Loose Natural Emerald Gemstones

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Understanding Carat Weight

See The Size On Your Hand

Approximate gemstone size on a U.S. size 6 finger

0.07 ct 33.10 ct

Carat (ct.) is the standard unit used to weigh natural gemstones, including the certified sapphires, rubies, emeralds, and other loose gemstones in our collection, and one gram equals 5 carats. Every gemstone listed on Jamsora shows its exact carat weight alongside its independent lab certificate, so you always know precisely what you're buying.

Matched pairs: when a listing is sold as two stones together, the carat weight shown is their combined total, not the weight of each individual stone.

Carat weight alone doesn't fully describe how large a gemstone will look once set, since two stones of equal weight can appear different sizes depending on their cut and proportions. For a more reliable sense of a stone's visual size, check its millimeter dimensions (length × width × depth), listed on every product page alongside its carat weight and certificate details.

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Gemstone Guide

About Emerald Gemstone

Emerald is the green variety of beryl, prized for a saturated color caused by trace chromium and vanadium that no other gemstone quite replicates. Softer than ruby and sapphire at 7.5 to 8 on the Mohs scale, emerald typically forms with natural inclusions — often called its "jardin," or garden — which are considered part of the stone's character rather than a flaw, and most emeralds are clarity-enhanced with oil, a centuries-old and fully disclosed trade practice. Colombia remains the benchmark origin for fine emerald, especially the historic Muzo and Chivor mines, with Zambia and Brazil also producing beautiful natural stones. Because treatment and origin affect both value and care, every emerald in Jamsora's collection is independently certified, confirming whether it's untreated or oil-treated before it ships — essential information for anyone buying a natural emerald online.

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