Blue Tanzanite VVS - trillon 0.92ct - Merelani Tanzania. Free shipping. #TZ96

$121.81 $143.30

Shipping to United States: Free

Blue tanzanite.
Size: Trillion
Weight: 0.92 carat
Size: 7 x 7 x 7 mm
Gisements: block D, Mérélani, Tanzania.

Family: Zoïsite
Chemical composition: Calcium and aluminum silicate
Color: Blue-violet

Physical properties
Density: 3.35
Duration: 6.5 - 7
Cleavage: Perfect

Optical properties
Refraction index: 1,691 - 1700
Birefringence: 0.009
Dispersal: 0.030
Pleochroism very strong: purple, blue, brown.
Treatment: heated natural stone to get a better color.
Reference: TZ96

Tanzanite is considered to be the birthstone of December.

As the name suggests, it comes from Tanzania. Its color of a sustained blue to purple is due to the presence of vanadium and chrome in traces, elements foreign to its structure. So it's an allochromatic mineral. If it is heated to 400-500 degrees Celsius, it loses its yellow and brown tones and its blue becomes deeper.

Macro-mode photos sometimes bring out inclusions that are usually not visible to the naked eye.

I send by mail followed, in a bubble wrap, to ensure the arrival of your order safely.
International shipping: All shipments are by standard international mail follow-up.
Please keep in mind that international shipments can take one to three weeks, depending on customs deadlines.

Please contact me for any questions.
Thank you for your visit!

Shipping from France

Processing time

1-3 business days

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

Secure options
  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns, exchanges, and cancellations

Just contact me within: 14 days of delivery

Ship items back to me within: 30 days of delivery

Request a cancellation within: 2 days of purchase

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:

  • Perishable products (like food or flowers)
  • Items on sale

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.

Questions about your order?

Please contact me if you have any problems with your order.

Legal imprint