Ring Art Deco diamonds and synthetic sapphires

2.400 €
Expertise and authentication
Secure delivery
Digital certificate
Payment in 3 installments free of charge (up to €4,000) - Free return within 14 days
Ring Art Deco engagement rings in white gold 18Kt and paltinium (hallmarks: eagle head and dog) set in its center with an old-cut diamond weighing approx. 0.15 Ct (estimated color H, and estimated clarity SI2), in a setting of old-cut and half-cut diamonds (total estimated weight approx. 0.60 Ct), and baguette-cut synthetic sapphires. French work, circa 1935, Art Deco. Gross weight: 4.23 g Design height: 1.20 cm Design width: 1.80 cm Finger size: 56 (diameter 17.75/ US 7.50). Condition: very slight micro-scratches on the gold and silver parts. paltiniumparts, slight wear on the setting, and slight abrasion on the stones, see photos.   Man has been making synthetic sapphires in the laboratory since the early 20th century. French chemist Auguste Verneuil developed the first process in 1902. These are chemically and physically identical to natural sapphires.  They are a regular feature of  Art Deco because the availability of natural sapphires was very limited at the time.   All our engagement rings.
Delivery and returns

The Buyer has the choice between several delivery methods:

  • Home delivery by courier only for Orders delivered within Paris.
  • Home delivery by La Poste Colissimo and DHL for Orders delivered worldwide, in order to provide you with the best service.

All packages are insured at declared value.

When your order is shipped, you will receive an email indicating your Colissimo or DHL tracking number. Using this number, you will be able to track your order directly by connecting to the website of our carriers, La Poste Colissimo or DHL, with whom we have made specific agreements concerning the nature of the items and deadline commitments.

You can return your order within 14 days after receipt of the package, provided that the product has not been worn and that the jewelry has its original packaging (label, plastic and pouch).

For any return request, please contact our customer service: contact@castafiore.fr

Have a question? Contact us directly.

Contact us at +33(0)608130158 or fill in the fields below.

Authentication & Certification

Charlotte Rey and Anne Borde help individuals who ask themselves a thousand questions when selling their jewelry(s). How much is it worth on the market? Is it solid gold or gold plated? How to identify stones? And, after all, what if it came from a prestigious house?

With the jewel in hand, the founders of Castafiore determine the nature of the materials, the weight of the gold, the carats of the stones, etc. They are also looking for the trace of a hallmark, a sign of a possible renowned jeweler.

This expertise then gives rise to a digital certificate of authenticity registered in the Blockchain (GoodsID), in other words traceable and unfalsifiable; it will accompany the jewel throughout its existence, over the course of its owners.



Anne Borde worked for 30 years in the world of auctioneers and auctions, notably in Drouot. She has inventoried countless collections and estates; she had thousands of objects in her hands which she examined from every angle. His sharp eye misses no nugget.

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