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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (6025): Tanzanian Sapphire Gems - Sapphire, Star Sapphire, Color Change Sapphire Clear All
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2 pcs
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thumb image of 0.6ct Oval Facet Golden Yellow Sapphire (ID: 444688)
0.64 ct (total 1.28ctw) Sapphire
5.9 x 4.9 mm
$ 64.29
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20 pcs
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thumb image of 0.1ct Princess-Cut Multicolor Sapphire (ID: 347409)
0.08 ct (total 1.60ctw) Sapphire
2.3 x 2.3 mm
$ 40.00
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1 pc
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thumb image of 1.3ct Oval Facet Yellow Golden Sapphire (ID: 453290)
1.32 ct Sapphire
7.9 x 6.1 mm
$ 192.76
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2 pcs
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thumb image of 0.7ct Round Facet Yellow Orange Sapphire (ID: 446242)
0.68 ct (total 1.35ctw) Sapphire
5 mm
$ 67.45
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10 pcs
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thumb image of 0.2ct Diamond-Cut Yellow Golden Sapphire (ID: 424005)
0.20 ct (total 2.00ctw) Sapphire
3.4 mm
$ 72.00
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6 pcs
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thumb image of 0.5ct Round Cabochon Multicolor Sapphire (ID: 496428)
0.53 ct (total 3.16ctw) Sapphire
4.8 mm
$ 56.88
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6 pcs
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thumb image of 0.3ct Marquise Facet Violet Pink Sapphire (ID: 359286)
0.25 ct (total 1.48ctw) Sapphire
6 x 3 mm
$ 66.60
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1 pc
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thumb image of 0.9ct Round Facet Pinkish Violet Sapphire (ID: 468012)
0.86 ct Sapphire
5.6 mm
$ 98.83
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2 pcs
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thumb image of 0.5ct Round Facet Yellowish Green Sapphire (ID: 496564)
0.46 ct (total 0.91ctw) Sapphire
4.5 mm
$ 49.77
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2 pcs
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thumb image of 0.3ct Round Mixed-Cut Reddish Orange Sapphire (ID: 496452)
0.25 ct (total 0.49ctw) Sapphire
3.3 mm
$ 19.60
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4 pcs
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thumb image of 0.3ct Round Cabochon Violet Pink Sapphire (ID: 496340)
0.32 ct (total 1.29ctw) Sapphire
4.1 mm
$ 70.78
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2 pcs
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thumb image of 0.3ct Round Mixed-Cut Reddish Orange Sapphire (ID: 496453)
0.25 ct (total 0.49ctw) Sapphire
3.4 mm
$ 19.60
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1 pc
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thumb image of 1ct Oval Facet Green Sapphire (ID: 462886)
1.02 ct Sapphire
6.2 x 5.3 mm
$ 72.18
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4 pcs
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thumb image of 0.7ct Round Facet Yellow Golden Sapphire (ID: 460895)
0.67 ct (total 2.69ctw) Sapphire
4.8 mm
$ 161.53
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2 pcs
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thumb image of 0.3ct Round Mixed-Cut Reddish Orange Sapphire (ID: 496446)
0.25 ct (total 0.50ctw) Sapphire
3.3 mm
$ 20.00
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1 pc
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thumb image of 0.7ct Round Facet Yellow Golden Sapphire (ID: 453179)
0.67 ct Sapphire
5 mm
$ 39.13
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2 pcs
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thumb image of 0.7ct Oval Facet Green Sapphire (ID: 459808)
0.74 ct (total 1.48ctw) Sapphire
6 x 5 mm
$ 102.42
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6 pcs
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thumb image of 0.3ct Octagon Step Cut Multicolor Sapphire (ID: 462107)
0.32 ct (total 1.93ctw) Sapphire
4.8 x 2.9 mm
$ 77.70
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2 pcs
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thumb image of 0.7ct Oval Facet Golden Yellow Sapphire (ID: 444326)
0.65 ct (total 1.30ctw) Sapphire
5.9 x 4.9 mm
$ 65.30
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25 pcs
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thumb image of 0.2ct Marquise Facet Red Orange Sapphire (ID: 350438)
0.18 ct (total 4.52ctw) Sapphire
4.6 x 2.3 mm
$ 113.00
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6 pcs
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thumb image of 0.1ct Baguette Step Cut Pink Sapphire (ID: 493795)
0.12 ct (total 0.69ctw) Sapphire
3.3 x 2.1 mm
$ 20.20
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.
Certified Customer Reviews
Overall Rating -> 10 star ratings
I have bought several stones and am very happy with the price points, selection and speed of delivery. Sometimes the quality is not quite what I expected but given the prices, I am overall satisfied.
Posted By in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
offer military prices
Posted By Frobb1968 in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Trustworthy company & site, great products.
Posted By KM in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have been ordering from GemSelect for at least 6 years. Every single order was perfect - every item was as advertized, in perfect condition and arrived well within the specified time frame. I have recommended them to several friends.
Posted By Jim in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Excellent company with excellent website!
Posted By Marcy in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Happy with price and ease of purchase. Will tell others
Posted By JJ Kool Juan in August, 2018
Source: Bizrate
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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

Size Comparison Chart