6.25 Ct Natural Unheated Blue Spinel | GIA Certified Blue Spinel | Cushion Cut Collector Gemstone

Product Description

An exceptional 6.25 carat Natural Blue Spinel, accompanied by a GIA Gemological Report confirming No Indications of Heating, a highly desirable characteristic for collectors and connoisseurs of fine gemstones.

Displaying a captivating blue color, this remarkable spinel showcases the brilliance, rarity, and elegance that have made fine blue spinels among the most sought-after collector gemstones in the world. Historically prized by royalty and often mistaken for ruby or sapphire in famous crown jewels, spinel has earned its own reputation as one of the finest untreated gemstones available today.

Expertly fashioned into a cushion shape with a brilliant-cut crown and step-cut pavilion, this gemstone offers outstanding brilliance, attractive color distribution, and impressive visual presence. Its transparent clarity allows light to move freely through the stone, enhancing its vivid color and natural beauty.

At 6.25 carats, this gemstone falls into a highly collectible size category, as fine blue spinels above 5 carats are considerably rarer than smaller commercial examples. Combined with its untreated status and prestigious GIA certification, this gemstone represents an outstanding acquisition for collectors, investors, and bespoke jewelry enthusiasts.

Gemstone Specifications

Gemstone: Natural Blue Spinel

Species: Natural Spinel

Weight: 6.25 Carats

Shape: Cushion

Measurements: 11.53 × 11.27 × 5.90 mm

Color: Blue

Transparency: Transparent

Cutting Style (Crown): Brilliant Cut

Cutting Style (Pavilion): Step Cut

Treatment: No Indications of Heating

Certification: GIA Gemological Report

GIA Report Number: 2544466807

Date: January 23, 2026

Why This Spinel Is Special

✔ Natural Blue Spinel

✔ GIA Certified

✔ No Indications of Heating

✔ Rare Blue Color

✔ Exceptional 6.25 Carat Weight

✔ Transparent Crystal

✔ Cushion Cut

✔ Collector-Grade Gemstone

✔ Increasingly Rare in Large Sizes

✔ Suitable for High Jewelry & Investment