BL0040 : 21.95ct Black Star Sapphire
$ 1,593
Loose Black Star Sapphire Gemstone Certified Black Star Sapphire
Black Star Sapphire price per carat $ 73
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| Type | Natural Black Star Sapphire |
|---|---|
| Piece(s) | 1 |
| Weight (ct) | 21.95 |
| Shape | Oval |
| Treatment | Unheated |
| Clarity | O |
| Size (mm) | 17.30 x 12.90 x 8.80 |
| Origin | Thailand |
| Lab | None |
| Cert no. | None |
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All our items are 100% Natural Gemstones – no lab or synthetic.
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Color Scheme
Black
This color scheme is generated by the system using the colors from the product image.
*For Reference only
CLARITY UNDERSTANDING
O
Opaque (O): The stone allows no light to pass through.Gemstone Shape
Oval
This is the geometric shape for the gemstone. Some shapes has variations due to dimension.
GEMSTONE CUT TYPE
Cabochon
Cut to perfection to maintain high quality products in our inventory.
Transparent Pricing
Our Gemstones are cut & polished by the same craftsman who make gemstones luxury brands, but sold at a fraction of the price.
We avoid traditional 10x mark-ups by being 100% transparent in our pricing and offer mine-to-market business model.
Gem Certification By
We provide gemstone certification service for all our gemstones and use only reputed labs for certification. Our partnered labs have been in the gem industry for very long time and we do not recommend any other lab that is not mentioned here for certification.
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United States
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THAILAND
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Identifying a Star Sapphire
The key feature that distinguishes a star sapphire from any other forms of sapphire is the asterism that gives the stone its name. Due to its hardness and durability, this gemstone is practically unmistakable, although there are several other gems that have been known to occur with similar luster and color. The most mistaken gemstones are Star Garnet and Star Diopside.
Origins and Sources
There are many star sapphire deposits around the world, in locations such as Africa and Brazil, but the most important deposits today are in Australia, Myanmar, Sri Lanka and Thailand.
Color
Star Sapphires are the same famous blue as regular sapphires. They can also be found in pink, yellow, orange, green, lavender and black. Iron and titanium make blue stones while vanadium creates violets to purple colored stones. Yellow and green hues and tones are created by a small amount of iron and pink-reddish tones are created by chromium. Blue is the most desired color, and the more vivid and intense, the more desired it becomes. Star sapphires from Thailand are famed for showing a golden star instead of the more common white.
Clarity
Star sapphire are commonly opaque, although there are some specimens which exhibit some translucency, but this are very fine specimens. The asterism is created by a perfectly aligned needle-like rutile inclusions. They become a vitreous to silky luster with the right cut and polish.
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