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Black Star Sapphire Gemstone Loose 6.21CT

Name: Black Star Sapphire Gemstone Loose 6.21CT
Brand: jewelclimbplus
SKU: 1055566
Price: 31100.0 JPY
Availability: InStock

About quality

color stone reference table

Please look.

We spend a lot of time on quality checks.

Quality

F: A quality that makes it difficult to see inclusions with a 10x magnifying glass.

VS: Quality that makes it difficult to see the inclusions with the naked eye.

SI: Quality that can be seen with the naked eye * Including fine chips and scratches that are difficult to see with the naked eye and lack of fabric

hue

S: A top-class color for the gem type or a rare color that does not exist in large numbers

A: A quality color that falls within the beautiful or wonderful class of the gem type

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◆◆◆◆For non-Japanese buyer◆◆◆ [With loose certificate] If there is a statement like the above, the product has been inspected in Japan. be attached.

¥31,100 円（税込）

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Product variants

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A mysterious crystal with a strong presence
Black star sapphire 6.21ct

RECOMMENDED POINTS
A mysterious six-pointed star appears on the glossy crystal
Black star sapphire from Chanthaburi, Thailand.

Black star sapphires from the Chanthaburi region of Thailand are attractive for the stars that appear in the glossy, jet-black crystals!

The asterism in black sapphires is not caused by the silk inclusions found in rubies and sapphires from Myanmar and Sri Lanka, but rather by the effect of light on the lamellar structure caused by the inclusion of hematite (iron oxide).

In addition, mining in Chanthaburi is currently strictly restricted, and the amount of gold mined is quite small, so it is said that what is being traded on the market is only the stock that has been left up to now.

A dark, opaque, lustrous black star sapphire that displays a mysterious asterism effect due to the lamellar structure of iron oxide!

This is an attractive loose stone with a beautifully lustrous crystal and a sharp, mysterious star.

Grab a penlight and enjoy the special effects created by nature.

◇Gemstone: Black Star Sapphire ◇Weight 6.21CT ◇Dimensions: 8.91 x 11.21 x 5.10 mm ◇Origin: Thailand ◇Shape: Oval cabochon ◇Hardness 9 ◇Quality -- ◇Hue A ◇Notes: Loose stone certificate included ◇ "About the quality and hue notation of colored stones"