A late Victorian ruby and diamond closed crescent brooch

A late Victorian ruby and diamond closed crescent brooch,
with an outer row of graduated circular mixed cut rubies, all in cut down collets, claw set to a scalloped bezel. An interior row of graduated rose cut and old Swiss cut diamonds, grain set in silver and backed in gold, with a detachable brooch fitting. Tested as approximately 18ct gold, 9ct gold and silver. 37.5mm diameter, 9.82g. A case, damaged, by 'Le Roy et Fils, to The Queen, 57 New Bond Street, London'
Sold for £1,600

Condition report:
Tarnished.