gemstone

Diamond jewelry pendant or cluster

Diamond, crystalline carbon (C), likely mounted in metal

AI-generated identification · may be incorrect

Colorless, adamantine luster, cubic crystal structure, Mohs hardness 10, and excellent brilliance; the surrounding gray material appears to be a metal setting or possibly small accent stones. Identification from the image alone is uncertain.

Identified August 30, 2026More gemstone →

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At a glance

Common name: Diamond jewelry pendant or cluster
Scientific name: Diamond, crystalline carbon (C), likely mounted in metal
Category: gemstone
Identified: August 30, 2026
Method: Standard

AI Estimated Value

Approximately $20-$200 if costume jewelry or imitation stones; $200-$5,000+ for genuine small diamonds, with substantially higher values for larger, high-quality documented stones.

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

Formation & geological history

Natural diamonds formed deep in Earth’s mantle under extreme pressure and temperature, commonly over 1 billion years ago, then reached the surface in kimberlite or lamproite. Synthetic diamonds can be laboratory-grown by HPHT or CVD methods.

Uses & applications

Used primarily in jewelry and industrial cutting, drilling, and polishing. Value depends strongly on whether the stones are natural or lab-grown, plus carat weight, cut, color, clarity, and metal type.

Geological facts

Diamond is the hardest natural mineral but can still chip along cleavage planes. A reliable identification requires testing such as thermal conductivity, microscopy, spectroscopy, or a gemological report.

Field identification & locations

Common natural sources include Botswana, Canada, Russia, Australia, and southern Africa; major laboratory production occurs worldwide. Look for sharp facet junctions, strong dispersion, and a professional hallmark or grading report; visual inspection cannot confirm diamond.