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SOLD - 0.77ct Diamond and Onyx, Platinum Pendant - Art Deco - Antique Circa 1920

A stunning, fine and impressive original Art Deco, 0.77 carat diamond and onyx pendant in platinum; part of our diverse antique jewellery and estate jewelry collections

SKU: A4161
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SOLD - 0.77ct Diamond and Onyx, Platinum Pendant - Art Deco - Antique Circa 1920
SOLD - 0.77ct Diamond and Onyx, Platinum Pendant - Art Deco - Antique Circa 1920


This stunning 1920's diamond and onyx pendant has been crafted in platinum.

The iconic pierced decorated Art Deco design displays a central feature collet set Old European round cut diamond.

Two slightly smaller collet set Old European round cut diamonds displayed in a vertical formation above the feature stone, accent the design.

The millegrain decorated border is ornamented with four fancy cut cabochon black onyx to either side of the vertical arrangement.

The lower portion of the stylised pear shaped frame displays three, pavé set Old European round cut diamonds in addition to an eight-cut diamond.

All the diamonds are well colour matched.

The pendant is suspended from a contemporary 40.64cm/16" 18 ct white gold trace chain via an integrated ring loop attachment to the upper border of the frame.

This 1920's pendant is supplied with an independent diamond grading certificate for the feature diamond in addition to an independent diamond grading report card for the supporting stones.

The black onyx pendant has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

The contemporary trace chain is hallmarked with the 18 ct gold fineness mark(750).

The chain may be replaced with a chain of the same quality, in a style or length to meet your personal requirements.


This original antique pendant is fine quality, set with black onyx and very high colour graded diamonds.

The pendant is a very good gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this fine example of antique jewellery/estate jewelry.

Diamond Quality

Feature Diamond

Colour I

Clarity VS2

Cut Old European round

Content 0.35 carat

Dimensions 4.28mm x 4.23mm x 2.28mm

Supporting Diamonds

Colour (average grades) H

Clarity (average grades) SI1

Cut Old European round / Eight-cut

Content 0.42 carat

Total Diamond Content

0.77 carat


Length of drop 2.9cm/0.59"

Width of pendant 1.20cm/0.47"

Chain length 40.64cm/16"

View the full range of necklaces and pendants AC Silver
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Andrew Campbell started trading in antiques during the 1970s. Initially, Andrew lived in the South of England, travelling the country, searching for items of silver to buy. Andrew sold these items at various London markets and antique fairs. Over time, and through selling at a range of venues, Andrew built up a large and diverse customer base from private buyers to national and international trade customers.
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