raised in a diamond line frame, all bordered by fan-cut emeralds forming half moons and outer scalloped edged diamond line edge, millegrain and collet set, between diamond line shoulders, the gallery pierced with a heart scroll band, the shank stamped 15, tested as 18ct gold and platinum to head and 15ct gold to shank, in our opinion the central emerald is of Colombian origin with minor traditional oil clarity treatmentCluster 14.5 x 14.5mm
Emerald approximately 5.4 x 5.4 x 3.5Weight: 2.5g
Early 20th century diamond and sapphire 'eye' cluster ring, French c.1910, with an old European cut diamond brilliant to centre, approximately 0.90ct, flanked by tapering calibre cut sapphires in a millegrain scalloped edged border of small old single cut diamonds, mounted in platinum, trace of French assaymark and workshop mark
Art Deco diamond and sapphire oblong cluster ring, c.1920, set with an old lozenge cut diamond to a calibre cut sapphire ground and outer diamond border of old brilliant cut stones, diamond line shoulders extending up to the principal diamond, millegrain set, engraved anthemoin and laurel to half shank, lozenge pierced to gallery, serial number within the shank 3632
Late 19th century five stone ruby ring, c.1890, the graduated cushion cut Burma rubies, approximately 4.10cts, with eight rose cut diamond points in between, to a pierced and scroll engraved gallery, fluted shoulders, mounted in 18ct gold, stamped '18CT', accompanied by GCS report no. 5776-4880 giving a Burma origin opinion for the rubies and that they show no evidence of heat treatment