A rare Montana sapphire and diamond cluster ring, circa 1910. In the second half of the 19th century, parts of America were overtaken by a ‘Gold Rush’, as veins of gold were discovered and people rushed to remote locations in a fervent effort to make their fortunes. One of these destinations was Yogo Gulch in Montana. However, to the surprise of the prospectors, the land instead yielded a superb deposit of sapphires. When Tiffany’s head gemmologist Georg Frederick Kunz started to take notice, Montana sapphires suddenly shot to fame. Sapphires from Montana are set apart from others primarily by their range of attractive colours, the most famous of which is demonstrated here: an unusual, slightly greenish blue. They also tend to be of more even colour than other sapphires, which are prone to patchy colour ‘zoning’ within the stone. These qualities combined to create gems of surpassing charm and enduring appeal, particularly rare in sizes over one carat. With a beautiful cushion-shaped Montana sapphire at its heart and a double border of millegrain-set circular-cut diamonds surrounding it, this is a Belle Epoque sapphire and diamond cluster with a difference.
Place of Origin:
Sapphire approx. 1.40cts
Accompanied by GCS certificate report stating that the sapphire is of Montana origin, with no indications of heat treatment.
Diamond approx. 0.50ct total
Height 6mm / Front Head 14mm x 13.2mm / width 19mm including diamond shoulders
18ct Yellow Gold, Platinum
Manufacture Date & Period:
1900 -1910 / Edwardian
Condition & Wear:
Good / Wear commensurate with age
UK P ½ / US 8 (complimentary re-size available)
This ring can easily be re-sized