Sterling silver ring with 3mm round-profile band and a single stunning 8mm cabochon gemstone,  set in cup setting.  The setting sits on top of the ring band so you can stack them or wear them with another plain ring band.     Hallmarked.
 
Main Group Image Left to Right:-
Iolite - Size N
Citrine - Size N
London Blue Topaz -  Size O
Rutilated Quartz - L½
Peridot - L½
Pink Tourmaline - N (not currently shown)
 
Please contact me if you require a different ring size or colourway.