18k crystal opal stud earrings

Item No. E157OX Tear drop crystal opal earrings.
Material: 18k yellow gold 2.34 gms
Opals: 2 x solid Coober Pedy crystal opals. Total 0.37 carat
Stone size: 7mm x 5mm
These earrings are pretty and dainty. Tear drop shape and set with a claw setting, the crystal opals have blues ,green and pink colours.
These earrings come with a five year manufacturer's guarantee and I think that is a very substantial benefit since this manufacturer has been in business since 1929!