GIA Certified 0.78 Carat Fancy Yellow I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1226385862 Shape And Cut: Oval Carat Weight: 0.78 carat Measurements: 6.54 x 4.77 x 3.25 mm Color Grade: Fancy Yellow A fancy yellow diamond is a nat...
Diamond
GIA Certified 0.45 Carat Light Blue SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1378759995 Shape And Cut: Oval Carat Weight: 0.45 carat Measurements: 5.62 x 4.05 x 2.48 mm Color Grade: Light Blue FEATURES OF THE DIAMOND: This l...
Diamond
IGI Certified 1.78 Carat M Colour SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: IGI Report Number: 534245983 Shape And Cut: Oval Carat Weight: 1.78 carat Measurements: 8.31 x 6.04 x 4.35 mm Color Grade: M Colour FEATURES OF THE DIAMOND: This M col...
Diamond
GIA Certified 0.50 Carat Fancy Yellow I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2225010891 Shape And Cut: Oval Carat Weight: 0.50 carat Measurements: 5.85 x 4.42 x 2.76 mm Color Grade: Fancy Yellow FEATURES OF THE DIAMOND: This...
Diamond
GIA Certified 0.65 Carat Light Blue SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2376663176 Shape And Cut: Oval Carat Weight: 0.65 carat Measurements: 6.77 x 4.7 x 2.75 mm Color Grade: Light Blue FEATURES OF THE DIAMOND: This l...
Diamond
Sparkling 1 Pc Natural Diamond with 1.03 Ct G VS1, GIA Certificate
Located in רמת גן, IL
1 pcs Diamond - 1.03 ct - Oval - G - VS1 GIA 1 Sparkling natural oval cut diamond in a 1.03 carat G VS1 very good cut. This diamond comes with GIA Certificate and laser inscription n...
Diamond
GIA Certified 0.50 Carat Faint Pink VS1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1478584019 Shape And Cut: Oval Carat Weight: 0.50 carat Measurements: 6.44 x 4.30 x 2.72 mm Color Grade: Faint Pink FEATURES OF THE DIAMOND: Our Fa...
Diamond
Bora & Co GIA Certified 0.71ct Fancy Intense Purplish Pink & Diamond Ring
Located in New York, NY
Bora & Co GIA Certified 0.71ct Fancy Intense Purplish Pink Diamond & VS White Diamond Platinum Ring This Bora & Co GIA Certified Fancy Intense Purplish Pink Diamond Ring is an extra...
Pink Diamond
GIA Certified 0.52 Carat Fancy Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6223385854 Shape And Cut: Oval Carat Weight: 0.52 carat Measurements: 5.62x3.87x2.81 mm Color Grade: Fancy Yellow FEATURES OF THE DIAMOND: Our Fancy...
Diamond
GIA Certified 0.70 Carat Very Light Pink SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6471046087 Shape And Cut: Oval Carat Weight: 0.70 carat Measurements: 7.03 x 4.79 x 3.12 mm Color Grade: Light Pink FEATURES OF THE DIAMOND: This l...
Diamond
GIA Certified 0.43 Carat Fancy Intense Yellow VS1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5222385852 Shape And Cut: Oval Carat Weight: 0.43 carat Measurements: 5.29 x 3.96 x 2.60 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMON...
Diamond
GIA Certified 2.01 Carat Very Light Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5222821829 Shape And Cut: Oval Carat Weight: 2.01 carat Measurements: 9.70 x 6.85 x 4.56 mm Color Grade: Very Light Pink FEATURES OF THE DIAMOND: T...
Diamond
GIA Certified 0.54 Carat Very Light Pink SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1493029502 Shape And Cut: Oval Carat Weight: 0.54 carat Measurements: 5.84x4.19x2.97 mm Color Grade: Very Light Pink FEATURES OF THE DIAMOND: Our 0....
Diamond
GIA Certified 0.40 Carat Fancy Brown Pink VS1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1353840190 Shape And Cut: Oval Carat Weight: 0.40 carat Measurements: 5.29 x 4.03 x 2.51 mm Color Grade: Fancy Brown Pink FEATURES OF THE DIAMOND: ...
Diamond
GIA Certified 0.42 Carat Light Pink Brown SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1438899323 Shape And Cut: Oval Carat Weight: 0.42 carat Measurements: 5.28 x 3.88 x 2.57 mm Color Grade: Light Pink Brown FEATURES OF THE DIAMOND: ...
