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GIA Certified 14.98 ct AAAA Cushion (18 x 11 mm) Natural D'Block Tanzanite

Sale price$54,340.00

Item specifics

Condition
New 
Gemstone Type
Tanzanite
Stone Type
Tanzanite
Certified By
GIA
Total Carat Weight (TCW)
14.98
Total Carat Weight
14.98
Size
18.14 x 10.99 x 9.22 mm
Gemstone Color
Bluish Violet
Fancy Color
Bluish Violet
Gemstone Shape
Cushion
Clarity
IF
Gemstone Treatment
Heated
Country/Region of Manufacture
Tanzania, United Republic Of
Brand
DeluxeGems
Item Length
18.14
Item Width
10.99
Item Depth
9.22
Transparency
Transparent
Cut Grade
Excellent
Cut
Excellent
Certification
GIA
Country of Origin
Tanzania, United Republic Of
Grade
AAAA
Luster
Excellent
Natural/Lab-Created
Natural
Number of Pieces
1
Hardness
6.5 Mohs scale
SKU
231004-1K3KRA
Modified Item
No
Gemstone Creation
Natural
Gemstone Form
Polished
Gemstone Clarity Grade
Loupe Clean

Item description from the seller

DeluxeGems Gemstones Payment Options Shipping Options Combine Shipping Easy Return Customer Service Email DeluxeGems Support

GIA Certified 14.98 ct AAAA Extraordinary Cushion Cut (18 x 11 mm) Genuine D'Block Tanzanite Gemstone
FREE GIA Certificate! IF Quality Bluish Violet Tanzanite
100% Natural Genuine Mined from Earth Gemstone!!!
  

Gem Type

Tanzanite

Color Bluish Violet
Shape Cushion
Size (LxWxD) 18.14 x 10.99 x 9.22 mm
Weight 14.98 ct
Grade AAAA
Hardness 6.5
Luster Excellent
Clarity IF
Treatment Heated
Origin Tanzania
RefractiveIndex 1.69-1.70
Specific Gravity 3.35

FL

IF

VVS1

VVS2

VS1

VS2

SI1

SI2

L1

L2

L3

L4

Flawless Internally
Flawless

Very Very Slightly
Imperfect

Very Slightly Imperfect

Slightly Imperfect

Imperfect

Opaque

 

 

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,