Main centres: | 1-3 business days |
Regional areas: | 3-4 business days |
Remote areas: | 3-5 business days |
This is the photo of the actual gemson this auction,
DESCRIPTION | |||
Product type = Natural Mined Tanzanite | Origin = Tanzania | ||
Treatment = Naturaly heated | Hardness = 9 | ||
Shape / cut = Oval | Specific gravity = 2.3 - 3.4 | ||
Colour = medium violetish, blue | Refractive index = 1.69 - 1.70 | ||
Size = 4.6mm x 3.2mm & 4.9mm x 3mm | Chemical Composition = Ca2al3si3o12oh | ||
Clarity = VVS | Crystal structure = Orthorhombic | ||
Quantity = 2 pieces bidding is per gem | Cts = 0.40cts (total): approx .20cts each |
Appraisal
The guideline issued by Bid or Buy for appraisals of any gem is to use the Gemval.com appraisal system. Gemval.com is an international on line appraisal system, their appraisals is not retail and is accepted by BOB to be 30%-40% of overall retail value. This appraisal will be e-mail as a J PEG image to the purchaser.