27 - A FINE 19TH CENTURY EMERALD AND DIAMOND CLUSTER RING The octagonal-shaped emerald, within a surround of old brilliant-cut diamonds, to a gallery and shoulders with engraved scroll and foliate decorations, mounted in 18K gold and platinum, diamonds approximately 2.80cts total, ring size Q½

A FINE 19TH CENTURY EMERALD AND DIAMOND CLUSTER RING The octagonal-shaped emerald, within a surround of old brilliant-cut diamonds, to a gallery and shoulders with engraved scroll and foliate decorations, mounted in 18K gold and platinum, diamonds approximately 2.80cts total, ring size Q½ Accompanied by a report from GCS laboratory in London stating the emerald weighing approximately 5.30cts, is of Colombian origin, with minor oil. Report no. 5786-3990, dated October 1st 2026. Condition Report: Emerald: of deep bluish-green hue, medium tone, good transparency **Accompanied by a report from GCS laboratory in London stating the emerald weighing approximately 5.30cts, is of Colombian origin, with minor oil. Report no. 5786-3990, dated October 1st 2026. Diamonds: approx. 2.80cts total, bright and lively - estimated colour I/J, estimated clarity VS-SI By family repute, the emerald and diamond cluster used to be a brooch, the top was changed to fit the ring shank - very slightly loose (do not hesitate to request additional images for better understanding). Normal signs of wear commensurate with age, overall in good condition White and yellow metal unmarked, tested by the jewellery department to be approx. 18K gold and some platinum Total gross weight approx. 10g Adam’s Auctioneers does not guarantee the standard of gold or platinum unless an item bears an official hallmark. In certain instances, metal content may be tested using a Thermo Scientific Nitron Handheld XRF Analyser. This device examines metal to a depth of approximately 8 microns only, and any results obtained through electronic testing must be regarded as indicative rather than definitive, as inaccuracies may occur. Where catalogue descriptions or condition reports refer to marks denoting metal fineness, or include an opinion as to metal content, such information is provided for guidance only. All statements contained within the catalogue represent expressions of opinion. Prospective purchasers must satisfy themselves as to all such matters prior to bidding.