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ID #SA1119990
FOR SALE
£1,200
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18 Carat Gold Star Sapphire & Diamond Cluster Ring.
For sale by J. McCarthy Ltd
for sale €1,404     $1,524
£1,200

J. McCarthy Ltd

Sellingantiques Verified Since Jan 2025
Browse dealers 17 items
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Id #SA1119990
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18 Carat Gold Star Sapphire & Diamond Cluster Ring.

1940 - 1960
For Sale by J. McCarthy Ltd
Description

This gorgeous cluster ring has a star sapphire to the centre with ten eight cut diamonds in the surround to finish off a really pretty setting. All housed in 18ct yellow and white gold. A perfect engagement ring. Hallmarked London 1975.

THE STAR SAPPHIRE APPROXIMATELY 1.13ct. TOTAL DIAMOND WEIGHT APPROXIMATELY 0.20ct

CURRENT RING SIZE S

Declaration

J. McCarthy Ltd has dated this Star Sapphire Cluster Ring to the 1960s.

Reference Numbers
Sellingantiques Reference
SA1119990
Description
This gorgeous cluster ring has a star sapphire to the centre with ten eight cut diamonds in the surround to finish off a really pretty setting. All housed in 18ct yellow and white gold. A perfect engagement ring. Hallmarked London 1975.

THE STAR SAPPHIRE APPROXIMATELY 1.13ct. TOTAL DIAMOND WEIGHT APPROXIMATELY 0.20ct

CURRENT RING SIZE S

Date of Manufacture

J. McCarthy Ltd has dated this Star Sapphire Cluster Ring to the 1960s.

Reference Numbers
Sellingantiques Ref
SA1119990
J. McCarthy Ltd
Sellingantiques verified Since Jan 2025
Dealer Profile

You can view the stock and full dealer information on the J. McCarthy Ltd Profile Page

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An 18ct yellow gold cluster ring featuring an oval blue cabochon star sapphire central gemstone surrounded by a halo of small diamonds.
1 / 3
Archive I An 18ct yellow gold cluster ring featuring an oval blue cabochon star sapphire central gemstone surrounded by a halo of small diamonds.

18 Carat Gold Star Sapphire & Diamond Cluster Ring.

Archive II An 18ct yellow gold cluster ring featuring an oval blue cabochon star sapphire central gemstone surrounded by a halo of small diamonds. View II
Archive III An 18ct yellow gold cluster ring featuring an oval blue cabochon star sapphire central gemstone surrounded by a halo of small diamonds. View III
Enlarged Archival View

J. McCarthy Ltd
Telephone 07833 785857
Location
49 Maddox Street
Mayfair
London
W1S 2PQ
United Kingdom

Opening times
Monday - Friday 10:00am - 4:00pm
Dealer Profile Page sellingantiques.co.uk/jmccarthy
Verified Since Jan 2025
Items For Sale 17
Items Sold 24
J. McCarthy Ltd
Verified Since Jan 2025
View Dealer Info
Location: 49 Maddox Street, Mayfair, London, W1S 2PQ, United Kingdom, , Opening times, Monday - Friday 10:00am - 4:00pm
Profile: sellingantiques.co.uk/jmccarthy
Verified
Jan 2025
For Sale
17
Sold
24
An 18ct yellow gold cluster ring featuring an oval blue cabochon star sapphire central gemstone surrounded by a halo of small diamonds.
18 Carat Gold Star Sapphire & Diamond Cluster Ring.
Ref: SA1119990
An 18ct yellow gold cluster ring featuring an oval blue cabochon star sapphire central gemstone surrounded by a halo of small diamonds.
Detail View 1
Detail View 2
Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1940 - 1960
  • StyleMid-Century
  • Material18ct Gold, Star Sapphire, Diamond
  • ColourGold, Blue
  • MotifsCabochon gemstone, Diamond halo, Cluster setting, Tapered band

This mid-century cluster ring follows a traditional design with an oval cabochon blue star sapphire to the centre, secured by four claws in an 18 carat white gold mount. The central gemstone is surrounded by a halo of ten small eight-cut diamonds in individual settings, creating a patterned cluster motif. The mount joins a polished yellow gold band that tapers smoothly towards the back. Visible details include the contrasting white and yellow metals of the head and shoulders, the distinctive asterism visible across the surface of the blue sapphire, and the faceted sparkle of the surrounding diamonds. The piece is suited for everyday wear as an engagement ring or statement piece on the hand. The ring is hallmarked London 1975 and comes in size S, making it ready for wear today.

FAQs

A star sapphire cluster ring features a central cabochon-cut sapphire exhibiting asterism, surrounded by a decorative border or halo of accent stones such as diamonds set into precious metal.

These rings typically utilise 18ct yellow or white gold, platinum settings to securely grip the accent diamonds, and natural star sapphires cut in a smooth dome shape to display the six-rayed star phenomenon.

Authentic natural star sapphires exhibit a six-ray star effect that moves smoothly across the cabochon surface when observed under a direct light source, often accompanied by minor natural inclusions within the stone.

A gemstone cluster ring functions as a standalone statement piece on the index or ring finger, complementing tailored evening wear or adding a subtle focal point to minimalist daywear ensembles.

Clean the setting using warm water, mild liquid soap, and a soft-bristled brush to clear dust behind the mount, then dry thoroughly with a soft lint-free cloth and store in a fabric-lined jewellery box away from harder gems.
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