Vintage 18ct 18k Gold Diamond Tourmaline Ring Cluster Halo Solid 750 1973 Green Gemstone Cocktail Yellow Womens Jewelry Jewellery UKM.5 US6.5 scandinavian The links will be hollow

The links will be hollow in the core

I imagine the cameo frame was originally part of a different item

The pendant is stamped "STERLING" on the rear

The rear of the brooch is stamped "STG" for sterling silver and has an old fashioned C clasp

Vintage 18ct 18k Gold Diamond Tourmaline Ring Cluster Halo Solid 750 1973 Green Gemstone Cocktail Yellow Womens Jewelry Jewellery UKM.5 US6.5 scandinavian The links will be hollowDESCRIPTION: A gorgeous 1970s vintage diamond and green tourmaline cluster ring, made from solid 18ct 750 yellow gold. The ring is fully hallmarked for 18ct gold, dating to 1973. It sizes at approx. UK M. 5 or US 6. 5 or 17mm and weighs approx. 4. 09g.