Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect (27 March 2018)

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Date of Auction: 27th March 2018

Unsold

Estimate: £500 - £700

A cabochon sapphire and diamond set pendant, the oval cabochon sapphire drop millegrained collet set within a semi articulated hoop surround accented with pinched collet set rose-cut diamonds, mounted in gold and silver, with engraved decoration to the reverse of the setting, suspended on a later silver chain, pendant length 75mm. £500-700

Condition Report

The sapphire is a soft blue, with numerous inclusions, many crystal / mineral inclusions, fluid inclusions, partially healed halos, elongated negative crystals etc. The stone is untested for origin or treatments. Approximate dimensions of sapphire 15mm x 12mm x 5mm (the stone is relatively flat backed). The setting appears to be silver, and is very tarnished throughout. The rose-cut diamonds are generally rather roughly cut and grey in colour. Gross weight of pendant (excluding chain) approximately 12.6gm.