gemstone

Faceted clear gemstone, likely quartz (rock crystal)

Quartz, silicon dioxide (SiO₂); exact identity is uncertain because the strong flash and cut obscure diagnostic features

AI-generated identification · may be incorrect

Identified September 14, 2026More gemstone →

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At a glance

Common name: Faceted clear gemstone, likely quartz (rock crystal)
Scientific name: Quartz, silicon dioxide (SiO₂); exact identity is uncertain because the strong flash and cut obscure diagnostic features
Category: gemstone
Identified: September 14, 2026
Method: Standard

AI Estimated Value

Approximately $5–$50 for a common quartz-cut stone; $50–$300+ for clean, well-cut natural quartz. Identification as quartz versus synthetic material is essential before assigning higher value.

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

Colorless and transparent with brilliant faceted luster; likely vitreous, Mohs hardness 7, trigonal crystal structure, and no prominent cleavage. The round brilliant cut indicates a polished gemstone rather than a natural crystal; it could also be synthetic glass or cubic zirconia, though it is treated here as geological material per the image context.

Formation & geological history

Natural quartz forms in silica-rich hydrothermal veins and igneous cavities, commonly from Paleozoic to younger geological settings; individual age cannot be determined visually. Faceting is modern human processing.

Uses & applications

Used in jewelry, ornaments, and crystal collecting; quartz is also important in electronics, glassmaking, and abrasives. If cubic zirconia or glass, its industrial and value profile differs substantially.

Geological facts

The many triangular and kite-shaped reflections are facets, not natural crystal faces. A refractometer, loupe, and hardness or thermal-conductivity testing are needed to separate quartz from diamond simulants.

Field identification & locations

Common sources of gem quartz include Brazil, Madagascar, and the United States. Check for doubled facet edges, inclusions, facet wear, and specific gravity; quartz feels less heavy than cubic zirconia and does not show diamond’s characteristic dispersion.