Handmade bar brooch in 15ct and 12ct yellow gold, 9ct white gold and silver, featuring one round cabochon cut 11 mm opal of estimated weight 3.1 carats, in middle, surrounded and acented on bar with 20 x old Swiss and single cut diamonds of estimated total weight 1.30 carats. Finished weight 11.85 grams. Overall size 77 mm. 2022 Gemmologist report (Insurance purposes).