Vintage Derbyshire Blue John Cabochon Ring Size:9.75 it’s signed and numbered with

it’s signed and numbered with French hallmarks for 18 karat gold

making full use of the platinum's natural strength to create a wonderfully intricate/delicate pair

Dating to c

It's set with a central pink tourmaline

This brooch was likely made in Australia

Vintage Derbyshire Blue John Cabochon Ring Size:9.75 it’s signed and numbered withDATE: Vintage, c. 1970 Elegant vintage single stone ring dating from the 1970s. It's set with a shallow domed cabochon of Derbyshire blue john, cut to show off the striking purple, white, and yellow jagged colour banding the stone is known for. A Victorian style 9 karat gold ring mount completes the look. STONES Derbyshire Blue John MEASUREMENTS Size: 6. 25 Rise off finger: 5. 6mm Head: 11. 4 x 9. 9mm WEIGHT 3. 1g MARKS English hallmarks for 9k gold,