A Rare Montana sapphire and diamond ring/pendant

A Rare Montana sapphire and diamond ring/pendant

America, circa 1900
Later pendant fitting
Unmarked
Accompanied by AGL report no. 1105557

Ring size J (UK), 4 3/4 (US), 48.7 (EU)
Setting diameter: 2 3mm

 

Accompanied by AGL report no. 1105557, stating that the sapphires are from Montana, with no indication of heat treatment, based on a random sample of over half of the sapphires.

Of cluster design, set with concentric rings of circular-cut diamonds and rare Montana sapphires, accented with smaller cushion-shaped diamonds, mounted in silver and gold, to a pierced gallery and fleur de lis shoulders, the setting detaching from the ring via a screw mechanism to form a pendant, with a later hinged bail fitting pavé-set with brilliant-cut diamonds.
 

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