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ID #SA1240120
FOR SALE
£1,275
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18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g
For sale by AgAu Jewellery
for sale €1,492     $1,619
£1,275
AgAu Jewellery

AgAu Jewellery

Sellingantiques Verified Since Apr 2011
Browse dealers 289 items
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Id #SA1240120
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18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g

1940 - 1960
For Sale by AgAu Jewellery
Description

A lovely vintage 18ct Gold Black Opal and Diamond Cluster Pendant Necklace the pendant is marked 18ct gold and the chain is marked 18ct gold. The pendant is stunning quality. The black opal is approx (3.00ct) the opal is incredible quality with vivid greens, blues and yellows, from certain angles the opal looks to have a fiery orange or red hue, it shows an array of colour from all different angles. Above the opal are 3 brilliant cut diamonds adding sparkle without taking away from the lovely black opal. The pendant is presented on a 18ct gold 18"/45cm chain. The pendant measures 1.9cm long (inc. bale) x 1.1cm wide and weighs an impressive 8.5 grams. The item is presented in excellent condition and certainly an investment piece.

Metal: 18ct Yellow Gold

Stones: 1 x black opal (3.00ct), 3 x diamonds, totalling (0.10ct)

Size: Pendant 1.9cm long, 1.1cm wide. Chain 18"/45cm 

Hallmarks: Pendant marked for 18ct gold and chain marked for 18ct gold.

Weight: 8.5g

Condition: This item is presented in excellent condition. 

Please NOTE if you are purchasing from outside the UK there maybe customs charges that have to be paid before shipping due to now being charged before the parcel leaves the UK. This payment is in addition to any extra postage charges. As a rule if you are in Europe you will be charged your local VAT rate on the purchase price. If in the USA the 20% tariff + Fees (NOT my fees, Royal Mails) of the purchase price will have to be paid prior to shipping. If you have any questions concerning your specific location please do not hesitate to ask and I will endeavor to answer any questions. Thanks Dan

Physical Dimensions
Height
1.9cm (0.75")
Width
1.1cm (0.43")
Depth
0.9cm (0.35")
Declaration

AgAu Jewellery has dated this Black Opal Pendant Necklace to the 1950s.

Reference Numbers
Sellingantiques Reference
SA1240120
Dealers Internal Reference
103680
Dealers Notes

To locate this item on our website use the 'Internal Ref' below on agaujewellery.com where you can also view and/upgrade your packaging, pay using Credit/Debit card, PayPal, American Express, GooglePay and ApplePay

________________

All items are shipped using our standard of 5 working days, for express shipping please order on our website. EUROPEAN & WORLDWIDE CUSTOMERS ONLY: Please add £32 at the Stripe shipping option for European and £45 if you live anywhere else in the world.

________________

We offer a 14 day return on all items as standard, by placing an order with Selling Antiques you accept our terms of sales & return policy agaujewellery.com/terms-and-conditions

Description
A lovely vintage 18ct Gold Black Opal and Diamond Cluster Pendant Necklace the pendant is marked 18ct gold and the chain is marked 18ct gold. The pendant is stunning quality. The black opal is approx (3.
“
00ct) the opal is incredible quality with vivid greens, blues and yellows, from certain angles the opal looks to have a fiery orange or red hue, it shows an array of colour from all different angles.
AgAu Jewellery

Above the opal are 3 brilliant cut diamonds adding sparkle without taking away from the lovely black opal. The pendant is presented on a 18ct gold 18"/45cm chain. The pendant measures 1.9cm long (inc. bale) x 1.1cm wide and weighs an impressive 8.5 grams. The item is presented in excellent condition and certainly an investment piece.

fig 1. An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents.
fig 1. 18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g

Metal: 18ct Yellow Gold

Stones: 1 x black opal (3.00ct), 3 x diamonds, totalling (0.10ct)

Size: Pendant 1.9cm long, 1.1cm wide. Chain 18"/45cm 

Hallmarks: Pendant marked for 18ct gold and chain marked for 18ct gold.

fig 2. An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents.
fig 2. 18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g

Weight: 8.5g

Condition: This item is presented in excellent condition. 

