14k diamond and Australian white opal pendant

Preowned 14k yellow gold pendant holds an A quality oval (Australian White) Approximately 14 x 9.5 mm. The opal is horizontally mounted among 30 brilliant round diamonds weighing approximately 0.25 carat. All diamonds melee is of I-J in color and S11-S12 in clarity Appraisal Value $1250 on 7/20/21