Natural Grandidierite 17.08 ct (16.8 x 15.5 x 8.6 mm)


Gemstone: Grandidierite

Size(MM):16.8 x 15.5 x 8.6

Weight(TCW): 17.08


Shape: OVAL


Origin: TURKEY

Natural/Lab-Created: NATURAL

Treatment: Unheated

Hardness: 6.5 – 7

Lot N0(SKU): 18460-1


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About Gemstone

Grandidierite is a unique and rare mineral that was first established in 1902 in southern Madagascar. The crystal was named in celebration of French explorer Alfred Grandidier who inquired about the natural history of Madagascar. Grandidierite appears bluer in color the more iron they contain.

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Clarity Scale

  • IF (Internally Flawless) – “Loupe-Clean” or 100% Clean – Exceptional quality with no inclusion(s) visible using a 10X loupe.
  • VVS (Very, Very Small Inclusions) – “Near Loupe-Clean” ~ Excellent quality with only slight inclusion(s) or irregularity with a 10X loupe.
  • VS (Very Small Inclusions) – “Eye-Clean” ~ No visible inclusion may at the corner.
  • SI (Small Inclusions) – “Near Eye-Clean” ~ Inclusion(s) may be seen with the naked eye but do not affect or interfere with the overall beauty of the gem.
  • I (Included) – Having luster, transparent, but included some, but not broken.
  • S (Slightly) – “Included-Declasses”~ Heavily Included -stones.




The shipping is completely free for the standard shipping options which will take around 3-4 weeks to arrive on your doorstep. For customers who want the product to be received to the United States, we use the USPS carrier which is completely free and your estimated delivery is 3-5 Business days. For customers who are not in the USA, don’t worry if you want the product sooner, we also provide other shipping services. Which are as follows DHL shipping ($25.00), and FedEx shipping ($25.00). Please contact us if you’re interested.


Standard Shipping: Free

USPS Shipping: Free

DHL Shipping: $25.00

FedEx Shipping: $25.00

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We provide 4 Gem labs as shown below. Please contact us if you’re interested.





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Custom Jewellery

If you’re interested in having your own jewelry design with this gemstone or want custom jewelry with other gemstones, please contact us. we provide Gold, Silver, Platinum, and other more at a reasonable price.