Antique: Ruby and Diamond Initial Pendant 18 Kt Gold


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This is a WOW jewel from 19th century France. Studded with rubies and and diamonds in the monogram (technically a cipher) contains the initials N and C or G.  The letters are in an old Gothic style. The N is set with a mix of old cut and Rose Cut diamonds, and the C is set with cushion and oval cut rubies in a most vibrant red-pink, all in 18 Kt gold (tested). It sparkles with every flicker and flash of light.

Originally a brooch, it has been converted by a master jeweler who still specializes in custom work and antique jewellery. Two jump rings, also in 18 Kt gold, have been added so that it can be worn as a pendant. You can have your jeweler attach a chain, you can send us one of yours, or you can purchase one from our collection. We'd recommend a yellow or white gold rolo style link chain with solid gold links, 1.1mm in diameter (starting at $125 for 14 kt gold). If you are interested we can provide you with pictures of a similar example.

 Dimensions & Details: Monogram Pendant

  • The height 25 mm or 1 inch.
  • The width is 22 mm or .8 inches.


  • France.

Period & Hallmarks

  • 19th c. No hallmarks.


  • The brooch/pendant is in good antique condition, with general wear that one would expect in a piece of this age. There is light wear and tear, but no eye visible damage.

Monograms Vs. Ciphers

According to Monograms and Ciphers by A.A. Turbayne, the difference between the two is: “A Monogram is a combination of two or more letters, in which one letter forms part of another and cannot be separated from the whole. A Cipher is merely an interlacing or placing together of two or more letters, being in no way dependent for their parts on other of the letters. The pendant/brooch above is technically a cipher, but more people are familiar with the term monogram.

Find out how to care for your collection of antique and modern jewels: visit our Jewelry Care page to get advice on maintaining and storing your treasured pieces. One should always be gentle and take extra precautions when cleaning antique jewelry, especially old diamonds in a closed back setting.

If you are interested in reading more about the jewelry terms or decorative periods referenced throughout our site, visit our Resources section for additional information.

Outside of the U.S.? Please contact us for a shipping quote.

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