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Art Nouveau, 1895 to 1920s


Tiffany & Co 14k Gold Signet Ring in Original Box

Size Guide

This very rare antique Tiffany & Co Art Nouveau 14k gold signet ring is its original blue box. Set with an oval Sapphire in the most beautiful shade of blue. Art Nouveau inspired design.

The setting measures 13.5mm North-South. The Sapphire is 10mm by 8mm, estimated at 3 carats. The stone is replaced and suits it very well.

The ring size is 4.5 US. It is engraved "Rachel F. H. Thomas, 23" inside the band. The number 23 could be a date but that cannot be confirmed. It is fully hallmarked "Tiffany & Co, 14k". The ring weighs approximately 8.1 gram.

The blue box we all love is a little darker today than it was when originally made. Both the ring and box are in good condition, there is loss of detail on the ring's shoulders due to regular wear and age and some wear to the leather cover of the box.

Tiffany & Co did carry 14k gold jewelry, some of these pieces belonging to important collections, featured in auctions at prestigious auction houses and featured in books which include G.I.A. courses. The exclusive use of 18k is a more recent event.


Signet Rings

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Size Chart

This information is intended to help you understand our sizing methods.

Please note many small measurements are in millimeters. It is a Jewelry Industry standard for accuracy.

You can download and print the Ring Sizing Chart. Make sure to follow the directions closely for best accuracy. Most rings can be re-sized unless otherwise noted. The cost of sizing is not included, please inquire with ring information and size required for an estimate.

Our model's hand is approximately 5" wide or 12 cm as seen in this image: 

Our Estate Jewelry measuring guide - model's hand.

We measure bracelets based on their wearable length, not the actual length. We do this because chunky bracelets will have a smaller wearable length than the actual length as the thickness of the bracelet reduces the internal measurement. If at any time you would like the actual length and is not in the description, please feel free to contact us.

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