A DELICATE BELLE EPOQUE SINGLE-STONE EMERALD RING Set with a modified cushion-shaped emerald to the pierced old mine-cut diamond shoulders and plain hoop, circa 1915 With certificate 32153 dated 11/6/1998 from the SSEF Swiss Gemmological Institute stating that the emerald is of Colombian origin; accompanied by a treatment slip confirming the presence of a filler, substance excluded is artificial resin. Due to the setting, a spectroscopic analysis of the filler could not be performed. Microscopic observation indicates the unknown substance to be decomposed oil
A DELICATE BELLE EPOQUE SINGLE-STONE EMERALD RING Set with a modified cushion-shaped emerald to the pierced old mine-cut diamond shoulders and plain hoop, circa 1915 With certificate 32153 dated 11/6/1998 from the SSEF Swiss Gemmological Institute stating that the emerald is of Colombian origin; accompanied by a treatment slip confirming the presence of a filler, substance excluded is artificial resin. Due to the setting, a spectroscopic analysis of the filler could not be performed. Microscopic observation indicates the unknown substance to be decomposed oil
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
