Garnet ((free)) Jun 2026
| C | What to Look For | |---|---| | | Red garnets: Look for pure red without brown or black zones. For other colors: saturation is key. Tsavorite should be electric green; Spessartite should be vivid orange. | | Clarity | Most garnets (except Demantoid) are eye-clean. Avoid stones with large, dark inclusions. Demantoid’s horsetails are an exception—they are desirable. | | Cut | Garnet is relatively hard (6.5–7.5 Mohs) but can be brittle. Well-cut garnets exhibit strong brilliance. Avoid stones with a "fish-eye" or a dark, dead center. | | Carat Weight | Red Almandine is affordable even in large sizes (10+ carats). However, Tsavorite, Demantoid, and fine Spessartite become exponentially more expensive over 1 carat. |
This rare variety (usually a mix of Pyrope, Spessartine, and Grossular) appears blue-green in daylight or fluorescent light, but turns purple or reddish-purple under incandescent light. It is one of the few gems that exhibits a true "alexandrite effect." garnet
Beyond jewelry, garnet is a "timekeeper" for geologists. Its high durability and resistance to heat (stable up to 2,000°C) allow it to record the history of the Earth's mantle and crust. Scientists use isotopes within garnet to date rock formations and understand the high-pressure conditions of subduction zones and the lunar mantle. Industrial and Historical Uses | C | What to Look For |
is an open-source, next-generation remote cache-store designed for high performance. | | Clarity | Most garnets (except Demantoid) are eye-clean