Rock Identifier
Blue-stone ring, likely set with blue glass or a dark-blue gemstone (The stone cannot be identified reliably from the image; possible sapphire (corundum, Al₂O₃), lapis lazuli, or glass) — gemstone
gemstone

Blue-stone ring, likely set with blue glass or a dark-blue gemstone

The stone cannot be identified reliably from the image; possible sapphire (corundum, Al₂O₃), lapis lazuli, or glass

AI-generated identification · may be incorrect

A faceted, very dark-blue cabochon or stone is mounted in a silver-colored metal setting. Hardness, luster, and crystal structure cannot be determined from the photograph.

Identified More gemstone →
Explore Blue-stone ring, likely set with blue glass or a dark-blue gemstone in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

A faceted, very dark-blue cabochon or stone is mounted in a silver-colored metal setting. Hardness, luster, and crystal structure cannot be determined from the photograph.

Formation & geological history

If natural, sapphire forms in metamorphic rocks or igneous deposits; lapis lazuli forms through metamorphism of limestone. The ring’s age and stone origin are unknown.

Uses & applications

Jewelry and personal adornment; the metal setting appears decorative.

Geological facts

Dark lighting and the setting obscure diagnostic features, so visual identification alone is unreliable.

Field identification & locations

A gemologist can distinguish natural stone from glass using magnification and tests such as refractive index; do not scratch the mounted stone. Blue stones occur in many regions, depending on species.