3.53 ct natural blue spinel, oval mixed cut, view 1 — Otzera OTZ-2026-01765

3.53 ct Blue Spinel — Oval Mixed Cut

$1,395.00
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3.53 ct natural blue spinel, oval mixed cut, view 1 — Otzera OTZ-2026-01765

3.53 ct Blue Spinel — Oval Mixed Cut

$1,395.00
CollectibleOtzera 50 · 28 of 50 · judged relative to the species How we read a stone

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.

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