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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (5949): Tanzanian Sapphire Gems - Sapphire, Star Sapphire, Color Change Sapphire Clear All
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2 pcs
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0.5ct Cushion-Cut Yellow Golden Sapphire Gem (ID: 406019)
0.52 ct (total 1.04ctw) Sapphire
4.1 x 4 mm
$ 39.90
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6 pcs
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0.3ct Octagon Step Cut Pink Sapphire Gem (ID: 450650)
0.33 ct (total 1.97ctw) Sapphire
5.1 x 3.1 mm
$ 78.80
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1 pc
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0.4ct Princess-Cut Yellow Sapphire Gem (ID: 502064)
0.38 ct Sapphire
3.8 x 3.7 mm
$ 15.20
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2 pcs
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0.7ct Oval Facet Yellow Golden Sapphire Gem (ID: 443610)
0.73 ct (total 1.46ctw) Sapphire
6 x 5 mm
$ 72.55
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1 pc
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0.8ct Oval Facet Green Sapphire Gem (ID: 460055)
0.78 ct Sapphire
5.9 x 4.9 mm
$ 53.98
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10 pcs
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0.2ct Oval Facet Purple Pink Sapphire Gem (ID: 423585)
0.23 ct (total 2.28ctw) Sapphire
4.2 x 3.2 mm
$ 91.20
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4 pcs
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0.4ct Oval Cabochon Multicolor Sapphire Gem (ID: 496338)
0.42 ct (total 1.67ctw) Sapphire
4.8 x 3.8 mm
$ 33.40
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1 pc
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Click for Product Video (448581)
1.3ct Cushion-Cut Pinkish Purple Sapphire Gem (ID: 448581)
1.26 ct Sapphire
7 x 5.8 mm
$ 607.32
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10 pcs
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0.2ct Princess-Cut Pink Sapphire Gem (ID: 411828)
0.16 ct (total 1.58ctw) Sapphire
2.9 x 2.9 mm
$ 71.10
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2 pcs
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0.3ct Round Mixed-Cut Reddish Orange Sapphire Gem (ID: 496450)
0.26 ct (total 0.51ctw) Sapphire
3.3 mm
$ 20.40
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8 pcs
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0.3ct Round Cabochon Multicolor Sapphire Gem (ID: 495724)
0.32 ct (total 2.53ctw) Sapphire
3.9 mm
$ 50.60
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6 pcs
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0.2ct Diamond-Cut Multicolor Sapphire Gem (ID: 409374)
0.22 ct (total 1.29ctw) Sapphire
3.7 mm
$ 45.15
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2 pcs
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0.3ct Round Mixed-Cut Reddish Orange Sapphire Gem (ID: 496448)
0.26 ct (total 0.52ctw) Sapphire
3.3 mm
$ 20.80
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2 pcs
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0.7ct Round Facet Orange Sapphire Gem (ID: 446333)
0.74 ct (total 1.47ctw) Sapphire
5.2 mm
$ 73.44
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4 pcs
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0.1ct Octagon Step Cut Multicolor Sapphire Gem (ID: 493093)
0.14 ct (total 0.55ctw) Sapphire
3.6 x 2.5 mm
$ 20.83
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15 pcs
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0.1ct Princess-Cut Multicolor Sapphire Gem (ID: 411208)
0.10 ct (total 1.57ctw) Sapphire
2.5 x 2.5 mm
$ 62.80
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2 pcs
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0.4ct Marquise Facet Yellow Golden Sapphire Gem (ID: 429706)
0.44 ct (total 0.88ctw) Sapphire
6.9 x 3.6 mm
$ 21.49
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1 pc
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0.6ct Round Facet Yellow Golden Sapphire Gem (ID: 453308)
0.62 ct Sapphire
4.8 mm
$ 36.21
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2 pcs
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0.7ct Oval Facet Yellow Golden Sapphire Gem (ID: 444182)
0.70 ct (total 1.40ctw) Sapphire
6 x 5 mm
$ 70.32
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4 pcs
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0.1ct Octagon Step Cut Multicolor Sapphire Gem (ID: 493050)
0.14 ct (total 0.57ctw) Sapphire
3.7 x 2.3 mm
$ 21.59
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7 pcs
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0.2ct Round Facet Multicolor Color-Change Sapphire Gem (ID: 496679)
0.22 ct (total 1.52ctw) Color-Change Sapphire
3.3 mm
$ 114.00
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
This site always has beautiful stones to choose from and you will get the actual gem that is pictured. The shipping is fast and reasonably priced.
Posted By CAC in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have not gotten my gems, but when i do i will be very happy, yet i did not like you had to pay $15 extra for faster shipping
Posted By Jack in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I love GemSelect, personally. I browse their site almost daily to see all the new stones available. Their selection is pretty amazing. The quality isn't always the highest and the cut of the stones isn't always perfect. But for the price, and if you look hard enough, you can find a real gem, so to speak.
Posted By Patrick in September, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I would recommend to a friend because of the quality of the products purchased. The gemstone quality is very high and the gems purchased are beautiful. Any friends interested in having custom jewelry made would definitely be recommended to the site. Also, every shipment is handled with care and I am very pleased with that.
Posted By Isaiah in September, 2018
Source: Bizrate
Overall Rating -> 9 star ratings
Gem Select has an excellent selection of gemstones, including some rare ones. Prices are as expected.
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Overall Rating -> 10 star ratings
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Posted By Mariana in September, 2018
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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

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

Note: 1ct = 0.2g

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