gemstone

Red coral (likely precious coral)

Corallium sp.; calcium-carbonate skeleton, primarily calcite

AI-generated identification · may be incorrect

Branching, glossy red material with a smooth polished surface. Coral is about 3 on the Mohs scale and has no regular mineral crystal structure; the pictured branches appear shaped and polished.

Identified September 23, 2026More gemstone →

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At a glance

Common name: Red coral (likely precious coral)
Scientific name: Corallium sp.; calcium-carbonate skeleton, primarily calcite
Category: gemstone
Identified: September 23, 2026
Method: Standard

AI Estimated Value

About $10–$100 for small common coral pieces; larger natural, verified material can be worth substantially more. The pictured item cannot be reliably valued from the image.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Branching, glossy red material with a smooth polished surface. Coral is about 3 on the Mohs scale and has no regular mineral crystal structure; the pictured branches appear shaped and polished.

Formation & geological history

Built by colonial marine animals from calcium carbonate in deep-water habitats; the biological skeleton may be geologically recent. The image does not establish the exact species or whether this is natural coral or a molded imitation.

Uses & applications

Natural red coral is used in jewelry and decorative carving; trade is regulated for some species. This branch-like piece may be a jewelry display or decorative specimen.

Geological facts

Coral is an animal-made geological material, not a mineral crystal. Bright, uniform color and identical-looking branches can also occur in artificial imitations.

Field identification & locations

Natural coral often shows fine longitudinal grooves, pores, and irregular branching; inspect closely for molded seams or plastic-like uniformity. Red coral occurs in parts of the Mediterranean and western Pacific.