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01/04/2026 12:05 am

GIA Certified 11.55 ct AAAA Cushion (16 x 11 mm) Natural D'Block Tanzanite

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Details
SKU
231006
Dimensions (mm)
15.17 x 10.8 x 7.96mm
Weight (cts)
11.55
Certificate Gem Lab
GIA
Treatment
Heat Treatment
Shape
Cushion
Type
Faceted
Clarity
VVS
Certified Gemstones
Yes
Colours
Description

GIA Certified 11.55 ct AAAA Superb Cushion Cut (16 x 11 mm) Genuine D'Block Tanzanite Gemstone
FREE GIA Certificate! IF Quality Bluish Violet Tanzanite
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Gem Type: Tanzanite
Weight: 11.55 Carat
Measurements (Length x Width x Height): 15.79 x 10.80 x 7.96 mm
Shape: Cushion
Color: Bluish Violet
Clarity: IF
Treatment: Heated
Luster: Excellent
Grade: AAAA
Transparency: Transparent
Origin (Mined from): Tanzania
Hardness: 6.5
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This is 100% Natural Genuine and Mined from Earth Stone. Not man-made materials.
This stone can be used for custom made Ring, Pendant, Necklace and Other Jewelry or Jewelries.
It is good as Collectible, Investment and for Gift purpose.
30 Day No questions asked Return Policy; Size, Weight & Color are approximate and may slightly vary.
SKU: 231006
Brand: DeluxeGems

About 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,

Shipping
Provider Destination Cost
Standard Shipping - Tracked Default Rest of World
21 days
first item
per additional item
shipping capped at
Express Shipping Rest of World
5 days
first item
per additional item
shipping capped at
Standard Shipping - Tracked Default United States of America
5 days
first item
per additional item
shipping capped at
Express Shipping United States of America
3 days
first item
per additional item
shipping capped at
Store
GIA Certified 11.55 ct AAAA Cushion (16 x 11 mm) Natural D'Block Tanzanite

deluxegems

Tn-tennessee, United States of America
Owned by deluxegems
Recent Feedback
  • dfunk24
    dfunk24
    Positive

    Another gorgeous tanzanite from a great seller. Thank you!!

  • dfunk24
    dfunk24
    Positive

    Another gorgeous tanzanite from a great seller. Thank you!!

  • jupiteris
    jupiteris
    Positive

    Nice stone and seller was very prompt.

  • moondog88
    moondog88
    Negative

    Yeah gem was a lot different then in pictures kinda disappointing.

  • guest384810
    guest384810
    Positive

    Paid and shipped - no feedback left after 100 days

  • kymv0419
    kymv0419
    Positive

    Paid and shipped - no feedback left after 100 days

Audit

The Gemstone Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

Costs:
Transit:
21 days via Standard Shipping - Tracked
Capped at:
Ships from:
United States of America

Payment Options

  • paypal

Overview

Listing Type : Standard
Product ID : 2523407
Starts : 22nd March 2026 05:50 pm PDT
* All prices are in USD

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