DECEMBER BIRTHSTONE - TANZANITE


Tanzanite is relatively new on the gemstone market, but has left its mark. Its blue-lavender color is rather unique and a wonderful addition to the gemstone palette. Found in Tanzania (hence the name) in 1967, it has since become a well known and widely distributed gemstone. It has become so popular that in October of 2002 the American Gem Trade Association (AGTA) announced that tanzanite had joined zircon and turquoise in the traditional list of birthstones for the month of December. Tanzanite is associated with contentment and understanding.

It has better fire than the tourmaline elbaite or peridot and an adequate hardness. Its only one direction of cleavage is somewhat of a problem because it is oriented with the direction of strongest pleochroism. This would be a problem in most gemstones because that is the direction the gemcutter would usually select to maximize the color. However, with tanzanite the color is usually strong enough anyway.

Pleochroism is very pronounced in tanzanite and is seen as three different color shades in the same stone. In the viewing a tanzanite stone, the colors dark blue, green-yellow and red-purple can be seen, all a result of pleochroism. Lesser stones may have a brownish color due to the mixing of blue, purple and green. These stones are usually heat treated to a deep blue color. Iolite is a blue-violet gemstone variety of the mineral cordierite, has strong pleochroism and can be confused with tanzanite. However, iolite is usually less strongly colored, its pleochroic colors vary from blue-violet to yellowish gray to blue and it has less fire.

Nearly all tanzanite has been heat treated to generate the beautiful violet-blue color this stone is known for.  When first mined, most stones are a muted green color. The only known source of Tanzanite is a five square mile hilltop at Merelani, ten miles south of the Kilimanjaro International Airport in Tanzania.

Tanzanite is the gem variety of the mineral Zoisite.

