1.66 ct Unheated Natural Ruby

Collector's Note

Rich red color gives this 1.66 ct natural ruby immediate presence. Its elongated oval mixed cut gives the stone a distinctive character, while the current Otzera evaluation records no treatment, adding further collector interest without making the listing dependent on origin prestige.

Gemstone Details

Gemstone: Natural Ruby
Species: Corundum
Weight: 1.66 ct
Shape / Cut: Oval Mixed Cut
Measurements: 8.41 × 5.99 × 3.65 mm
Treatment: None recorded in the current Otzera evaluation

O50 Collector Evaluation

Otzera 50: 29/50 — Collectible
Face-Up Performance: 60%

Treatment & Origin Disclosure

The current Otzera record lists no treatment. No geographic origin is assigned in the current record.

Care & Setting

Ruby is highly durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.

Digital Gem Passport

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