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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (5000): Tanzanian Sapphire Gems - Sapphire, Star Sapphire, Color Change Sapphire Clear All
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21 pcs
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Multicolor Sapphire Gem - 0.2ct Princess-Cut (ID: 354246)

Square Multicolor Sapphire

0.16 ct (total 3.26ctw)
2.7 x 2.7 mm
$ 182.56
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4 pcs
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Golden Orange Sapphire Gem - 0.5ct Round Facet (ID: 460855)

Round Orange Sapphire

0.52 ct (total 2.08ctw)
4.6 mm
$ 124.90
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1 pc
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Pinkish Violet Sapphire Gem - 1.4ct Pear Facet (ID: 447848)

Pear Violet Sapphire

1.4ct
7.7 x 5.8 mm
$ 688.32
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4 pcs
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Multicolor Sapphire Gem - 0.7ct Octagon Facet (ID: 444395)

Octagon / Emerald Cut Multicolor Sapphire

0.66 ct (total 2.62ctw)
6 x 4.1 mm
$ 315.87
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20 pcs
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Multicolor Sapphire Gem - 0.3ct Octagon / Scissor Cut (ID: 349968)

Octagon / Emerald Cut Multicolor Sapphire

0.30 ct (total 6.09ctw)
5 x 3 mm
$ 213.15
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1 pc
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Orange Sapphire Gem - 1.9ct Oval Facet (ID: 453011)

Oval Orange Sapphire

1.9ct
8.1 x 6.2 mm
$ 283.30
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4 pcs
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Multicolor Sapphire Gem - 0.5ct Octagon / Scissor Cut (ID: 336598)

Octagon / Emerald Cut Multicolor Sapphire

0.49 ct (total 1.95ctw)
5 x 4 mm
$ 68.25
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6 pcs
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Multicolor Sapphire Gem - 0.2ct Octagon / Scissor Cut (ID: 330782)

Octagon / Emerald Cut Multicolor Sapphire

0.23 ct (total 1.37ctw)
4 x 3 mm
$ 47.95
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2 pcs
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Green Sapphire Gem - 0.8ct Oval Facet (ID: 459807)

Oval Green Sapphire

0.76 ct (total 1.52ctw)
5.9 x 4.9 mm
$ 105.18
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21 pcs
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Multicolor Sapphire Gem - 0.2ct Princess-Cut (ID: 353694)

Square Multicolor Sapphire

0.15 ct (total 3.09ctw)
2.8 x 2.8 mm
$ 123.60
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1 pc
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Purple Sapphire Gem - 1.4ct Pear Facet (ID: 447746)

Pear Violet Sapphire

1.4ct
8.3 x 5.7 mm
$ 683.50
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1 pc
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Purple Sapphire Gem - 1.8ct Pear Facet (ID: 447723)

Pear Violet Sapphire

1.8ct
9.2 x 6.3 mm
$ 885.67
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1 pc
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Pinkish Violet Sapphire Gem - 1.2ct Pear Facet (ID: 447865)

Pear Violet Sapphire

1.2ct
7.8 x 5.8 mm
$ 572.79
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21 pcs
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Multicolor Sapphire Gem - 0.2ct Princess-Cut (ID: 353688)

Square Multicolor Sapphire

0.15 ct (total 3.22ctw)
2.8 x 2.8 mm
$ 128.80
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4 pcs
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Multicolor Sapphire Gem - 0.7ct Octagon / Scissor Cut (ID: 336532)

Octagon / Emerald Cut Multicolor Sapphire

0.66 ct (total 2.64ctw)
5 x 4 mm
$ 92.40
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4 pcs
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Orange Sapphire Gem - 0.6ct Round Facet (ID: 460673)

Round Orange Sapphire

0.60 ct (total 2.39ctw)
4.9 mm
$ 143.52
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5 pcs
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Multicolor Sapphire Gem - 0.4ct Octagon / Scissor Cut (ID: 375026)

Octagon / Emerald Cut Multicolor Sapphire

0.38 ct (total 1.92ctw)
4.9 x 3.1 mm
$ 81.50
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15 pcs
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Multicolor Sapphire Gem - 0.3ct Pear Facet (ID: 324895)

Pear Multicolor Sapphire

0.27 ct (total 4.06ctw)
4.9 x 3.1 mm
$ 101.50
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4 pcs
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Multicolor Sapphire Gem - 0.7ct Octagon Facet (ID: 444391)

Octagon / Emerald Cut Multicolor Sapphire

0.67 ct (total 2.69ctw)
6.1 x 4 mm
$ 324.31
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2 pcs
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Yellow Sapphire Gem - 0.7ct Round Facet (ID: 423726)

Round Yellow Sapphire

0.73 ct (total 1.45ctw)
5.2 mm
$ 181.40
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1 pc
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Pink Sapphire Gem - 1.2ct Trillion Facet (ID: 447797)

Trillion Pink Sapphire

1.2ct
6.9 x 6.5 mm
$ 572.79
Item in Stock
Tanzanian Sapphire Gems
Tanzanian sapphire gems have proven to be very popular as of recent times. Many of the sapphires from Tanzania entering the market are untreated gems which are getting rarer and pricier every year. Tanzania is best known for tanzanite and rare tsavorite garnet, but over recent years, Tanzania has become one of the most dominant sources for gem-quality sapphire. Some Tanzanian material often exhibits a color-change property, typically shifting from violet to blue. The main limitation with unheated Tanzanian sapphire gems is that they are usually available only in smaller sizes, but many new Tanzanian mining sources have revealed much larger stones, often weighing 1-2 carats or more.

The Songea region of Tanzania is also becoming one the most important sources for fine fancy colored sapphire, particularly due to high levels of magnesium. It is the magnesium which results in a wide range of fancy sapphire colors. Many of the Songea sapphires respond very well to beryllium heat enhancement, producing some stunning colors. In fact, Tanzanian Songea sapphire gems have become so popular recently, that dealers trade them under names such as 'sunset ruby', but technically, they are not rubies at all since the colors are obtained through heat treatment with beryllium. In order to be ruby, it should be naturally red. In addition to Songea region, the Tunduru area near bordering Mozambique, is also a very well-known source for its quality sapphire deposits. Although there are many active sapphire mining areas in Tanzania already, most mining is still on a small scale, which means there is still much to see from Tanzania in the upcoming years.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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