3.19ct Round Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 3.19 cts Measurements: 9.41 x 9.41 x
2010s Tanzanian Loose Gemstones
Tanzanite
3.19ct Round Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 3.19 cts Measurements: 9.41 x 9.41 x
Tanzanite
4.4ct Round Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 4.4 cts Measurements: 10.02 x 9.94 x
Tanzanite
4.13ct Round Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 4.13 cts Measurements: 9.83 x 9.83 x
Tanzanite
3.69ct Oval Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 3.69 cts Measurements: 11.15 x 9.22
Tanzanite
4.08ct Round Violet-Blue Tanzanite GIA Certified Tanzania
Located in Toronto, Ontario
This is a stunning GIA Certified Tanzanite The GIA report reads as follows: GIA Report Number
Tanzanite
2.8ct Cushion Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 2.8 cts Measurements: 10.36 x 6.90 x
Tanzanite
2.42ct Cushion Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 2.42 cts Measurements: 9.36 x 6.60 x
Tanzanite
Natural Purple Tanzanite Gemstone 4.40 carats / JupiterGem
Located in Los Angeles, CA
Discover the enchanting natural tanzanite, a gemstone celebrated for its unique bluish-purple hue
Tanzanite
4.29ct Oval Blue-Violet Tanzanite GIA Certified Tanzania
Located in Toronto, Ontario
This is a stunning GIA Certified Tanzanite The GIA report reads as follows: GIA Report Number
Tanzanite
13.54Ct Tanzanite natural gemstone Octagonal, 13.98x12.17x8.89mm GIA Certificate
By GRALJEWELRY
Located in Dublin, D
Natural Tanzanite loose gemstone GIA Certified gemstone Gemstone Color: Purple Brown and Violet
Tanzanite
2.16ct Oval Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 2.16 cts Measurements: 9.95 x 7.36 x
Tanzanite
3.75ct Round Violet-Blue Tanzanite GIA Certified Tanzania
Located in Toronto, Ontario
This is a stunning GIA Certified Tanzanite The GIA report reads as follows: GIA Report Number
Tanzanite
22.40 Carat Double Certified Blue Dominant Tanzanite - Lotus / ICA
Located in Brisbane City, AU
This impressive 22.40 carat natural tanzanite displays the strong blue colour and remarkable
Tanzanite
2.02-Carat Natural Tanzanite — Vivid Blue Violet Oval Cut, Hue
Located in Temse, BE
This exceptional 2.02-carat tanzanite showcases a vivid blue-violet color that shifts gracefully
Tanzanite
Artisan 1.50ct Oval Tanzanite Gemstone, Medium Violet-Blue Color
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 1.50 carat oval tanzanite has beautiful, medium violet-blue color and is such a pretty gem! It
Tanzanite
1.17ct Cushion Cut Tanzanite Gemstone by Sarosi, from Tanzania
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This petite tanzanite gemstone is both gorgeous and budget-friendly! With its characteristic
Tanzanite
4.43ct Oval Violet-Blue Tanzanite GIA Certified Tanzania
Located in Toronto, Ontario
This is a stunning GIA Certified Tanzanite The GIA report reads as follows: GIA Report Number
Tanzanite
4.69ct Oval Blue-Violet Tanzanite GIA Certified Tanzania
Located in Toronto, Ontario
This is a stunning GIA Certified Tanzanite The GIA report reads as follows: GIA Report Number
Tanzanite
3.92ct Round Violetish Blue Tanzanite GIA Certified Tanzania
Located in Toronto, Ontario
This is a stunning GIA Certified Tanzanite The GIA report reads as follows: GIA Report Number
Tanzanite
3.66ct Pear-Shaped Tanzanite Gemstone, Rich Color, By Sarosi
