Royal Antwerp Gem GRA Certified Natural Tanzanite 2.92 Ct Oval Cut
Located in Temse, BE
DESCRIPTION This natural tanzanite displays a vivid violetish blue color combined with excellent transparency and an elegant oval mixed cut. The gemstone shows rich blue flashes wit...
Tanzanite
Royal Antwerp Gem GRA Certified Natural Tanzanite 4.59 Ct Pear Cut
Located in Temse, BE
DESCRIPTION This natural tanzanite displays a vivid violetish blue color combined with excellent transparency and an elegant pear mixed cut. The gemstone shows rich blue flashes wit...
Tanzanite
$14,400Sale Price|20% Off
1.91 Ct GIA Certificate Natural Pink Tanzanite Zoisite Unheated cushion shape
Located in bangkok, TH
TZA215 1.91 Ct GIA Certificate Natural Pink Tanzanite Zoisite Unheated cushion shape Eye Clean quality Tanzania Gemstone GEM DESCRIPTION Species: Natural Tanzanite Variety: Natur...
Tanzanite, Ziosite
Royal Antwerp Gem GRA Certified Natural Tanzanite 1.63 Ct Oval Cut
Located in Temse, BE
DESCRIPTION This natural tanzanite displays a vivid violetish blue color with attractive bright tones and lively brilliance. The gemstone shows an elegant oval mixed cut that enhanc...
Tanzanite
$3,600Sale Price|20% Off
1.08 Ct GIA Certificate Natural Pink Tanzanite Unheated Zoisite Cushion shape
Located in bangkok, TH
TZA213 GIA Certificate Natural Pink Tanzanite Unheated Zoisite Cushion shape Loop clean quality Tanzania Gemstone GEM DESCRIPTION Species: Natural Tanzanite Variety: Unheat Pink...
Tanzanite, Ziosite
Royal Antwerp Gem GRA Certified Natural Tanzanite 2.98 Ct Pear Cut
Located in Temse, BE
DESCRIPTION This natural tanzanite displays a vivid violetish blue color with excellent transparency and an elegant pear mixed cut. The gemstone presents intense electric blue tones...
Tanzanite
$1,520Sale Price|20% Off
5.16Ct AIG Certified Natural Unheated Tanzanite zoisite loop clean Precision cut
Located in bangkok, TH
TZA125 AIG Certified Precision cut unheated Tanzanite zoisite loop clean Species: Natural zoisite Tanzanite Variety: Natural zoisite. Weight: 5.16 Ct Color: Violettish Blue C...
Tanzanite
Captivating 4.56ct Pair of Natural Pear-Shaped Violet Tanzanites - GIT Certified
Located in רמת גן, IL
This magnificent matched pair of natural tanzanites (Zoisite) presents a rare opportunity to own a perfectly coordinated set of one of the world's most captivating gemstones. The pai...
Tanzanite
160.15 carats top quality tanzania tanzanite plain trillion layout natural gem
Located in Jaipur, RJ
160.15 carats top quality tanzania tanzanite plain trillion layout natural gem Gemstone: tanzanite Shape: Trillion Carat weight: 160.15 Size - 4x9 to 18x9 MM Quantity - 14 pieces
Tanzanite
Royal Antwerp Gem GRA Certified Natural Tanzanite 5.49 Ct Pear Mixed Cut
Located in Temse, BE
DESCRIPTION This natural tanzanite displays a vivid violetish blue color with an attractive pear mixed cut and impressive size. The gemstone shows strong saturation combined with a ...
Tanzanite
$1,080Sale Price|20% Off
3.95 Carat Glamorous Faceted Tanzanite Pear Shape Gem From Tanzania
Located in Peshawar, PK
Faceted Tanzanite Weight: 3.95 Carats Dimension: 10.5 x 10.2 x 5.6 Mm Shape: Pear Color: Purple Certificate: On Demand . Hardness. Tanzanite is a slightly soft stone when compared ...
Tanzanite
$2,160Sale Price|20% Off
6.96 Ct GIT AIG Two certificate Natural Unheated Tanzanite Metallic purple Color
Located in bangkok, TH
TZA154 6.96 Ct Zoisite Unheated tanzanite GIT AIG Two certificate perfect cutting loop clean GIT,AIG Two Certificate Natural Tanzanite Zoisite Unheated perfect cutting loop clean ...
Tanzanite, Ziosite
Natural Tanzanite 11x9mm Faceted Cut AA Color Oval 3.75 cts December Birthstone
Located in New York, NY
We have a wide range of loose gemstones which include Tanzanite, Aquamarine, Peach Morganite, Amethyst, Ethiopian opals, Ruby, Sapphires, Emeralds and Tourmaline
Tanzanite
Natural Tanzanite 11x9mm Faceted Cut A Color Oval 4.5 cts December Birthstone
Located in New York, NY
We have a wide range of loose gemstones which include Tanzanite, Aquamarine, Peach Morganite, Amethyst, Ethiopian opals, Ruby, Sapphires, Emeralds and Tourmaline
Tanzanite
Natural Tanzanite 11x9mm Faceted Cut AAA Color Oval 3.35 cts December Birthstone
Located in New York, NY
We have a wide range of loose gemstones which include Tanzanite, Aquamarine, Peach Morganite, Amethyst, Ethiopian opals, Ruby, Sapphires, Emeralds and Tourmaline
Tanzanite
1.20 Ct ICA Certificate Natural pink Tanzanite unheat zoisite eye clean
Located in bangkok, TH
TZA219～ ICA Certified 1.20ct Natural Pink Tanzanite Unheated Zoisite eye clean Gemstone GEM DESCRIPTION Species: Natural Tanzanite Variety: Natural Pink Tanzanite Zoisite We...
Ziosite
$544Sale Price|20% Off
Luxury Royal design Special imperial color Spessatite garnet earring ready 5.69c
Located in bangkok, TH
Luxury Royal design Special imperial color Spessatite garnet earring ready Product Data: • Total: 5.69ct • Display size: 33*14mm Gemstone Details: • Tanzanite: 1.01ct, 2pcs bl...
Garnet, Sapphire, Tanzanite
$1,038Sale Price|20% Off
Unheated Saphires yellow purple NATURAL COLOR 0.96 ct Ilakaka Mine Madagascar
Located in Viena, Viena
..untreated NATURAL COLOR sapphires...always a rarity, most sapphires are heated, from the Ilakaka mine Madagascar yellow purple NATURAL COLOR total approx. 0.96 ct in the size 6 x 4...
Tanzanite
$4,000Sale Price|20% Off
4.93 Carats Rare Unheated Tanzanite zoisite pinkish Brown Bi color
Located in bangkok, TH
TZA197 Natural Unheated Tanzanite zoisite rare pinkish Brown Bi color completely clean and flawless Perfect Cut Name: Tanzanite Weight: 4.93 Carats Color: Pinkish Brown Bi Color Or...
Tanzanite
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.