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ID #SA1164580
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£2,450
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Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930
AC Silver
for sale €2,867     $3,112
£2,450
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
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Id #SA1164580
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Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

1920 - 1940
For Sale by AC Silver
Description

A fine and impressive antique 0.50 carat onyx and 0.20 carat diamond, platinum Art Deco pendant; part of our diverse antique onyx jewellery and estate jewelry collections.

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

The pierced decorated lozenge-shaped pendant displays a feature scalloped 0.50ct onyx panel accented with a central millegrain decorated foliate design to the centre.

The scalloped frame of the panel supports an articulating feature collet set Old European round cut diamonds, accented with a circular-shaped halo and surmounted with a collet set Dutch cut diamond, in a vertical formation.

The lozenge shaped pendant frame is further embellished with pierced geometric designs accented with eight Dutch cut diamonds.

The feature setting is suspended from a tapering bale ornamented with a horizontal marquise-shaped setting incorporating a single pavé set Dutch cut diamond.

The antique pendant suspends from a 17' platinum chain via two ring loops to the upper border of the design, securing with a push fit 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 IDGL diamond grading report card.

This black onyx and diamond pendant in platinum is a striking choice for milestone birthdays, anniversaries or Valentine's Day, offering a bold and distinctive alternative to traditional gemstone jewellery.

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.

Condition

This impressive antique 1930s pendant is excellent quality, set an impressive onyx panel and high colour graded diamonds displaying a fine white colour and brilliance.

The pendant is an excellent gauge of platinum and is in excellent condition.

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

Onyx Quality

Cut Panel

Content 0.50 carat

Diamond Quality

Colour (average grades) H

Clarity (average grades) SI2

Cut Old European/Dutch

Content 0.20 carat

Number of Diamonds

11

Dimensions

Length of drop 4.4cm/1.73'

Width of pendant 2.02cm/0.8'

Height of setting 3.48mm/0.14'

Chain length 43.18cm/17'

Weight

5.73 grams (including chain)

Date: Circa 1930

A video is available upon request.

Physical Dimensions
Height
0.3cm (0.12")
Width
2cm (0.79")
Depth
43.2cm (17.01")
Declaration

AC Silver has dated this Art Deco Platinum Pendant to the 1930s.

Reference Numbers
Sellingantiques Reference
SA1164580
Dealers Internal Reference
C9427
Dealers Notes

PLEASE NOTE: AC Silver takes pride in offering only quality items for sale.

This pride in quality includes the professional, efficient and personal service extended to all AC Silver customers.

All items purchased usually dispatched within 24 hours following cleared payment.

All items are professionally and securely packaged, sent FREE of charge and are FULLY INSURED during transit.

FREE worldwide international deliveries are via FedEx International Priority Service.

AC Silver is pleased to provide a 30-day money back guarantee.

Description
A fine and impressive antique 0.50 carat onyx and 0.
20 carat diamond, platinum Art Deco pendant; part of our diverse antique onyx jewellery and estate jewelry collections.
AC Silver

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

fig 1. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 1. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

The pierced decorated lozenge-shaped pendant displays a feature scalloped 0.50ct onyx panel accented with a central millegrain decorated foliate design to the centre.

The scalloped frame of the panel supports an articulating feature collet set Old European round cut diamonds, accented with a circular-shaped halo and surmounted with a collet set Dutch cut diamond, in a vertical formation.

fig 2. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 2. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

The lozenge shaped pendant frame is further embellished with pierced geometric designs accented with eight Dutch cut diamonds.

The feature setting is suspended from a tapering bale ornamented with a horizontal marquise-shaped setting incorporating a single pavé set Dutch cut diamond.

fig 3. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 3. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

The antique pendant suspends from a 17' platinum chain via two ring loops to the upper border of the design, securing with a push fit fastening.

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

fig 4. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 4. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

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

This black onyx and diamond pendant in platinum is a striking choice for milestone birthdays, anniversaries or Valentine's Day, offering a bold and distinctive alternative to traditional gemstone jewellery.

fig 5. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 5. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

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.

Condition

This impressive antique 1930s pendant is excellent quality, set an impressive onyx panel and high colour graded diamonds displaying a fine white colour and brilliance.

fig 6. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 6. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

The pendant is an excellent gauge of platinum and is in excellent condition.

