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art deco 643 carat colombian cabochon emerald diamond cornet cluster ring circa 1920


Art Deco 6.43 Carat Colombian Cabochon Emerald & Diamond Cornet Cluster Ring, Circa 1920


£8,650 | $10,642 USD | €9,787 EUR
Item Number: SA534388
Date of manufacture: 1920
Current Status: For sale
Seller: Gatsby Jewellery Ltd
Purchase Item # SA534388 Now direct from Gatsby Jewellery Ltd
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A breathtaking Colombian cabochon emerald takes centre stage in this impressive coronet cluster. The centre stone is a glowing blue-ish green and is rubover set within a surround of fourteen bright and a lively old mine cut diamonds. The finely pierced gallery leads to a tapering D-shaped shank. With Portuguese hallmarks indicating 14k gold.
Accompanied by an Emerald Report from Gemmological Certification Services (GCS) stating the emerald is Colombian and has only received moderate clarity enhancement.
Cut Cabochon emerald and old mine cut diamonds.
Colour Diamonds are G to I.
Clarity Some visible inclusions in the emerald (as is normal and expected for this stone). The diamonds are SI1 to I1; all are clean to the naked eye.
Carat The emerald is a known 6.43 carat. The total estimated diamond weight 1.68 carat
Circa 1920.
Condition There is a small amount of damage to the side of the emerald (this can be seen in the fourth photo). This is partially covered by the rubover setting and in no way effects the stability of the emerald.
Measurements The emerald is 13.93 x 8.58mm. The head of the ring is 15.7 x 19.9mm and sits 10.9mm
Size N 1/2 (UK) or 6.75 (US). Complimentary sizing is available, can go up or down.
Metal 14k gold. Portuguese hallmarks.
Video To view a video of this ring recorded in daylight, please copy / paste the following link into your browser:
Internal Ref: 36AB948

This antique has been viewed 43 times in the past month with the most views from Finland.


This item is antique. The date of manufacture has been declared as 1920.

Seller Details

Gatsby Jewellery Ltd
Gatsby Jewellery Ltd
3 Coppice Row
Theydon Bois
CM16 7ES
United Kingdom

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