A Victorian gold green / blue opal ring. 
Cabochon cut , 11 x 10 x 7 mm in a basket setting.
The ring has not been sized and reflects the more delicate Victorian finger but is sizable . 
There is an inscription on the inside from WC to FY in script
Also marked 18ct and AM, makers mark
C1890. - 1900. 
Weight  2.77 gms
Internal crazing, sealed to the opal .