - GIA 2211740130 Shape - Pear Carat Weight - 0.28ct Measurements - 5.2...
Diamond
Real Pink Diamond - 0.22ct Radiant Natural Loose Fancy Pink Purple Diamond
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $6500 Item Stock Number - P54738568 Certificate Number - GIA 6223749994 Shape - Radiant Carat Weight - 0.22ct Color - Fancy Pin...
Pink Diamond
Pink Diamond - 0.52ct Natural Loose Fancy Pink Color Diamond GIA Pear
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $9,000 Item Stock Number - 547963322 Certificate Number - GIA 6342124880 Shape - Cushion Carat Weight - 0.52ct Measurements - 4...
Pink Diamond
$44,000Sale Price|20% Off
Huge Loose GIA certified heart brilliant diamond 4.57ct
Located in Boca Raton, FL
GIA certified diamond, stunning heart brilliant 4.57 carats! Natural Diamond: Color: Fancy Yellow Cut: Heart Brilliant Carat: 4.57ct Clarity: SI1 Item: T42000 Certificate of authent...
Diamond
$1,100Sale Price|31% Off
Bespoke Loose Blue Round Brilliant Cut Diamonds 1.00ct
Located in SYDNEY, NSW
A Set of Assorted Treated Deep Blue Round Brilliant Cut Diamonds, approximately 0.02ct each, 50 in total, weighing 1.00ct. Metal: N/A Carat: 1.00ct Colour: Blue Clarity: N/A Cut: Ro...
Diamond, White Gold
Pink Diamond - 0.08ct Natural Loose Fancy Pink Pear VS2
Located in New York, NY
DIAMOND INFORMATION Retail Price - Not Provided Item Stock Number - 252941475344 Shape - Pear Carat Weight - 0.08ct Measurements - 3.57 x 2.56 x 1.28 mm Color - Pink Cla...
Pink Diamond
Orange Diamond 1.01ct Natural Loose Fancy Vivid Yellow Orange Diamond GIA SI1
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $75,000 Item Stock Number - 3548234868368 Certificate Number - GIA 15035488 Shape - Pear Carat Weight - 1.01ct Color - Fancy Vi...
Diamond
Huge Rare Diamond - 25.13ct Natural Loose Fancy Brown Yellow GIA Radiant Diamond
Located in New York, NY
DIAMOND INFORMATION Retail Price - $550,000 Item Stock Number - YB4163745798 Certificate Number - GIA 1152441674 Shape - Radiant Carat Weight - 25.13ct Color - Fancy Dark Brown Yell...
Diamond
GIA Certified Loose Round Brilliant Cut Diamond 2.41 ct
Located in Laguna Beach, CA
2.41 carat round brilliant cut diamond graded by GIA. The color grade is I, clarity is Si2. The cut grade is good and there is no fluorescence. The grading report number is 622795896...
Diamond
GIA certified .15ct Fancy Intense Pink Purple Diamond Loose 41114*
By Unbranded
Located in New York, NY
GIA Certified .15ct Natural Diamond Loose Fancy Intense Pink Purple Even 4.00 x 2.69 x 1.88 mm Report # 2235404915 Stating I3 clarity
Diamond
Violet Diamond - 0.20ct Natural Loose Fancy Violet Gray Color Diamond Round SI1
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $12,500 Item Stock Number - 24836594693264 Certificate Number - None Shape - Round Carat Weight - 0.20ct Color - Fancy Violet G...
Diamond
Gray Diamond 0.70ct Natural Loose Fancy Dark Gray Color Diamond GIA Marquise
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $15,000 Item Stock Number - 867487453670 Certificate Number - GIA 1226338202 Shape - Marquise Carat Weight - 0.70ct Color - Fan...
Diamond
Orange Diamond 0.50ct Natural Loose Fancy Vivid Orange Yellow Color Diamond GIA
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $9,000 Item Stock Number - 867487453671 Certificate Number - GIA 7378272934 Shape - Radiant Carat Weight - 0.50ct Color - Fancy...
Diamond
0.35ct Green Diamond - Natural Loose Fancy Green Colored Diamond GIA VS1 Cushion
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $19,500 Item Stock Number - 43645866003 Certificate Number - GIA 7348087372 Shape - Cushion Carat Weight - 0.35ct Measurements ...
Diamond
Gray Diamond - 0.54ct Natural Loose Fancy Light Gray Diamond GIA Emerald VS1
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $9,000 Item Stock Number - 547963326 Certificate Number - GIA 2215071508 Shape - Emerald Carat Weight - 0.54ct Measurements - 5...
Diamond
Chameleon Diamond 0.24ct Natural Loose Fancy Green Color Diamond GIA Pear Shape
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $4,500 Item Stock Number - 8658745803 Certificate Number - GIA 5212740124 Shape - Pear Carat Weight - 0.24ct Measurements - 5.2...
Diamond
Chameleon Diamond - Real 1.53ct Natural Loose Fancy Green Yellow SI2 Diamond GIA
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $18,000 Item Stock Number - 35736835498 Certificate Number - GIA 3265545223 Shape - Pear Carat Weight - 1.53ct Measurements - 8...
Diamond
Chameleon Diamond - Real 1.50ct Natural Loose Fancy Green Yellow SI2 Diamond GIA
Located in New York, NY
ITEM SPECIFICATION DIAMOND INFORMATION Retail Price - $18,000 Item Stock Number - 35736835497 Certificate Number - GIA 6211816203 Shape - Pear Carat Weight - 1.50ct Measurements - 8...
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.