For natural tanzanite mineral specimens see our For Sale or Sold lists

Tanzanite Jewelry - Hover over an item for more information
Sterling Silver White Topaz, Tanzanite Three-Stone Ring Jewelry
This Ring was handmade by a master artisan and is one of a kind.Only $379.49 at JeGem.com
no photoSterling Silver White Topaz, Tanzanite Three-Stone Ring Jewelry
$379.49
JeGem.com
1.73 carat Oval-Cut Amethyst, Tanzanite and Black Spinal Ring in Platinum over Sterling Silver, Size 6, Size 6
Rated by 25,000+ Customers. 1.73 TCW Oval-Cut Amethyst, Tanzanite and Black Spinal Ring in Platinum over Sterling SilverOnly $85.49 at PalmBeachJewelry
no photo1.73 carat Oval-Cut Amethyst, Tanzanite and Black Spinal Ring in Platinum over Sterling Silver, Size 6, Size 6
$85.49
PalmBeachJewelry
Ross-Simons .95 ct. t.w. Tanzanite Stud Earrings in 14kt White Gold
Get lost in the eye-catching, sky blue hue of these .95 ct. t.w. round tanzanite stud earrings. Post, earrings presented in 14kt white gold.Only $146.25 at Ross-Simons
no photoRoss-Simons .95 ct. t.w. Tanzanite Stud Earrings in 14kt White Gold
$146.25
Ross-Simons
Tanzanite & Diamond Bouquet Ring
In this gorgeous creation, eight vibrant tanzanite and 14 dazzling diamonds glisten on a 24kt gold-plated band. Available in whole sizes 5 to 10.Only $149.00 at Danbury Mint
no photoTanzanite & Diamond Bouquet Ring
$149.00
Danbury Mint
.76 carat Marquise-Cut Genuine Purple Tanzanite with Diamond Accent Platinum over Sterling Silver Ring, Size 10,6,7,8,9, Size 10,6,7,8,9
Rated by 25,000+ Customers. .76 TCW Marquise-Cut Genuine Purple Tanzanite with Diamond Accent Platinum over Sterling Silver RingOnly $85.49 at PalmBeachJewelry
no photo.76 carat Marquise-Cut Genuine Purple Tanzanite with Diamond Accent Platinum over Sterling Silver Ring, Size 10,6,7,8,9, Size 10,6,7,8,9
$85.49
PalmBeachJewelry
1.09 carat Tanzanite and White Topaz Ring in Sterling Silver, Size 6,9, Size 6,9
Rated by 25,000+ Customers. 1.09 TCW Tanzanite and White Topaz Ring in Sterling SilverOnly $94.99 at PalmBeachJewelry
no photo1.09 carat Tanzanite and White Topaz Ring in Sterling Silver, Size 6,9, Size 6,9
$94.99
PalmBeachJewelry
Ross-Simons .70ct t.w. Tanzanite, .40ct t.w. White Topaz Five-Stone Ring in Silver
Delightfully shimmering in a plush purple hue, our five-stone ring alternates rounds of .70 ct. t.w. tanzanite with rounds of .40 ct. t.w. white topaz. Sterling silver ring.Only $135.00 at Ross-Simons
no photoRoss-Simons .70ct t.w. Tanzanite, .40ct t.w. White Topaz Five-Stone Ring in Silver
$135.00
Ross-Simons
1.01 carat Oval-Cut Tanzanite and White Topaz Accented Ring in Platinum over Sterling Silver, Size 7,8,9, Size 7,8,9
Rated by 25,000+ Customers. 1.01 TCW Oval-Cut Tanzanite and White Topaz Accented Ring in Platinum over Sterling SilverOnly $94.99 at PalmBeachJewelry
no photo1.01 carat Oval-Cut Tanzanite and White Topaz Accented Ring in Platinum over Sterling Silver, Size 7,8,9, Size 7,8,9
$94.99
PalmBeachJewelry
Aquamarine & Tanzanite Splendor Ring
A glistening aquamarine is surrounded by two stunning tanzanite and 12 dazzling diamonds in this 14kt gold-plated sterling silver ring.Available in whole sizes 5 to 10.Only $249.00 at Danbury Mint
no photoAquamarine & Tanzanite Splendor Ring
$249.00
Danbury Mint
Sterling Silver Tanzanite Ring Jewelry
This Ring was handmade by a master artisan and is one of a kind.Only $443.99 at JeGem.com
no photoSterling Silver Tanzanite Ring Jewelry
$443.99
JeGem.com
Tanzanite-Color Glass Braided Bracelet, Black - Tai
The center detail of this Tai bracelet, surrounded by bright crystals, delights and dazzles with rich variegation. Faceted tanzanite-colored glass pendant set in silver-plated pave crystal bezel. Braided cord bracelet. Drawstring closure with beaded...Only $90.00 at Neiman Marcus
no photoTanzanite-Color Glass Braided Bracelet, Black - Tai
$90.00
Neiman Marcus
Sterling Silver Tanzanite Pendant Jewelry
This Pendant was handmade by a master artisan and is one of a kind.Only $346.49 at JeGem.com
no photoSterling Silver Tanzanite Pendant Jewelry
$346.49
JeGem.com
2 CT TW Aquamarine and Tanzanite Ring in Sterling Silver, Size 6,7,8,9, Size 6,7,8,9
Rated by 25,000+ Customers. 2 CT TW Aquamarine and Tanzanite Ring in Sterling SilverOnly $132.99 at PalmBeachJewelry
no photo2 CT TW Aquamarine and Tanzanite Ring in Sterling Silver, Size 6,7,8,9, Size 6,7,8,9
$132.99
PalmBeachJewelry
Ross-Simons 10-11mm Pearl, 9.00ct t.w. Tanzanite Drop Earrings in 14kt Yellow Gold
Like all true classics, 10-11mm freshwater pearl drop earrings transcend the boundaries of time and style but add a cluster of gorgeous 9.00 ct. t.w. tanzanites and they make quite a style statement. Earwires, 14kt yellow gold earrings. Pearl...Only $63.75 at Ross-Simons
no photoRoss-Simons 10-11mm Pearl, 9.00ct t.w. Tanzanite Drop Earrings in 14kt Yellow Gold
$63.75
Ross-Simons
Ross-Simons Opal, 1.80ct t.w. Multi-Stone Ring in, White Topaz Silver
A freshly picked flower for your finger, this ring cradles an oval opal in petals of 1.30 ct. t.w. pear-shaped tanzanite and .50 ct. t.w. round green chrome diopside. White topaz accents are sprinkled like shiny drops of dew. Sterling silver ring. Opal...Only $205.00 at Ross-Simons
no photoRoss-Simons Opal, 1.80ct t.w. Multi-Stone Ring in, White Topaz Silver
$205.00
Ross-Simons
 


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