Diamond
GIA Certified 0.70 Carat Fancy Pinkish Brown SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 7343668635 Shape And Cut: Oval Carat Weight: 0.70 carat Measurements: 5.94 x 4.62 x 3.12 mm Color Grade: Fancy Pinkish Brown FEATURES OF THE DIAMON...
Diamond
GIA Certified 0.46 Carat Fancy Intense Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6214709506 Shape And Cut: Oval Carat Weight: 0.46 carat Measurements: 5.45 x 4.00 x 2.66 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMO...
Diamond
GIA Certified 0.50 Carat Fancy Intense Yellow I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5222378987 Shape And Cut: Oval Carat Weight: 0.50 carat Measurements: 5.51 x 4.10 x 2.80 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMON...
Diamond
GIA Certified 3.02 Carat Light Greenish Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5483000443 Shape And Cut: Oval Carat Weight: 3.02 carat Measurements: 11.37 x 7.98 x 5.10 mm Color Grade: Light Greenish Yellow FEATURES OF THE DIAM...
Diamond
GIA Certified 0.43 Carat Fancy Vivid Yellow VS1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 7221361083 Shape And Cut: Oval Carat Weight: 0.43 carat Measurements: 4.96 x 3.88 x 2.72 mm Color Grade: Fancy Vivid Yellow FEATURES OF THE DIAMOND:...
Diamond
GIA Certified 0.71 Carat Faint Pinkish Brown VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1498184149 Shape And Cut: Oval Carat Weight: 0.71 carat Measurements: 7.22 x 4.95 x 3.12 mm Color Grade: Faint Pinkish Brown FEATURES OF THE DIAMON...
Diamond
GIA Certified 0.51 Carar Fancy Intense Yellow SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6214389230 Shape And Cut: Oval Carat Weight: 0.51 carat Measurements: 5.70 x 4.29 x 2.75 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMON...
Diamond
GIA Certified 1.00 Carat W - X Colour SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6465045838 Shape And Cut: Oval Carat Weight: 1.00 carat Measurements: 7.78 x 5.60 x 3.29 mm Color Grade: W - X Colour FEATURES OF THE DIAMOND: This...
Diamond
GIA Certified 0.32 Carat Fancy Brownish Pink SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5436421820 Shape And Cut: Oval Carat Weight: 0.32 carat Measurements: 4.79 x 3.62 x 2.38 mm Color Grade: Fancy Brownish Pink FEATURES OF THE DIAMOND...
Diamond
GIA Certified 0.51 Carat Fancy Light Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2226812980 Shape And Cut: Oval Carat Weight: 0.51 carat Measurements: 5.90X4.41X2.54 mm Color Grade: Very Light Pink This very light pink natural d...
Diamond
GIA Certified 3.65 Carat Fancy Light Yellow VS1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1499624267 Shape And Cut: Oval Carat Weight: 3.65 carat Measurements: 10.77 x 7.91 x 5.40 mm Color Grade: Fancy Light Yellow FEATURES OF THE DIAMOND...
Diamond
GIA Certified 0.36 Carat Fancy Intense Yellow I2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5212785484 Shape And Cut: Oval Carat Weight: 0.36 carat Measurements: 5.04 x 3.77 x 2.59 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMO...
Diamond
GIA Certified 0.61 Carat Fancy Intense Purplish Pink Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6204896303 Shape And Cut: Oval Carat Weight: 0.61 Carat Measurements: 6.33 x 4.58 x 3.27 mm Color Grade: Fancy Intense Purplish Pink FEATURES OF THE...
Pink Diamond
GIA Certified 1.09 Carat Fancy Brown Pink I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6381287940 Shape And Cut: Oval Carat Weight: 1.09 carat Measurements: 7.19 x 5.38 x 3.43 mm Color Grade: Fancy Brown Pink FEATURES OF THE DIAMOND: ...
Diamond
GIA Certified 1.17 Carat Fancy Pinkish Brown SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2225655097 Shape And Cut: Oval Carat Weight: 1.17 carat Measurements: 7.65 X 5.72 X 3.61 mm Color Grade: Fancy Pinkish Brown FEATURES OF THE DIAMOND...
Diamond
GIA Certified 0.63 Carat Faint Light Yellow VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2201307802 Shape And Cut: Oval Carat Weight: 0.63 carat Measurements: 4.5 x 5.99 x 3.05 mm Color Grade: Fancy Light Yellow FEATURES OF THE DIAMOND: ...
