Lab Grown White Opal in Sterling Silver

Gemstone Name: Gilson Opal
Location: created
Characteristics: A manmade opal first created by Pierre Gilson in France - this opal is very fiery and somewhat harder than it's natural counterpart - set in sterling silver with a 5 mm bail
Hardness: 5
Size: 12x31 mm and 4 mm thick 
Polish: excellent