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Silver, rubies, sapphires, laboratory rubies

H  3.50cm (1.38 in)  |  W  6.00cm (2.36 in)

Origin	United Kingdom, c. 1920
Case	Fitted Case
Condition	Very good
Weight	20.60 troy ounces

Arts & Crafts Double Circle Brooch with fabulous colouring of natural rubies & sapphires.
The two cabochon genuine laboratory rubies have the same chemical composition, crystal structure, optical & physical properties as mined rubies & have the same Mohs hardness of 9. They were first made in Switzerland in 1880 & would have cost the same as natural rubies. They were chosen for their purity & colour.

Literature
Illustrated in our book:
Beatriz Chadour-Sampson & Sonya Newell-Smith, Tadema Gallery London Jewellery from the 1860s to 1960s, Arnoldsche Art Publishers, Stuttgart 2021, cat. no. 572
Nancy. N. Schiffer, Silver Jewelry Designs, 1996, illustrated p. 105

Ref No   1390

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