Vintage Blue John 9ct Gold Necklace Pendant Solid 9k 9kt 1981 Hallmarked Small Oval Bleu Jaune Rare Gemstone Jewelry Jewellery treble clef The rear is engraved with

The rear is engraved with initial

99g and the size dimensions are in the last couple of photos

The piece is fully hallmarked dating 1903 and all the enamel is present

The item is stamped with foreign silver marks

The item opens/closes well and has it's original glass and mourning hair

Vintage Blue John 9ct Gold Necklace Pendant Solid 9k 9kt 1981 Hallmarked Small Oval Bleu Jaune Rare Gemstone Jewelry Jewellery treble clef The rear is engraved withDESCRIPTION: A genuine vintage solid 9ct gold blue john necklace pendant. The pendant is hallmarked for 9ct gold, dating to 1986. It weighs 1. 61g and the size dimensions are in the later photos. One side of blue john has a few minor chips to it's edge (see pictures), I can't tell if these are inclusions or minor chips, I'll let you make your mind up. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK (not far from