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1.05ct Onyx and 0.35ct Diamond, Platinum Pendant - Antique Circa 1920

A fine and impressive antique 1.05 carat onyx and 0.35 carat diamond, platinum pendant; part of our diverse antique jewellery and estate jewelry collections

SKU: C4025

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1.05ct Onyx and 0.35ct Diamond,  Platinum Pendant - Antique Circa 1920 Video
Onyx and Diamond Pendant
1.05ct Onyx and 0.35ct Diamond, Platinum Pendant - Antique Circa 1920


This fine and impressive antique pendant has been crafted in platinum.

The drop style pendant displays a feature collet set Old European cut diamond, encircled by a torus shaped, faceted onyx segmented into twelve sections.

The outer circumference of the feature cluster design is encircled with a paralleling platinum border flanking a delicate undulating band.

The cluster is displayed to the lower border of a linear drop comprised of two faceted onyx panels divided by an individually collet set Old European cut diamond.

The pendant suspends from a contemporary 18 ct white gold trace chain via an integrated bifurcating bale to the upper border of the design, and secures with a conventional spring-loaded bolt ring fastening.

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

This onyx and diamond pendant is supplied with an independent diamond grading report card.

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.

View the complete range of jewellery at AC Silver

AC Silver


This impressive antique 1920s necklace is fine quality set with an impressive onyx and very high colour graded diamonds, displaying a fine white colour, brilliance and presence.

The necklace is a very good gauge of gold and is in excellent condition.

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

Onyx Quality

Cut Mixed

Content 1.05 carats

Diamond Quality

Colour (average grades) I

Clarity (average grades) SI1

Cut Old European round

Content (total) 0.35 carat


Length of drop 4.5cm/1.77"

Width of setting 1.25cm/0.49"

Chain Length 45.72cm/18"


2.01 grams (excluding chain)

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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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