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

Onyx Quality

fig 7. A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
fig 7. Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

Cut Panel

Content 0.50 carat

Diamond Quality

Colour (average grades) H

Clarity (average grades) SI2

Cut Old European/Dutch

Content 0.20 carat

Number of Diamonds

11

Dimensions

Length of drop 4.4cm/1.73'

Width of pendant 2.02cm/0.8'

Height of setting 3.48mm/0.14'

Chain length 43.18cm/17'

Weight

5.73 grams (including chain)

Date: Circa 1930

A video is available upon request.

Height
0.3cm (0.12")
Width
2cm (0.79")
Depth
43.2cm (17.01")
Date of Manufacture

AC Silver has dated this Art Deco Platinum Pendant to the 1930s.

Reference Numbers
Sellingantiques Ref
SA1164580
Dealers Internal Ref
C9427
AC Silver
AC Silver
Sellingantiques verified Since Apr 2009

Welcome to ac silver antique silver and antique jewellery specialists since 1977

Dealer Profile

You can view the stock and full dealer information on the AC Silver Profile Page

Trade Associations

AC Silver is a registered member of LAPADA  CINOA

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A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
1 / 11
Archive I A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.

Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930

Archive II A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View II
Archive III A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View III
Archive IV A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View IV
Archive V A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View V
Archive VI A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View VI
Archive VII A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View VII
Archive VIII A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View VIII
Archive IX A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View IX
Archive X A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View X
Archive XI A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop. View XI
Enlarged Archival View
Telephone 0191 240 2645
Location
35B St Georges Terrace
Jesmond
Newcastle Upon Tyne
Tyne and Wear
NE2 2SU
United Kingdom
Dealer Profile Page sellingantiques.co.uk/ac
Verified Since Apr 2009
Items For Sale 459
Items Sold 103
AC Silver
AC Silver
Verified Since Apr 2009
View Dealer Info
Location: 35B St Georges Terrace, Jesmond, Newcastle Upon Tyne, Tyne and Wear, NE2 2SU, United Kingdom
Verified
Apr 2009
For Sale
459
Sold
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A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
Antique Art Deco 0.50ct Onyx and 0.20ct Diamond, Platinum Pendant Circa 1930
Ref: SA1164580
A diamond-shaped Art Deco platinum filigree pendant set with carved black onyx and a central suspended diamond drop.
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Every single antique dealer on our platform is individually approved by our internal team. We verify their professional trade history, ethical standards, and photographic quality to ensure a secure, high-standard buying environment. Upon joining, every dealer agrees to a strict 9-point code of conduct. While issues can occasionally arise, our dealers typically resolve them swiftly and directly with the buyer. In fact, since our founding in 2002, Sellingantiques has only had to step in to help resolve an issue on roughly five occasions—a true testament to the quality of our dealers and their dedication to your happiness.
Our dealers are highly experienced in packing and shipping fragile, high-value antiques. Because you are in direct contact with the dealer, you will be able to easily go through all available shipping and insurance options together to ensure your item arrives safely.
Antiques are the ultimate green purchase. By choosing historical pieces over newly manufactured goods, you completely eliminate the carbon footprint of modern mass production while preserving exceptional, timeless craftsmanship.

Jewellery from the Art Deco period is recognised for its bold geometric shapes, sharp lines, and symmetrical patterns. Designs often featured high-contrast combinations, such as bright diamonds paired against dark onyx or vibrant gemstones, set in white metals like platinum.

Art Deco pendants were predominantly crafted using platinum or white gold due to their strength and neutral colour. Settings featured fine filigree openwork, detailed millegrain edging, black onyx, and natural diamonds or calibre-cut colored gemstones.

Authentic pieces from this period exhibit precise hand-carved filigree work, fine millegrain borders along metal edges, and period-accurate diamond cuts such as old European or single cuts. Platinum hallmarks and period-specific maker marks also confirm authenticity.

While primarily worn as personal adornment, antique fine jewellery can be displayed within a glass cloche, presented inside a velvet-lined shadow box frame, or kept on a marble valet tray on a dressing table.

Clean platinum and diamond elements gently using warm water, mild liquid soap, and a soft-bristled brush. Avoid harsh chemical cleaners or ultrasonic machines on onyx, as natural gemstones can be porous or delicate.
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