11.26 ct Natural Nigerian Aquamarine

Collector's Note
An impressive 11.26 ct natural aquamarine from Nigeria with crisp oval modified brilliant cutting, strong brightness and an open, lively face-up presentation. Its attractive blue color, substantial size and well-balanced cut give the stone excellent presence while retaining a clean, elegant look.

Gemstone Details
Gemstone: Natural Aquamarine
Species: Beryl
Weight: 11.26 ct
Shape / Cut: Oval Modified Brilliant
Measurements: 17.30 × 12.17 × 9.60 mm
Origin: Nigeria
Treatment: Heated (standard for aquamarine)
Clarity: Loupe-visible needles and liquid inclusions

O50 Collector Evaluation
Otzera 50: 40/50 — Distinguished
Face-Up Performance: 90%

Treatment
Most aquamarine is gently heated to clear a faint green or yellow tint and leave a purer blue. The change is permanent and needs no special care.

Care & Setting
Aquamarine is generally suitable for 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 and O50 evaluation.