6/25/2024, 18:30:39
1.70ct Black Onyx & 2.20ct Diamond, Platinum Cartier Brooch c.1925 (1 of 15)
AC Silver
Flag of United KingdomTyne and Wear, UK
Andrew Campbell, founder and owner of AC Silver, has been dealing in antique silver and antique jewellery since 1977. In addition to a premier retail premises in Newcastle, north-east England, Andrew has developed an internationally recognised online store, serving both new and return customers nationally and worldwide. Andrew personally sources a wide range of items, including antique jewellery, antique diamond rings and antique gemstone rings. Andrew has also developed a fine and comprehensive inventory of antique silverware, AC Silver is a respected and trusted specialist in its field.
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1.70ct Black Onyx & 2.20ct Diamond, Platinum Cartier Brooch c.1925

REF: C8627 / LA491005
£5,950
€6,951
$7,484
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Certified DealerApproved listing554 sales by dealerFree DeliveryAvailable for local pick-up
Certified DealerApproved listing554 sales by dealerFree DeliveryAvailable for local pick-up
Description
Stunning, fine and impressive 1.70 carat black onyx and 2.20 carat diamond Cartier brooch in platinum - boxed; part of our antique Cartier jewellery collections. This stunning original antique brooch has been crafted in platinum. The pierced decorated, navette-shaped Art Deco style design displays an impressive paralleling array of twenty-eight channel set rectangular cut onyxes, totalling 1.70cts. The black onyx formation is flanked with one hundred and twenty-eight pavé set Dutch cut diamonds, completing the design. The brooch secures to the reverse with a hinged pin and safety clasp. This 1920s brooch is hallmarked to the pin with the maker's mark 'Cartier' and has been independently tested using state of the art technology (Niton Xl2 Analyzer) and verified as platinum. This stunning 1920's brooch is supplied with an Idgl diamond and gemstone grading report card. This stunning Cartier black onyx and diamond brooch is fitted to the original hinged leatherette presentation box, with a satin and velvet lined interior, securing with a push fit catch. The interior of the cover bears the retailer's mark 'Wartski, 33 Mostyn Street, Llandudno'. Such original examples are becoming increasingly difficult to locate. Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone. Onyx Quality Cut Rectangular Cut Content 1.70 carats Diamond Quality Colour (average grades) G Clarity (average grades) Si2 Cut Dutch Content 2.20 carats Number of Diamonds 128
measurements
Length of setting 4.95cm/1.95' Width of setting 2.12cm/0.83' Across pin 3.5cm/1.38' Height of setting 2.65mm/0.1' Weight:- 5.51 grams
declaration
AC Silver has clarified that the 1.70ct Black Onyx & 2.20ct Diamond, Platinum Cartier Brooch c.1925 (LA491005) is genuinely of the period declared with the date/period of manufacture being c.1925
condition
This stunning original antique brooch is exceptional quality, set with impressive onyxes displaying fine colour. The impressive high colour graded diamonds display a fine white colour and brilliance. The original presentation box has sympathetic wear in keeping with age. The brooch is in exceptional condition and an excellent gauge of gold. Reflections in photographs may detract from the true representation of this impressive example of antique jewellery.
additional info
location
This 1.70ct Black Onyx & 2.20ct Diamond, Platinum Cartier Brooch c.1925 is located in Tyne and Wear, United Kingdom