0.860Cts Bluish Green Certified Natural store Grandidierite Transparent Oval Gemstones

PRODUCT DESCRIPTION

Gem Type : NATURAL GRANDIDIERITE GEMSTONES
Carat Weight : 0.860Cts
Size: (MM) : 7.5 X 5.8 X 2.7 MM
Quantity : 1 PC'S
Shape : OVAL FACETED CUT
Color : BLUISH GREEN
Clarity : VSI - TRANSPARENT
Origin : MADAGASCAR
Treatment : NONE/UNHEATED

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GRANDIDIERITE (NATURAL GRANDIDIERITE GEMSTONES)

Grandidierite is a very rare mineral that was first discovered in southern Madagascar in the early 20th century.
Since grandidierite is quite hard, high quality material has been cut as gemstones, making it one of the very rarest gems, in a class with varieties like benitoite, painite, taaffeite and jeremejevite.
You will often see grandidierite included in lists of the 10 rarest gem varieties in the world.

Grandidierite is an extremely rare mineral store and gem that was first discovered in 1902 in southern Madagascar.
The mineral was named in honor of French explorer Alfred Grandidier (1836–1912) who studied the natural history of Madagascar.
Grandidierite is considered one of the rarest and most expensive gemstones in existence. It can fetch prices up to $20,000 per carat.

Mohs scale hardness: 7.5
Optical properties: Biaxial (-)
Space group: Pbnm
Refractive index: 1.583 - 1.639
Crystal class: Dipyramidal (mmm); H-M symbol: (2/m 2/m 2/m)
Crystal system: OrthorhombicB
Dispersion: strong r < v

Reasons to Buy from US :

## All our items are in stock and will ship immediately after we receive complete payment.

## All pictures displayed are actual pictures of the gemstone on sale. (We Do Not Alter Pictures In Any Ways to Show You Better Pictures).

## Lab Certificates From Any Labs In Bangkok Is Provided On Request. From The Labs of Your Choice In Bangkok, Thailand. (Buyer Pays For The Lab Fees).

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