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18" French Opal Rock Crystal Necklace, Ruby Diamond Clasp

SKU: X3661
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This is an exquisite French Opal Rock Crystal necklace! This beauty boasts a string of Opal beads, with faceted Rock Crystal sandwiched in between. The Opal beads hold an abundance of colour, almost bursting at the seams with fiery oranges, violets and lime greens!

The beads on the necklace softly graduate in size, eventually meeting at the 18ct Gold clasp which is inlaid with a cherry red Ruby and two scintillating Diamonds. This decadent Art Deco necklace is too good to pass up, and we think it'll be the first thing you reach for when you need a finishing touch to an all important event!

Item Details:

ERA: Art Deco (1920-1939).

MEASUREMENTS: Necklace is 18" or 45.5cm long.
Opal beads graduate from 5mm to 11.5mm in diameter. 
Ruby is 4.5mm long x 3.5mm wide.
Diamonds are approx. 2mm in diameter.
Extension chain is 3" long. 
Weight: 30.5g.

MATERIALS:  Opal, Rock Crystal, 18ct Gold clasp, Ruby, Diamond.

STAMPS & HALLMARKS:  French Eagles head on base of clasp for 18ct Gold.

PACKAGING: Your order will be gift-wrapped free of charge in a Lillicoco cardboard box made from recycled materials, tied with a ribbon.


VERY GOOD. This French Opal Rock Crystal necklace is in very good condition overall. The beads are smooth and round, and the piece has been intricately strung together. The clasp allows you to wear this piece with absolute confidence and there is a safety chain just for extra good measure. There is very minimal wear to this piece overall, the only thing to note is some subtle, and natural, discolouration between some of the beads, but the tones within the Opals are constantly changing depending on the light!


All orders are shipped using DHL express and are securely padded in transit, with full tracking and insurance for your peace of mind. Alternate couriers are available by special request.

  • FREE EXPRESS DELIVERY on all orders worldwide!
  • NEXT-DAY delivery to the UK and EU
  • Delivery to the USA in TWO WORKING DAYS
  • Orders placed by 1pm (GMT) will be dispatched the same day


You can return your item for a full refund for any reason by simply getting in touch to let us know within 14 days of receiving it.


This item will arrive beautifully gift wrapped in a Lillicoco presentation box, tied up with a pink ribbon. You’ll also receive a handwritten information booklet and free polishing cloth too!

Please message us or call +44(0)117 925 4798 if you have any questions!