Antique Art Deco Blue John Solid Silver Ring Oval Solitaire Signet 1920s Bleu Jaune Womens Rare Fluorite Gemstone Jewelry Jewellery t bar The item is stamped SILVER"

The item is stamped SILVER" on the rear

38g and size dimensions are in the later photos

adorned with numerous sparkly diamond pastes

DESCRIPTION: A lovely antique Victorian pietra dura brooch

Blue John has as a gemstone has many natural inclusions and formation lines

Antique Art Deco Blue John Solid Silver Ring Oval Solitaire Signet 1920s Bleu Jaune Womens Rare Fluorite Gemstone Jewelry Jewellery t bar The item is stamped SILVER"DESCRIPTION: A genuine antique art deco (c1920s) solid silver and genuine blue john ring. The ring is stamped "SILVER". 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 ring sizes at approx. UK P or US 7. 5 and weighs approx. 2. 11g.