DESCRIPTION: A stunning genuine antique art deco (c1920s) sterling silver blue john ring. The ring is stamped and made by TLM (Thomas L Mott), an antique British jewellery designer. 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 O.5 or US 7.25 and it stamped "TLM STERLING ENGLAND". The ring weighs approx. 2.85g and the size dimensions are in the latter photos.
