1.13 Ct Natural Blue Cobalt Spinel | No Heat | Vivid Blue Pear Cut Spinel

Product Description

695

An exceptionally attractive 1.13 carat Natural Blue Cobalt Spinel, displaying a vivid blue color and accompanied by confirmation of no heat and no treatment. Fine blue spinels are among the rarest and most sought-after collector gemstones, prized for their remarkable brilliance, exceptional transparency, and naturally vibrant colors.

This gemstone features an elegant pear cut that combines the brilliance of a round gemstone with the graceful silhouette of a marquise shape. The cut enhances both sparkle and visual size while showcasing the stone's rich blue color from every angle.

What makes this spinel particularly desirable is its vivid cobalt-blue appearance. Cobalt-bearing blue spinels are highly regarded by collectors and gem enthusiasts due to their rarity and striking saturation. Unlike many blue gemstones that routinely undergo enhancement, this stone remains completely natural without any heat treatment.

Spinel has long been treasured by royalty and collectors for its durability, brilliance, and rarity. Historically mistaken for ruby and sapphire in famous crown jewels, fine spinel is now recognized as one of the world's premier collectible gemstones.

Its elegant pear shape and vivid blue color make it an excellent choice for custom engagement rings, pendants, collector jewelry, or investment-grade gemstone collections.

Gemstone Specifications

Gemstone: Natural Blue Cobalt Spinel

Species: Natural Spinel

Weight: 1.13 Carats

Color: Vivid Blue

Shape: Pear

Dimensions: 7.63 × 5.84 × 4.14 mm

Crown Cut: Brilliant

Pavilion Cut: Step

Refractive Index: 1.720

Specific Gravity: 3.65

Treatment: None (No Heat – No Treatment)

Transparency: Transparent

Certificate Number: ADP36676

Certificate Date: 03 February 2026

Certification Laboratory: GFCO Gem Lab

Why Choose This Gemstone?

✔ Natural Blue Cobalt Spinel

✔ No Heat – No Treatment

✔ Rare Collector Gemstone

✔ Vivid Blue Color

✔ Elegant Pear Cut

✔ Excellent Brilliance

✔ Highly Desirable Spinel Variety

✔ Suitable for Fine Jewelry

✔ Certified Gemstone

✔ Strong Collector Appeal