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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (138): Unheated Sapphire Sapphire, Star Sapphire, Color Change Sapphire Clear All
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ID: 4017226 pcs
1.91ctw Color-Change Sapphire
3.87mm x 2.52mm
USD 143.25
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ID: 2123676 pcs
1.80ctw Sapphire
2.84mm x 2.83mm x 2.09mm
USD 189.75
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ID: 4038075 pcs
1.60ctw Color-Change Sapphire
4.47mm x 3.31mm x 2.49mm
USD 120.00
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ID: 4037484 pcs
1.94ctw Color-Change Sapphire
5.24mm x 3.75mm x 2.69mm
USD 145.50
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ID: 4017266 pcs
1.13ctw Color-Change Sapphire
3.39mm x 1.93mm
USD 84.75
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ID: 40185010 pcs
2.01ctw Color-Change Sapphire
3.97mm x 2.97mm x 1.97mm
USD 150.75
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ID: 4038015 pcs
1.33ctw Color-Change Sapphire
4.51mm x 2.98mm x 2.34mm
USD 99.75
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ID: 2156426 pcs
1.91ctw Sapphire
6.09mm x 3.18mm x 2.05mm
USD 130.36
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ID: 2696253 pcs
2.29ctw Sapphire
5.74mm x 3.96mm
USD 113.36
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ID: 4039177 pcs
2.46ctw Color-Change Sapphire
3.99mm x 2.61mm
USD 184.50
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ID: 40409515 pcs
2.89ctw Color-Change Sapphire
3.80mm x 2.88mm x 1.83mm
USD 216.75
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ID: 40406410 pcs
2.00ctw Color-Change Sapphire
3.95mm x 2.98mm x 1.84mm
USD 150.00
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ID: 2267026 pcs
1.12ctw Sapphire
2.93mm x 2.92mm x 2.01mm
USD 211.00
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ID: 4040284 pcs
0.87ctw Color-Change Sapphire
3.36mm x 1.92mm
USD 65.25
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ID: 4039096 pcs
1.85ctw Color-Change Sapphire
4.55mm x 3.53mm x 2.61mm
USD 138.75
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ID: 4039147 pcs
1.36ctw Color-Change Sapphire
3.33mm x 2.09mm
USD 102.00
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ID: 40184910 pcs
2.54ctw Color-Change Sapphire
4.30mm x 3.28mm x 1.93mm
USD 190.50
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ID: 2696303 pcs
2.32ctw Sapphire
6.12mm x 3.85mm
USD 114.84
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ID: 4039775 pcs
1.11ctw Color-Change Sapphire
4.08mm x 3.18mm x 1.96mm
USD 83.25
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ID: 2696363 pcs
2.31ctw Sapphire
5.74mm x 3.96mm
USD 114.35
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ID: 4038045 pcs
1.85ctw Color-Change Sapphire
4.67mm x 3.66mm x 2.37mm
USD 138.75
Item in Stock
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Unheated Sapphire
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.

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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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