Antique Sterling Silver Blue John Necklace Pendant Star Flower Art Deco Marcasite Bleu Jaune Womens Mens Rare Gemstone Vintage Retro Jewelry antique bird locket It's stamped "925" and weighs

It's stamped "925" and weighs approx

It dates to 2015

The earrings are stamped "9ct" and the screws open and close like they should

The brooch is large and in size and the build quality is very good

Antique Sterling Silver Blue John Necklace Pendant Star Flower Art Deco Marcasite Bleu Jaune Womens Mens Rare Gemstone Vintage Retro Jewelry antique bird locket It's stamped "925" and weighsDESCRIPTION: An antique art deco sterling silver and genuine blue john mineral necklace pendant. The pendant is stamped "SILVER". It weighs 5. 69g 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.