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Art Deco, American, Rare Teal Sapphire and Diamond Cluster Ring


£5,750
Product SKU: ARB-441

Sapphires have been treasured for millennia, and deposits in Sri Lanka, Burma (Myanmar) and Kashmir are usually thought of as the most famous deposits. However, another deposit, in Yogo Gulch in Montana, USA, caused a considerable stir at the end of the 19th century, yielding superb and distinctive sapphires of its own. The deposits had been discovered as early as the 1860s, as a byproduct of the ‘gold rush’ that swept the region, but yields were small and went virtually unnoticed as the prospectors focussed their attentions solely on gold. In 1895, the prospector Ed ‘Sapphire’ Collins started to wonder if these small blue stones might actually be worth something. He sent a parcel to Tiffany’s famous pioneering gemologist, George Frederick Kunz, who promptly purchased the lot, declaring that they were ‘sapphires of unusual quality’. With this endorsement, a new sapphire rush began, and Montana sapphires suddenly shot to fame. Montana sapphires are set apart from other sapphires primarily by their range of attractive colours, the most famous of which is demonstrated here: an unusual, striking greenish-blue, not found in other sapphires. 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 with Kunz’s endorsement they captured the imagination of Tiffany & Co., who championed them in their all-American jewels of the early 20th century. Montana sapphires also tend to be very small, and are most commonly below 1 carat, which means that this 2.40 carat blue-green gem is something of a rarity. Set in a simple cluster of circular-cut diamonds to a yellow gold band, this is a sapphire and diamond cluster with a story to tell.




This sapphire is electric! I’ve never seen a colour like this in a sapphire; it’s a mixture of vibrant teal and sage hues - totally mesmerising.




Place Of Origin

America

Stone Type

Sapphire: 2.4 carats (calculated)

Accompanied by GCS report no. 81294-50, stating that the sapphire is of Montana (U.S.A) origin, with no indications of heat treatment.

Diamonds: Approx. 0.70 carats total / Approx. G/H colour / VS clarity on average

Stone Dimensions

Sapphire: 7.0mm x 7.3mm x 5.6mm

Height of setting: 6mm
Width of setting at front: 12mm x 12mm

Metal Type

18 carat gold

Marks

‘18K’

Date Of Manufacture

1915- 1925

Period Of Manufacture

Early 20th Century

Condition

Very good

Signs Of Wear

Minor wear commensurate with age

Band Size

UK L / US 5.75 (complimentary re-size available)

Weight

3.98 grams (gross)