228

3.12 ct PGTL Certified Best Octagon Shape (11 x 6 mm) Bluish Violet Tanzanite

Currency:USD Category:Firearms & Military Start Price:320.00 USD Estimated At:1,250.00 - 2,500.00 USD
3.12 ct PGTL Certified Best Octagon Shape (11 x 6 mm) Bluish Violet Tanzanite
All bids are final. Please review your selections and ask questions before placing bids. All items are as presented without warranty or claim.

We do, however, stand behind our reputation and will make good on any sold item that differs with its photos and description. We work hard to sell the best of the best and provide the best customer service.

Shipping and handling costs will be calculated and added to your final invoice for your won lots. We use major shipping providers and rates.
Certified by PGTL Precious Gem Testing Laboratory – PGTL State Of The Art gem testing facility with the advantage of advanced testing equipment: Gem Type: Tanzanite Color: Bluish Violet Shape: Octagon Size (LxWxD): 10.70 x 6.15 x 4.87 mm Weight: 3.12 ct Grade: AAA Hardness: 6.5 Luster: Excellent Clarity: VVS Treatment: Heated Origin: Tanzania RefractiveIndex: 1.69-1.70 Specific Gravity: 3.35 Tanzanite Mohs Hardness - 6.5-7 Found in - Mererani, Tanzania History - Tanzanite is a blue zoisite which is trichroic - meaning it often shows different colors when viewed from different directions. In 1967 a rich violet-blue transparent type of zoisite was discovered in Tanzania. The stone was named after this, the only country they are found, two years later. Tanzanites are now found in blue, green,yellow, pink, and brwon, but all will change to a blue color when heated. The stone was added to the official December birthstone list in 2004. It has a low resistance to ultrasound, therefore, do not clean with ultrasonic cleaner. Zoisite was first discovered by Baron von Zois in Austria, and called Saualpite. Metaphysical - thought to stabilize emotions, for grounding, security, brings happiness, enhances communicative abilities