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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (134): Unheated Sapphire Sapphire, Star Sapphire, Color Change Sapphire Clear All
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ID: 3751701 pcs
1.43ct Sapphire
7.27mm x 5.56mm x 4.20mm
USD 1820.35
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ID: 4037646 pcs
1.45ctw Color-Change Sapphire
3.47mm x 2.40mm
USD 108.75
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ID: 2525644 pcs
2.97ctw Sapphire
5.82mm x 3.76mm
USD 202.70
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ID: 4017287 pcs
2.20ctw Color-Change Sapphire
3.84mm x 2.47mm
USD 165.00
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ID: 4018417 pcs
1.62ctw Color-Change Sapphire
4.02mm x 3.07mm x 2.10mm
USD 121.50
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ID: 2696163 pcs
2.83ctw Sapphire
5.99mm x 4.02mm
USD 133.72
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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: 4037636 pcs
2.13ctw Color-Change Sapphire
4.78mm x 3.31mm x 2.52mm
USD 159.75
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ID: 4016275 pcs
1.07ctw Color-Change Sapphire
4.21mm x 3.15mm x 1.79mm
USD 80.25
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ID: 4037454 pcs
1.76ctw Color-Change Sapphire
5.17mm x 4.08mm x 2.58mm
USD 132.00
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ID: 2156446 pcs
2.77ctw Sapphire
6.99mm x 3.70mm x 2.61mm
USD 203.60
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ID: 4039765 pcs
1.12ctw Color-Change Sapphire
4.28mm x 3.22mm x 1.98mm
USD 84.00
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ID: 3751731 pcs
1.35ct Sapphire
7.09mm x 5.26mm x 4.02mm
USD 1718.51
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ID: 4038045 pcs
1.85ctw Color-Change Sapphire
4.67mm x 3.66mm x 2.37mm
USD 138.75
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ID: 4039735 pcs
0.77ctw Color-Change Sapphire
4.01mm x 2.83mm x 1.86mm
USD 57.75
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ID: 4037434 pcs
1.58ctw Color-Change Sapphire
5.15mm x 3.55mm x 2.34mm
USD 118.50
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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: 4016265 pcs
0.98ctw Color-Change Sapphire
3.94mm x 2.96mm x 1.94mm
USD 73.50
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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: 4017296 pcs
1.77ctw Color-Change Sapphire
3.65mm x 2.48mm
USD 132.75
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ID: 2123546 pcs
1.49ctw Sapphire
2.75mm x 2.68mm x 1.94mm
USD 156.45
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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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