3.53 ct Blue Spinel — Oval Mixed Cut
Collector’s Note
Cool steel-blue color and an elongated oval shape give this natural spinel a distinctive elegance. Broad facets catch silvery reflections and flashes of blue as the viewing angle changes. At 3.53 ct and 12.5 mm long, it has a generous presence that would suit a statement pendant, a bespoke ring or a collection exploring the many shades of blue.
Gemstone Details
- Gemstone: Natural blue spinel
- Species: Spinel
- Weight: 3.53 ct
- Shape / Cut: Oval Mixed Cut
- Measurements: 12.5 x 7.7 x 4.4 mm
- Treatment: None
- Otzera ID: OTZ-2026-01765
Otzera 50
28/50 — Collectible
Face-Up Performance Index: 55%
Treatment
Spinel is rarely treated, and much of its appeal to collectors is that its color is natural.
Care
Clean gently with lukewarm water, mild soap and a soft brush. Protect from hard knocks and sudden temperature changes.
Photographs show this individual gemstone. Color may vary with lighting and screen settings.
Digital Gem Passport
View this gemstone’s Digital Gem Passport for its permanent record and Otzera 50 evaluation.