Ultra Rare Gem Grade Kurnakovite Gemstone from California 0.21 cts.


Shipping to United States: Free

Gem: Kurnakovite
Weight: 0.21 cts.
Size: 5.90 x 3.90 mm.
Color: Colorless
Clarity: I
Cut: Cushion
Locality: Boron, California
Treatment: None

Gem grade Kurnakovite is extremely rare and there are only a hand full of these stones on the planet. It is a hydrated Borate mineral that only occurs from a few localities in the world. The mineral was named after Russian mineralogist and chemist Nikolai Semenovich Kurnakov. The original find was in Kazakhstan in 1940, and only a few other occurrences were found after, most notably in California. Most of the material is opaque and massive, but is rare cases there is gem rough. The mineral is difficult to facet and the rough is always quite small, so good cut stones are treasured. This is a special rare stone and difficult to replace! Enjoy!

Shipping from United States

Processing time

1-2 business days

Estimated shipping times

  • North America : 3 - 7 business days
  • Europe : 5 - 12 business days
  • Asia Pacific : 7 - 14 business days

I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.

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Just contact me within: 7 days of delivery

Ship items back to me within: 14 days of delivery

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Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.

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