Very Bright Mens 14k Gold Opal Signet Ring.  The Stunning Australian Opal measures 12.5 mm x 15.2 mm with the highly sought after EXOTIC Full Spectrum  Bright Play of Color shaped as a Baroque/Freeform Cut doublet with approximate weight of 8cts (the stone is set and am not able to weigh - see above dimensions).  The ring measures 17.5 mm x 14.6 mm at the head and sits up 6.7 mm off the finger and has approx 23 grams of Gold.