Not a diamond; appears to be a natural or coated quartz, moonstone, or similar tumbled gem material / simulant based on the milky sheen and irregular cabochon shape.
Not a diamond; appears to be a natural or coated quartz, moonstone, or similar tumbled gem material / simulant based on the milky sheen and irregular cabochon shape. · Irregular Cabochon / Freeform
Not Applicable (Cabochon/Tumbled stone, not faceted) Cut
Carat
Estimated 3.0 to 5.0 carats based on visual size relative to fingertips.
Color
Milky White with iridescent or pearlescent surface play
Clarity
Included (I1/I2 equivalent)
Shape
Irregular Cabochon / Freeform
Overall Assessment
The specimen shown is an irregularly shaped, tumbled or cabochon-cut white gem material—likely quartz, feldspar, or a coated simulant—rather than a genuine diamond. It lacks the crystal structure, high refractive index, and facet-based optical performance characteristic of diamonds.
Cut Quality
Not Applicable (Cabochon/Tumbled stone, not faceted)
Brilliance
Low to Moderate; displays a soft adularescence or milky sheen rather than sharp facet brilliance
Fire
Minimal to none due to lack of facets
Scintillation
Low; reflects broad areas of light rather than pinfire sparkle
Proportions
Non-standard proportions due to freeform cabochon cut
Symmetry
Poor / Asymmetrical due to natural or tumbled freeform shape
Polish
Good, smooth tumbled surface polish with some surface irregularities
Fluorescence
Cannot be definitively determined without UV testing, likely inert to faint
Inclusions
Heavy internal fracturing, cloudy veils, and natural inclusions typical of quartz or feldspar minerals
Blemishes
Minor surface pits, natural fissures, and abrasions visible on the exterior
Origin
Natural mineral, exact geographic origin undetermined without advanced spectroscopic testing.
Treatment Detection
Possible surface coating (indicated by the iridescent sheen resembling mystic or coated quartz), though further microscopic testing is required.
Estimated Value
Nominal value (under $50 USD) depending on the exact mineral species (e.g., common quartz or moonstone).
Certification Estimate
Major labs (GIA, AGS, IGI) do not typically issue standard diamond grading reports for non-diamond gem materials; would receive a Gemstone Identification Report if submitted.
Investment Potential
Low; intended for ornamental, metaphysical, or lapidary purposes rather than as an investment asset.
Similar Diamonds
None; this specimen shares no optical or physical characteristics with standard faceted diamonds.
Setting Suggestions
Wire-wrapped setting, bezel setting, or heavy prong setting in sterling silver or yellow gold to accommodate its irregular shape.
Care & Maintenance
Clean gently with warm soapy water and a soft cloth; avoid harsh chemicals, ultrasonic cleaners, and sudden temperature changes.
Interesting Facts
Stones with this specific milky, iridescent sheen are often marketed under trade names like 'opalized quartz', 'mystic quartz', or confused with low-grade moonstone.