Please NOTE if you are purchasing from outside the UK there maybe customs charges that have to be paid before shipping due to now being charged before the parcel leaves the UK. This payment is in addition to any extra postage charges. As a rule if you are in Europe you will be charged your local VAT rate on the purchase price. If in the USA the 20% tariff + Fees (NOT my fees, Royal Mails) of the purchase price will have to be paid prior to shipping. If you have any questions concerning your specific location please do not hesitate to ask and I will endeavor to answer any questions. Thanks Dan

Height
1.9cm (0.75")
Width
1.1cm (0.43")
Depth
0.9cm (0.35")
Date of Manufacture

AgAu Jewellery has dated this Black Opal Pendant Necklace to the 1950s.

Reference Numbers
Sellingantiques Ref
SA1240120
Dealers Internal Ref
103680
AgAu Jewellery
AgAu Jewellery
Sellingantiques verified Since Apr 2011

If you would prefer to pay via credit/debit card please get in touch via email or phone, thank you

Dealer Profile

You can view the stock and full dealer information on the AgAu Jewellery Profile Page

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An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents.
1 / 16
Film
Film of 18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g
Archive I An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents.

18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g

Film
Archive II An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View II
Archive III An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View III
Archive IV An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View IV
Archive V An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View V
Archive VI An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View VI
Archive VII An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View VII
Archive VIII An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View VIII
Archive IX An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View IX
Archive X An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View X
Archive XI An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View XI
Archive XII An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View XII
Archive XIII An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View XIII
Archive XIV An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View XIV
Archive XV An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents. View XV
Enlarged Archival View
AgAu Jewellery

AgAu Jewellery
Telephone 01617 061316
Location
Stockport
Great Manchester
United Kingdom
Dealer Profile Page sellingantiques.co.uk/AgAu
Verified Since Apr 2011
Items For Sale 289
Items Sold 1,897
AgAu Jewellery
AgAu Jewellery
Verified Since Apr 2011
View Dealer Info
Location: Stockport, Great Manchester, United Kingdom
Profile: sellingantiques.co.uk/AgAu
Verified
Apr 2011
For Sale
289
Sold
1,897
An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents.
18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g
Ref: SA1240120
An 18ct yellow gold necklace featuring an oval cabochon black opal displaying green and blue play-of-colour, framed in a contoured gold setting with small diamond accents.
Film of 18ct Gold Black Opal and Diamond Cluster Pendant Necklace Heavy 8.5g
Detail View 1
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Detail View 14
Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectNecklaces
  • Period1940 - 1960
  • StyleLate 20th Century
  • Material18ct Gold, Black Opal, Diamond
  • ColourGold and Green
  • MotifsCabochon opal, Claw setting, Diamond accents, Curved frame
  • SizeH 1.9 cm (1 in) x W 1.1 cm (0 in) x D 0.9 cm (0 in)

This pendant necklace dates from the 1950 period in a late 20th century style. The piece is formed of 18ct yellow gold, a black opal with vivid green and blue play-of-colour, and three brilliant cut diamonds. Visible details include a curved gold setting with a claw setting for the oval cabochon opal, diamond accents above the stone, and a chain link pattern on the necklace. The pendant measures 1.9 cm high, 1.1 cm wide, 0.9 cm deep, and weighs 8.5 grams with an 45 cm chain length. The item is marked with 18ct gold hallmarks on both the pendant and the chain. Wearers wear this necklace around the neck as personal jewellery for daily wear or special occasions, complementing various necklines in modern wardrobes. The purple fabric background in the photograph provides contrast to the gold metal and colourful opal stone.

FAQs

A black opal and diamond pendant combines a natural black opal, defined by its dark body tone and play-of-colour, with diamond accents set into precious metal such as 18ct gold. These designs gained popularity in fine jewellery production throughout the late twentieth century.

Fine opal pendants are typically cast in 18ct gold to provide structural durability for the gemstone. The central cabochon opal is usually secured with claw or bezel settings, while accent diamonds are grain or claw-set into the surrounding metal frame.

Authentic gold pieces display official hallmarks indicating purity, such as 750 for 18ct gold. Natural black opals exhibit irregular, multi-directional colour patterns, unlike synthetic doublets or triplets which often show uniform layers when viewed from the side profile.

A black opal gold necklace can be worn as a focal piece against neutral clothing, such as black or cream garments, allowing the play-of-colour to display clearly. It pairs effectively with both formal attire and refined everyday wear.

Opals contain natural water content and should be kept away from extreme heat, dry environments, and harsh chemicals. Clean the pendant using mild soap, warm water, and a soft cloth, avoiding ultrasonic cleaners which can damage the gemstone structure.
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