2.44 ct Unheated Ceylon Blue Sapphire

Collector's Note

A 2.44 ct natural Ceylon blue sapphire with no heat recorded in the current Otzera evaluation and an unusually broad face-up presentation for its weight. Its light-to-medium blue appearance and visible silk give it a distinctly natural character, making it an accessible option for a collector who values size, provenance and unheated status.

Gemstone Details

Gemstone: Natural Blue Sapphire
Species: Corundum
Weight: 2.44 ct
Shape / Cut: Oval Mixed Cut
Measurements: 10.55 × 7.22 × 3.18 mm
Origin: Sri Lanka (Ceylon)
Treatment: None recorded in the current Otzera evaluation
Clarity: Fine loupe-visible intact needle silk

O50 Collector Evaluation

Otzera 50: 24/50 — Discovery
Face-Up Performance: 43% 

Cut & Optical Note

The stone is cut unusually shallow, creating substantial central windowing. That same shallow construction gives it a notably large face-up spread for 2.44 ct. It is best suited to a collector who prioritizes unheated character and visible size over optimized light return.

Treatment & Origin Disclosure

The current Otzera record lists Sri Lanka (Ceylon) as the geographic origin and no treatment. These statements are based on the current Otzera record rather than an independent laboratory origin report.

Care & Setting

Sapphire is highly durable for jewelry wear. Because of the stone's shallow profile, setting design should provide secure support around the girdle. 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, cut observations and O50 evaluation.