Georgian Emerald & Old Cut Diamond Halley's Comet Charm engagement ring with a folding down lid

with a folding down lid flap and a little clasp to hold them secure

I wonder what they used it for

STONES Natural Rubies and Old Cut DiamondsMEASUREMENTS Head: 18

I have no idea what the origin plant was

DESCRIPTION

Georgian Emerald & Old Cut Diamond Halley's Comet Charm engagement ring with a folding down lidDATE: Georgian, c. 1830 A gorgeous example of the Georgian Halley's Comet, modelled as a charm and set with old mine cut diamonds and a principal emerald. The cluster of diamonds rest in silver crimped settings, very typical of jewellery from this era, while the main event rests in gold, a gorgeous contrast to the vivid green quality emerald. The body of the charm in 15k yellow gold features pretty hand chased detail, and is set with a single old mine