Art Deco, French, 1930's, 18ct Gold, Diamond and Calibre Sapphire Engagement Ring

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Product SKU: ARB-93
Diamond and sapphire ring, circa 1930. Of oval form, the centre claw-set with a brilliant-cut diamond weighing 0.35 carats, within a surround of radiating calibré-cut untreated natural sapphires, to an outer border of brilliant-cut diamonds. The sapphires in this ring have been specially cut to tessellate together to form a radiating oval shape. Cutting natural untreated sapphires in this way is an extremely time consuming and expensive technique, especially as it would waste significant amounts of high-quality material. Setting them seamlessly as in the present ring, with no claws or collets visible between the stone, was a technique pioneered by some of the elite French jewellery houses of the early 20th century, particularly Van Cleef & Arpels, and would have required the skills of a master craftsman.


Place Of Origin France
Stone Type
Sapphires: Approx. 1.10 carats total (calculated)
Accompanied by GCS report no. 79232-23; stating that the sapphires are natural, with no indications of heat treatment
Central diamond: 0.35 carat (calculated)
Other diamonds: Approx. 0.50 carats total
Stone Dimensions
Height of setting: 8.5mm
Dimensions of setting at front: 21mm x 14mm
Metal Type 18 carat yellow and white gold
Marks French assay mark (eagle’s head)
Partial French maker’s mark with Fleur de Lis and initial 'G'
Date Of Manufacture 1930 - 1940
Period Of Manufacture Art Deco
Condition Very good
Signs Of Wear Very minor wear to mount commensurate with age
Band Size
UK O 1/2 / US 7.5 (complimentary re-size available)
5.42 grams (gross)