emerald · 7.80 ct · Colombia, Muzo (Old Mine) · certified by AGL — fractional on-chain ownership on CaratShares.
Old-mine Colombian emerald of 7.80 carats from the Muzo deposit — the historic source whose stones have set the global standard for fine emerald since the 16th century. "Old mine" in lab parlance refers to material whose mineralogical signature matches pre-modern production, distinguishing it from contemporary Muzo output. The colour is a saturated grass green with the warm yellow undertone characteristic of the very best Muzo material. Minor traditional cedar oil treatment, fully disclosed; this is the universal standard for emerald and is invisible at normal magnification. The classic emerald cut emphasises the depth of colour and clean field. AGL report 1106823 documents Colombian origin and the standard oil treatment. Old-mine Muzo emerald of this size and clarity is increasingly rare, with most modern auction-grade material classified as "modern Muzo" or other Colombian sources.
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