2.77 ct Unheated Australian Parti Sapphire — Radiant Cut
2.77 ct Unheated Australian Parti Sapphire — Radiant Cut
Collector's Note
A highly distinctive Australian parti-colored sapphire with deep rich blue, a concentrated yellow zone and flashes of green. The nearly square radiant cut is remarkably well made, giving the stone strong structure, crisp symmetry and lively optical performance while preserving its natural multi-color zoning.
Gemstone Details
Gemstone: Natural Parti-Colored Sapphire
Species: Corundum
Weight: 2.77 ct
Shape / Cut: Radiant Cut
Measurements: 8.05 × 7.99 × 5.26 mm
Color: Deep Blue, Yellow and Green Parti-Color
Origin: Australia
Treatment: No Heat
O50 Collector Evaluation
Otzera 50: 40 — Distinguished
Face-Up Performance: 83%
The stone received particularly strong marks for cut and optical performance, reflecting its successful radiant-style faceting and balanced presentation.
Treatment & Origin Disclosure
The current Otzera evaluation records Australian origin and no heat treatment.
Care & Setting
Sapphire is highly durable and suitable for jewelry wear. Clean with warm water, mild soap and a soft brush.
Digital Gem Passport
Accompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and treatment disclosures, and O50 evaluation.
