About this lot

Description

A colour change blue paste ring, the large round facetted stone, 14mm diameter, four claw set between baguette cut white stone shoulders to a raised gallery and plain shank, size P; in artificial light the stone is a clear aquamarine green-blue, which changes in daylight to a light lavender blue; it has strong fluorescence under UV light (purple in SW, orange in LW) and a pronounced spectrum indicating the presence of various rare earths, cased

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