1.44 ct Tanzanite

Collector's Note
A lively 1.44 ct natural tanzanite from Tanzania with a classic oval modified brilliant cut and an appealing blue-violet appearance. Its transparent body and crisp oval outline make it an easy size for jewelry while retaining the distinctive color character that makes tanzanite so recognizable.

Gemstone Details
Gemstone: Natural Tanzanite
Species: Zoisite
Weight: 1.44 ct
Shape / Cut: Oval Modified Brilliant
Measurements: 8.35 × 6.49 × 3.99 mm
Origin: Tanzania
Treatment: Heated (standard for tanzanite)

O50 Collector Evaluation
Otzera 50: 32/50 — Collectible
Face-Up Performance: 70%

Treatment
Tanzanite is gently warmed after mining to bring out its blue-violet color. This has been standard practice since the gem was found in Tanzania in 1967, and it is how all tanzanite is valued. The color is permanent and stable and needs no special care.

Care & Setting
Tanzanite is best suited to thoughtful wear. Clean with warm water, mild soap and a soft brush; avoid ultrasonic cleaning, sharp impacts and sudden temperature changes.

Digital Gem Passport
Accompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.