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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (258): Sapphire Untreated-Unheated - Sapphire, Star Sapphire, Color Change Sapphire Clear All
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1 pc
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Click for Product Video (470844)
thumb image of 21.2ct Round Cabochon Grayish Silver Star Sapphire (ID: 470844)
21.23 ct Star Sapphire
14.7 mm
$ 743.05
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1 pc
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Click for Product Video (470842)
thumb image of 10.7ct Oval Cabochon Grayish Silver Star Sapphire (ID: 470842)
10.69 ct Star Sapphire
11.7 x 11.1 mm
$ 374.15
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1 pc
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Click for Product Video (447726)
thumb image of 1.1ct Pear Facet Pinkish Violet Sapphire (ID: 447726)
1.10 ct Sapphire
7.9 x 5.4 mm
$ 529.47
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7 pcs
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thumb image of 0.2ct Round Facet Multicolor Color-Change Sapphire (ID: 401719)
0.22 ct (total 1.56ctw) Color-Change Sapphire
3.4 mm
$ 117.00
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7 pcs
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thumb image of 0.2ct Round Facet Multicolor Color-Change Sapphire (ID: 496679)
0.22 ct (total 1.52ctw) Color-Change Sapphire
3.3 mm
$ 114.00
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8 pcs
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thumb image of 0.2ct Oval Facet Multicolor Color-Change Sapphire (ID: 404062)
0.20 ct (total 1.60ctw) Color-Change Sapphire
4 x 3 mm
$ 120.00
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6 pcs
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thumb image of 0.3ct Oval Facet Multicolor Color-Change Sapphire (ID: 403907)
0.25 ct (total 1.49ctw) Color-Change Sapphire
4.3 x 3 mm
$ 111.75
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20 pcs
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thumb image of 0.2ct Oval Cabochon Blue Sapphire (ID: 471417)
0.22 ct (total 4.48ctw) Sapphire
4.1 x 3.1 mm
$ 93.23
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1 pc
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Click for Product Video (470809)
thumb image of 13.5ct Oval Cabochon Grayish Silver Star Sapphire (ID: 470809)
13.46 ct Star Sapphire
13.7 x 11.6 mm
$ 471.10
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6 pcs
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thumb image of 0.3ct Round Facet Violet to Red Color-Change Sapphire (ID: 401729)
0.30 ct (total 1.77ctw) Color-Change Sapphire
3.7 mm
$ 132.75
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5 pcs
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thumb image of 0.4ct Oval Facet Multicolor Color-Change Sapphire (ID: 403803)
0.35 ct (total 1.77ctw) Color-Change Sapphire
4.9 x 3.7 mm
$ 132.75
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1 pc
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Click for Product Video (470803)
thumb image of 9.4ct Round Cabochon Grayish Silver Star Sapphire (ID: 470803)
9.39 ct Star Sapphire
11.2 mm
$ 328.65
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5 pcs
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thumb image of 0.3ct Oval Facet Multicolor Color-Change Sapphire (ID: 403807)
0.32 ct (total 1.60ctw) Color-Change Sapphire
4.5 x 3.3 mm
$ 120.00
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5 pcs
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thumb image of 0.3ct Round Facet Multicolor Color-Change Sapphire (ID: 403840)
0.29 ct (total 1.44ctw) Color-Change Sapphire
3.6 mm
$ 108.00
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5 pcs
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thumb image of 0.4ct Oval Facet Multicolor Color-Change Sapphire (ID: 403804)
0.37 ct (total 1.85ctw) Color-Change Sapphire
4.7 x 3.7 mm
$ 138.75
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6 pcs
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thumb image of 0.2ct Round Facet Violet to Red Color-Change Sapphire (ID: 401725)
0.23 ct (total 1.39ctw) Color-Change Sapphire
3.4 mm
$ 104.25
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7 pcs
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thumb image of 0.3ct Round Facet Violet to Red Color-Change Sapphire (ID: 401840)
0.28 ct (total 1.93ctw) Color-Change Sapphire
3.8 mm
$ 144.75
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1 pc
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Click for Product Video (470837)
thumb image of 9.4ct Oval Cabochon Grayish Silver Star Sapphire (ID: 470837)
9.39 ct Star Sapphire
11.1 x 10.1 mm
$ 328.65
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6 pcs
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thumb image of 0.2ct Pear Facet Multicolor Color-Change Sapphire (ID: 403908)
0.23 ct (total 1.39ctw) Color-Change Sapphire
4.6 x 3.1 mm
$ 104.25
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10 pcs
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thumb image of 0.2ct Round Facet Violet to Red Color-Change Sapphire (ID: 401848)
0.21 ct (total 2.09ctw) Color-Change Sapphire
3.4 mm
$ 156.75
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5 pcs
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thumb image of 0.3ct Oval Facet Multicolor Color-Change Sapphire (ID: 403801)
0.27 ct (total 1.33ctw) Color-Change Sapphire
4.5 x 3 mm
$ 99.75
Item in Stock
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Sapphire Untreated-Unheated
Sapphire, with its hardness of 9 on Mohs hardness, is second only to diamond, which renders it one of the most valuable and wearable gemstones of all-time. Sapphire is a 'precious four' gem and offers superb brilliance and rich, vibrant colors. Although most sapphire is heated or enhanced in other ways to improve color, clarity and stability, unheated and completely untreated natural sapphire can still be found. Usually unheated sapphire gems are found only in small sizes, but occasionally, large, clean stones are uncovered too. Because unheated sapphire is such a rarity, they are indeed relatively expensive, particularly unheated top-color blue 'Ceylon' sapphire. Unheated, natural sapphire is mostly sourced from Africa, though Australia and parts of Asia are known to produce some fine materials too.

As of recent times, Madagascar and Tanzania are two of the most important sources for fine untreated, unheated sapphire, as is Thailand. Tanzanian sapphire is usually pink to violet in color (often violet-blue), and many of the specimens exhibit very noticeable color change properties. Color-change unheated sapphire can be very expensive and is highly sought-after by both jewelers and gem collectors. Fine quality unheated sapphire gems from Madagascar, as well as Australia, display silk inclusions, which are highly desirable. The silky appearance is cause by rutile inclusions and the presence of such silk is usually a good indicator that the gem has not been heated, since rutile inclusions melt at a much lower temperatures than those at which sapphire is heated. Sapphire is also the official birthstone for those born in the month of September.

Certified Customer Reviews
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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.
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offer military prices
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Trustworthy company & site, great products.
Posted By KM in August, 2018
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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
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Overall Rating -> 10 star ratings
Excellent company with excellent website!
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Overall Rating -> 10 star ratings
Happy with price and ease of purchase. Will tell others
Posted By JJ Kool Juan in August, 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

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