Diamond
GIA Certified 0.25 Carat Fancy Brownish Pink VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1459027968 Shape And Cut: Oval Carat Weight: 0.25 carat Measurements: 4.72 x 3.31 x 2.01 mm Color Grade: Fancy Brownish Pink This Fancy Brownish Pink...
Diamond
GIA Certified 0.71 Carat Fancy Purplish Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6392896273 Shape And Cut: Oval Carat Weight: 0.71 carat Measurements: 7.31 x 4.50 x 2.70 mm Color Grade: Fancy Purplish Pink This fancy purplish-pink...
Diamond
GIA Certified 0.43 Carat Fancy Intense Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5211961591 Shape And Cut: Oval Carat Weight: 0.43 carat Measurements: 5.41 x 4.08 x 2.53 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMON...
Diamond
GIA Certified 0.34 Carat Fancy Light Pink SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2477201217 Shape And Cut: Oval Carat Weight: 0.34 carat Measurements: 4.94 x 3.41 x 2.62 mm Color Grade: Fancy Light Pink FEATURES OF THE DIAMOND: ...
Diamond
GIA Certified 0.53 Carat Fancy Intense Yellow SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6362905210 Shape And Cut: Oval Carat Weight: 0.53carat Measurements: 5.82 x 4.28 x 2.81 mm Color Grade: Fancy Intense Yellow This 0.53 carat diamond ...
Diamond
GIA Certified 1.32 Carat Fancy Intense Yellow VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1487660414 Shape And Cut: Oval Carat Weight: 1.32 carat Measurements: 7.75 x 5.53 x 3.75 mm Color Grade: Fancy Intense Yellow FEATURES OF THE DIAMOND...
Diamond
GIA Certified 1.00 Carat Fancy Pinkish Brown VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1435108086 Shape And Cut: Oval Carat Weight: 1.00 carat Measurements: 7.75 x 5.37 x 3.59 mm Color Grade: Faint Pinkish Brown FEATURES OF THE DIAMOND...
Diamond
GIA Certified 0.40 Carat Very Light Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6465863407 Shape And Cut: Oval Carat Weight: 0.40carat Measurements: 5.29 X 3.83 X 2.43 mm Color Grade: Very Light Pink This very light pink diamond ...
Diamond
GIA Certified 2.98 Carat Light Pinkish Brown SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2221925656 Shape And Cut: Oval Carat Weight: 2.98 carat Measurements: 10.34 x 7.55 x 4.80 mm Color Grade: Light Pinkish Brown This light pinkish-bro...
Diamond
GIA Certified 0.54 Carat Very Light Pink VS2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 3465706106 Shape And Cut: Oval Carat Weight: 0.54 carat Measurements: 6.86 x 4.63 x 2.75 mm Color Grade: Very Light Pink Our very little pink diam...
Diamond
GIA Certified 1.01 Carat Fancy Pink Brown SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2416563162 Shape And Cut: Oval Carat Weight: 1.01 carat Measurements: 7.57 x 5.26 x 3.66 mm Color Grade: Fancy Pink Brown FEATURES OF THE DIAMOND: ...
Diamond
GIA Certified 1.71 Carat Fancy Light Greenish Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1236113720 Shape And Cut: Oval Carat Weight: 1.71 carat Measurements: 8.61 x 5.88 x 4.16 mm Color Grade: Fancy Light Greenish Yellow FEATURES OF THE...
Diamond
GIA Certified 1.01 Carat Fancy Light Pinkish Purple I1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2225862394 Shape And Cut: Oval Carat Weight: 1.01 carat Measurements: 7.64 x 5.34 x 3.34 mm Color Grade: Light Pinkish Purple FEATURES OF THE DIAMO...
Diamond
GIA Certified 0.81 Carat Very Light Yellow Green SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5463483008 Shape And Cut: Oval Carat Weight: 0.81 carat Measurements: 7.21 x 5.21 x 3.20 mm Color Grade: Very Light Yellow Green FEATURES OF THE DI...
Diamond
GIA Certified 0.47 Carat Fancy Light Bluish green VS1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 1375143705 Shape And Cut: Oval Carat Weight: 0.47carat Measurements: 5.77 x 3.85 x 2.63 mm Color Grade: Fancy Light Bluish Green Our oval cut diam...
Diamond
GIA Certified 1.02 Carat Fancy Light Orangy Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 7383844803 Shape And Cut: Oval Carat Weight: 1.02 carat Measurements: 7.46 x 5.11 x 3.35 mm Color Grade: Fancy Light Orangy Pink FEATURES OF THE DIA...
