Designer Silver Shell Ring

Vintage designer sterling silver shell design ring . It is approximately a UK size L. Weight is 13 grams.  The frontage measures approximately 3 x 2 cm. It is signed with makers marks  "GM" and "925" and has silver import hallmarks for London 1991. It is in very good condition.

Condition: Very good condition 
Colour/Gemstone:  Silver
Metal: Sterling Silver
Size: UK size L approximately
Era: 1991