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous 3.66 carat pear-shaped tanzanite has rich, deep color, which is seldom seen. It will
Tanzanite
$6,000Sale Price|20% Off
23.35 Ct GIT Certificate Unheated Zoisite(Tanzanite)Emerald Cut
Located in bangkok, TH
GIT certificate Unheated tanzanite Zoisite Perfect size Precision Cut By WB gem TZA149 Stone Name
Tanzanite
2.4ct Emerald Cut Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 2.4 cts Measurements: 9.38 x 7.24 x
Tanzanite
2.82ct Emerald Cut Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 2.82 cts Measurements: 10.30 x 7.05 x
Tanzanite
3.71ct Emerald Cut Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 3.71 cts Measurements: 11.16 x 8.07 x
Tanzanite
$1,120Sale Price|43% Off
3.55 Ct Natural zoisite Tanzanite Unheated Germany Precision cutting
Located in bangkok, TH
TZA11 Natural Tanzanite zoisite Unheated perfect cutting Germany Precision cutting Name Stone
Tanzanite
2.05ct Square Cushion Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 2.05 cts Measurements: 7.12 x 7.08 x
Tanzanite
3.65 Carat Natural Faceted Tanzanite Pear Shape Gemstone
Located in Peshawar, PK
Faceted Tanzanite Weight: 3.65 Carats Dimension: 10.2 x 10 x 5.6 Mm Shape: Pear Color: Purple
Tanzanite
Exquisite 5.95ct Pair of Natural Bluish Violet Cushion-Cut Tanzanites
Located in רמת גן, IL
This exceptional matched pair of natural tanzanites (Zoisite) features two stones weighing a
Tanzanite
$9,534Sale Price|30% Off
6.65Ct AAA Deluxe Tanzanite Pear Cut 16.5x10.9mm – Natural Blue Violet Gemstone
Located in Columbus, OH
attitude—this AAA tanzanite doesn’t whisper luxury, it owns it. Specifications: Item Type: Loose Gemstone
Tanzanite
$176Sale Price|20% Off
Natural Pair Tanzanite gemstone 1.22carats Precision cut silver blue color
Located in bangkok, TH
Natural Pair Tanzanite gemstone precision cut tanzanite diamond style perfect luster TZB-03 Name
Tanzanite
$1,840Sale Price|20% Off
5.98 Ct AIG Certificate Natural Tanzanite Zoisite Unheated Purple Color
Located in bangkok, TH
TZA96~ AIG Certificate Natural Tanzanite Zoisite Unheated Purple Color Heart shape Gemstone GEM
Tanzanite
4.37 Ct Natural Zoisite (Tanzanite) Unheated two colors Precision cutting
Located in bangkok, TH
Natural Unheated Zoisite (Tanzanite) perfect Precision cutting and Two colors Good Luster TZA-156
Tanzanite
1.22Ct GIA Certificate Natural Baby Pink Tanzanite Unheated Zoisite loop clean
Located in bangkok, TH
TZA214 1.22Ct GIA Certificate Natural Baby Pink Tanzanite Unheated Zoisite pear Loop Clean quality
Tanzanite
$1,600Sale Price|20% Off
5.00 Ct Natural Zoisite Unheated Tanzanite Violentish Blue Eye Clean Gemstone
Located in bangkok, TH
TZA116 5.00 Ct Natural Zoisite Unheated Tanzanite Violentish Blue Eye Clean Gemstone AIG
Tanzanite
$2,320Sale Price|20% Off
5.32 Ct AIG Certificate Natural Tanzanite Unheated Blue color eye clean
Located in bangkok, TH
TZA137 5.32 Ct AIG Certificate Natural Tanzanite Unheated fire-cut Blue color eye clean quality
Tanzanite
$640Sale Price|20% Off
2.85 Ct Natural Unheated Tanzanite Precision cut Gemstone Eye clean quality
Located in bangkok, TH
TZA169 Natural Unheated Tanzanite Precision cut Gemstone Eye clean quality Species: Natural
Tanzanite
$1,050Sale Price|30% Off
1.6 Ct AAA Vivid Blue Tanzanite Round 7mm Natural Gemstone – Brilliant Cut
Located in Columbus, OH