Diamond
GIA Certified 0.50 Carat Fancy Light Purplish Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2235099174 Shape And Cut: Oval Carat Weight: 0.50 carat Measurements: 5.96 x 4.33 x 2.47 mm Color Grade: Fancy Light Purplish Pink FEATURES OF THE D...
Diamond
GIA Certified 0.27 Carat Fancy Dark Gray Green SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2368583060 Shape And Cut: Oval Carat Weight: 0.27 carat Measurements: 4.64 x 3.36 x 2.20 mm Color Grade: Fancy Dark Gray Green FEATURES OF THE DIAMO...
Diamond
GIA Certified 0.40 Carat Fancy Brownish Greenish Yellow SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6432914320 Shape And Cut: Oval Carat Weight: 0.40 carat Measurements: 5.35 x 3.91 x 2.45 mm Color Grade: Fancy Brownish Greenish Yellow FEATURES OF ...
Diamond
GIA Certified 1.00 Carat Fancy Light Green Yellow SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 6222980926 Shape And Cut: Oval Carat Weight: 1.00 carat Measurements: 6.74 x 5.26 x 3.09 mm Color Grade: Fancy Light Green Yellow FEATURES OF THE DI...
Diamond
GIA Certified 0.37 Carat Fancy Light Purplish Pink SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2186682245 Shape And Cut: Oval Carat Weight: 0.37 carat Measurements: 4.93 x 3.42 x 2.74 mm Color Grade: Fancy Light Purplish Pink FEATURES OF THE D...
Diamond
GIA Certified 0.31 Carat Fancy Deep Yellow Orange SI2 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 5346094490 Shape And Cut: Oval Carat Weight: 0.31 carat Measurements: 5.34 x 3.47 x 2.24 mm Color Grade: Fancy Deep Yellow Orange FEATURES OF THE DI...
Diamond
Bora & Co GIA Certified 1.00ct Brazilian Paraiba Tourmaline & Diamond Ring
Located in New York, NY
Bora & Co GIA Certified 1.00ct Brazilian Paraiba Tourmaline and Diamond 18K White Gold Ring A dazzling fusion of rarity and elegance, this Bora & Co ring features a 1.00-carat GIA-c...
Diamond, Tourmaline, Paraiba
Dazzling 1 pc Ideal Cut Natural Diamond w/1.00 ct - GIA Certified
Located in רמת גן, IL
Dazzling 1 pc Ideal Cut Natural Diamond w/1.00 ct - GIA Certified This dazzling 1.00 carat oval diamond embodies timeless elegance and exceptional sparkle. The coveted ideal cut en...
Diamond
GIA Certified 1.06 Carat Fancy Deep Brownish Greenish Yellow SI1 Clarity Diamond
Located in บางรัก, TH
Certificate: GIA Report Number: 2466188722 Shape And Cut: Oval Carat Weight: 1.06 carat Measurements: 7.51 x 5.12 x 3.37 mm Color Grade: Fancy Deep Brownish Greenish Yellow FEATUR...
Diamond
Gia certified 4.08 carat Fancy Yellow color Vvs2 clarity
Located in Ramat Gan, IL
Fancy Light Yellow Oval Diamond, 4.08ct — GIA Certified A 4.08 carat oval modified brilliant diamond in Fancy Light Yellow, natural color origin, with even color distribution through...
Diamond, Yellow Diamond
Natural 18.10 Carat Mix Fancy Pink Yellow Green Orange Gray Purple Diamond Set
Located in Houston, TX
In new condition. 166 Loose Diamonds Shapes: Oval, Cushion, Radiant, Pear shape, Princess, Heart Shape Color Grade: Fancy Intense, Fancy Deep, Fancy, Fancy Light Color Tone: PINK YE...
Diamond
$228Sale Price|20% Off
Natural Bestnasite Gemstone 2.67 Carats Bastnasite Jewelry Bastnasite Gemstone
Located in Bangkok, TH
Natural Bastnasite Gemstone, Available For Sale At Wholesale Price,Certified Gemstone Natural High Quality,Faceted Oval Shape Flawless 2.67 Carats Certified Bestnasite From Zagi Moun...
Brown Diamond
0.78ct Vivid Neon Blue-Green (Copper-Bearing) Natural Paraiba Tourmaline
Located in New York, NY
Few gemstones command attention like a natural Paraiba tourmaline—celebrated for its copper-bearing chemistry that creates a vivid, neon blue-green radiance. First discovered in Braz...
Paraiba
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.