BL0040 : 21.95ct Black Star Sapphire

US$ 1,593

Rated 5.0 out of 5 based on 347 customer ratings

Based on 390 Reviews

Loose Black Star Sapphire Gemstone Certified Black Star Sapphire
Black Star Sapphire price per carat $73

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Gem 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 /
Cert no. :
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 /
Cert no. :

In stock

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SKU: BL0040 Category: Tags: ,
BL0040 : 21.95ct Black Star Sapphire

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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

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BL0040 Gemstone Color Scheme

CLARITY UNDERSTANDING


Gemstone clarity scale

O

Opaque (O): The stone allows no light to pass through.

Gemstone Shape


Gemstone Shape Chart

Oval

This is the geometric shape for the gemstone. Some shapes has variations due to dimension.

GEMSTONE CUT TYPE


Gemstone Cut

Cabochon

Cut to perfection to maintain high quality products in our inventory.

Transparent Pricing


Our Gemstones are cut & polishd 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.

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$1,593

STAR LANKA PRICE

$3,699

ESTIMATE RETAIL PRICE

BL0040 : 21.95ct Black Star Sapphire
BL0040 : 21.95ct Black Star Sapphire
BL0040 : 21.95ct Black Star Sapphire
BL0040 : 21.95ct Black Star Sapphire

United States

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InternationaL

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THAILAND

  • Free Express shipping on all Orders (Estimate Delivery : 1 days)
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TRADE NAME
SAPPHIRE
STAR SAPPHIRE
Mineral : Crystalline
Mohs Hardness : 9.0
Refractive Index : 1.76 – 1.77
Specific Gravity : 3.97 - 4.08

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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6 days ago
Holly F.us

Lovely stone. Thank you.

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6 days ago
Anonymous

It’s all good

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6 days ago
Anonymous

It’s all good.

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1 week ago
Anonymousus

Fast shipping and friendly service

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Brigitte D.at

Perfect service right from the start, very fast delivery

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Asher H.au

We have come to experience the same quality of service every time with Starlanka. They are always friendly, helpful and speedy.

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