Vintage JOHN HART Sterling Silver Amethyst Necklace Pendant Celtic Knot Iona Scottish Genuine Gaelic Solid 925 Womens Jewelry Jewellery nouveau brooch The ring is hallmarked 18ct

The ring is hallmarked 18ct gold with British Birmingham hallmarks

The item is hollow in the core

therefore your chain needs to be thinner than that

It's stamped "9ct Back and Front" and "Sterling Silver"

Vintage JOHN HART Sterling Silver Amethyst Necklace Pendant Celtic Knot Iona Scottish Genuine Gaelic Solid 925 Womens Jewelry Jewellery nouveau brooch The ring is hallmarked 18ctDESCRIPTION: A high quality genuine vintage John Hart of Iona sterling silver amethyst pendant, with a beautiful Celtic knot pattern. The rear of the brooch is stamped "SILVER IONA" has John Harts makers mark. The item weighs approx. 3. 09g and the size dimensions are in the later photos.