Sininen Paraiba-turmaliini - 2.76 ct

Kuvaus
Sininen Paraiba-turmaliini - 2.76 ct
Ovaali - ALGT (B)

Report: A.LG.T. (Antwerp Laboratory for Gemstone Testing)
Certificate Nº 67463377
Species: Tourmaline, natural
Variety: Paraiba Tourmaline, natural.
Weight: 2.76 carats
Color: Blue
Shape & Cut: Oval, mixed cut
Measurements: 9.97 x 8.01 x 5.05 mm
Transparency: Transparent
Treatment: Paraiba Tourmaline can be heated to provide its color. Whether or not this gemstone has been enhanced by heating cannot currently be determined.
Origin: Africa
Country of Origin is an opinion offered by the seller of this item. This opinion is not substantiated by an official laboratory.
Refractive index: 1.614-1.666
Hardness: 7.0 – 7.5 Mohs scale
Comments: This copper and manganese bearing tourmaline may be called "Paraìba tourmaline" in the trade. The name "Paraìba" comes from the Brazilian locality where this gem was first mined, however today it may come from several localities.
Note: This gemstone comes inside an ALGT lab stone holder (not sealed).
Internal Reference: DVGMCW548
Shipping method: It will be well packaged and registered shipping via Correos. Any extra expenses due to your country's customs office will be responsibility for the buyer.

Kohteen tiedot
Kivi
Paraiba-turmaliini
Kokonaispaino karaateissa
2.76
Leikkaus ja muoto
Ovaali
Merkki
ALGT (B)
Väri
Sininen
Käsittely
Lämmitetty ilman käsittelyn merkkejä
Selkeys
Läpinäkyvä
Suljettu
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