Ultra Rare Blue Grandidierite Gemstone from Madagascar, 0.63 cts., 11x4 mm., Fantasy Cut Spike Shape


Shipping to United States: Free

Gem: Grandidierite
Weight: 0.63 cts.
Size: 11.1 x 3.8 x 2.0 mm
Color: Bright Steely Blue
Clarity: VVS
Cut: Fantasy Spike
Locality: Madagascar
Treatment: None

Here is an incredible and truly unique treasure! This is the only Fantasy cut Grandidierite that we know of, and if more are produced, this is the first one ever. Grandidierite is one of the rarest gem minerals in the world. It was first described in 1902, but there has been little of the mineral found until the few years and gem quality material was unheard of until recently. It is a Borosilicate with a hardness of 7.5 which is durable enough for jewelry! Rare gems that are durable enough for jewelry are few and far between. This stone is a gorgeous bright steely blue color! It has exceptional clarity and is nearly flawless! It is a natural Earth mined stone and has not been treated. The stone is stunning in person! This is a true one-of-a-kind and will make an irreplaceable piece of jewelry. This gemstone was created by Brett Kosnar of Kosnar Gem Co., during July 2022. 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.

Customs and import taxes

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Payment Options

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  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns and exchanges

Just contact me within: 7 days of delivery

Ship items back to me within: 14 days of delivery

I don't accept cancellations

But please contact me if you have any problems with your order.

The following items can't be returned or exchanged

Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:

  • Custom or personalized orders
  • Perishable products (like food or flowers)
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  • Intimate items (for health/hygiene reasons)

Conditions of return

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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