1.96 Carat Natural Color-Change Spinel – Tanzania

A fascinating 1.96 carat natural color-change spinel from Tanzania, displaying a distinctive transition from blue to purple as the lighting environment changes.

The accompanying AIG gemological report specifically identifies the stone as Natural Spinel (Color Change) and documents the blue-to-purple color behavior. Under incandescent lighting, the change becomes particularly apparent, giving this gemstone two dramatically different personalities.

Gemstone Details

• Gemstone: Natural Color-Change Spinel
• Weight: 1.96 carats
• Color: Blue to Purple
• Origin: Tanzania
• Shape: Cushion Cut
• Measurements: 8.23 × 6.57 × 4.6 mm
• Treatment: No indication of heat
• Hardness: 8.0 Mohs
• Report: AIG – American International GemLab
• Report No.: GEM20260831178598

Natural Color Change

Color-change spinel is an unusual variety of natural spinel whose appearance changes according to the spectral characteristics of the light illuminating it. Tanzanian material is among the sources represented in today’s color-change spinel market. 

This specimen transitions from a cool blue/violet appearance to a warmer purple tone, with the AIG report specifically noting that the color change can be seen under incandescent light.

Important Clarity Disclosure

This is a naturally included gemstone. High-magnification macro photography reveals several internal inclusions and characteristics within the stone.

These inclusions are not readily visible to the naked eye during normal viewing and are substantially more apparent in the enlarged macro photographs. They have intentionally been left visible in the listing photographs rather than digitally removed or concealed so buyers can examine the stone transparently.

The inclusions give the gemstone its individual natural character while allowing the blue-to-purple color-change phenomenon to remain the centerpiece.

$1,500

A distinctive opportunity for someone seeking a nearly 2-carat natural Tanzanian color-change spinel rather than a conventional blue or purple gemstone.

Suitable for a custom ring or pendant, or simply kept loose as an unusual collector specimen.

The exact gemstone pictured is the gemstone you will receive.