gemstone

Faceted golden beryl (likely heliodor)

Beryl, Be₃Al₂Si₆O₁₈; yellow color from iron impurities

AI-generated identification · may be incorrect

Transparent yellow-gold, glassy luster, emerald-style step faceting, likely Mohs hardness 7.5–8, hexagonal crystal structure, poor basal cleavage, specific gravity about 2.63–2.80. The image cannot confirm whether it is natural, treated, or synthetic.

Identified September 8, 2026More gemstone →

Explore Faceted golden beryl (likely heliodor) in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

At a glance

Common name: Faceted golden beryl (likely heliodor)
Scientific name: Beryl, Be₃Al₂Si₆O₁₈; yellow color from iron impurities
Category: gemstone
Identified: September 8, 2026
Method: Standard

AI Estimated Value

About $10–$80 for a small commercial cut stone; roughly $100–$500+ for well-cut, clean natural heliodor. Synthetic or imitation material may be worth only a few dollars.

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

Forms in lithium- and beryllium-rich granitic pegmatites and hydrothermal cavities, generally in Precambrian crust. Brazil is a major beryl producer, and the reported Minas Gerais region is geologically plausible.

Uses & applications

Used as a collectible and jewelry gemstone; durable enough for rings but less common than topaz or citrine. Golden beryl is generally valued below fine emerald and aquamarine.

Geological facts

Heliodor specifically refers to vivid yellow to yellow-green beryl; pale golden material may simply be called golden beryl. Similar-looking alternatives include irradiated topaz, citrine, yellow sapphire, and synthetic glass.

Field identification & locations

Check for natural inclusions, strong glassy luster, and a refractive index around 1.57–1.58; a gemologist should confirm identity by refractometer and microscope. Avoid scratch tests on the cut stone.