Antique Blue John Sterling Silver Necklace Pendant Art Deco Cabochon Oval 1920s Bleu Jaune Womens Mens Rare Gemstone Jewelry Jewellery art deco earrings The bail has a split

The bail has a split in it but is still more than secure

The brooch has solid back and isn't hallmarked which is a good sign of age

adorned with CZ pear cut gemstone

60g and the clasp opens/closes tightly

typical of the mid Victorian era

Antique Blue John Sterling Silver Necklace Pendant Art Deco Cabochon Oval 1920s Bleu Jaune Womens Mens Rare Gemstone Jewelry Jewellery art deco earrings The bail has a splitDESCRIPTION: A petite antique art deco (c1920s) solid silver and genuine blue john mineral necklace pendant. The pendant is stamped "SILVER" on the rear. It weighs approx. 2. 47g and the size dimensions are in the later photos. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK (not far from me), it is in fact Britain's rarest mineral. The surface of the blue john has some natural fissures in it.