: Loose Gemstone Center Stone: Tanzanite Color Grade: AAA Royal Blue (Top Grade) Treatment: Heated Weight
Tanzanite
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
Tanzanite, Ziosite
$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
Tanzanite
$4,800Sale 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
Tanzanite, Ziosite
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
Tanzanite
4.61ct Oval Sugarloaf Double Cabochon Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 4.61 cts Measurements: 11.04 x 8.87
Tanzanite
5.68ct Oval Sugarloaf Double Cabochon Violet Blue Tanzanite from Tanzania
Located in Toronto, Ontario
Description: Gem Type: Tanzanite Number of Stones: 1 Weight: 5.68 cts Measurements: 11.12 x 9.08
Tanzanite
Natural Unheated Zoisite (Tanzanite)Precision cutting violet color 4.70 Ct
Located in bangkok, TH
Rare Natural Unheated Zoisite (Tanzanite)Precision cutting violet color Stone Name: Zoisite
Tanzanite
Natural AAA Tanzanite Gemstone Fancy Cushion Shape For Making Jewelry 21.46 CTs
Located in Peshawar, PK
Carat(s) Dimension : 18.2 * 16.5 * 9.63 MM Treatment : Heat Tanzanite is the birth stone of December
Tanzanite
$468Sale Price|20% Off
4.24 carats Blue Tanzanite Stone Pair Oval Shaped Tanzanian Gemstone
Located in Bangkok, TH
Cut Faceted This exquisite pair of blue tanzanite gemstones weighs a total of 4.24 carats and
Tanzanite
$1,197Sale Price|20% Off
Natural Tanzanite lose gemstone 4.73 ct., Pear cut, Certificate GFCO, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Tanzanite gemstone GFCO Certified gemstone Gemstone Color: Violet-Blue Gemstone Type
Tanzanite
1.55 Carat Natural 3 Piece Precious Blue Tanzanite Oval Cut Tanzanian Gemstone
Located in Bangkok, TH
This 1.55 Carat Natural 3-Piece Precious Blue Tanzanite Set features beautifully matched gemstones
Tanzanite
$1,600Sale Price|20% Off
4.24 Ct Natural Tanzanite Royal Blue color Gemstone Perfect cut clean clarity
Located in bangkok, TH
TZA91~ 4.24 Ct Natural Tanzanite Royal Blue Blue color Gemstone GEM DESCRIPTION Species
Tanzanite
$1,200Sale Price|20% Off
3.66 Cts Natural Tanzanite Gemstone Heart cut Blue color eye clean clarity.
Located in bangkok, TH
TZA115 3.66 Cts Natural Tanzanite Gemstone Heart cut Blue color eye clean clarity. GEM DESCRIPTION
Tanzanite
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
Tanzanite
$1,760Sale Price|20% Off
4.06 Ct Natural Tanzanite blue color Gemstone perfect cutting Eye clean Clarity
Located in bangkok, TH
TZA97 Natural Tanzanite blue color Gemstone perfect cutting Eye clean Clarity Species: Natual
Tanzanite
7.10 Carat Natural Faceted Tanzanite Pear Shape Gemstone From Tanzania
Located in Peshawar, PK
Faceted Tanzanite Weight: 7.20 Carats Dimension: 14.7 x 11.8 x 6.8 Mm Shape: Pear Color: Purple
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
Tanzanite
$640Sale Price|20% Off
2.46 carats Tanzanite rich blue color perfect cut heart loop clean
Located in bangkok, TH
Tanzanite rich blue color of Tanzania perfect cut heart shape has a beautiful sparkle TZA140
Tanzanite
$376Sale Price|20% Off
Heart Shaped Blue Tanzanite Stone Pair 2.35 carats Natural Tanzanian Gemstone
Located in Bangkok, TH
Clean Shape Heart Cut Heart Introducing an exquisite pair of Heart Shaped Blue Tanzanite Stones
Tanzanite
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
Tanzanite, Ziosite
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.