This genuine Victorian, 9ct rose gold, dropper Brooch boasts 13ct of natural Boulder Opal.The Brooch is set on a 9ct rose gold bar - the pin has been replaced over the years.The Boulder Opals display reds, greens, yellows, orange, blues, turquoise - a fabulous kaleidoscope of colours.It weighs 8.7 grams.In very good condition it looks fabulous when worn.The bar is 62mm - just over 2.25 inches.The top Boulder Opal is 8mm across and 14mm down - that's just over 1/4 of an inch by just over 1/2 an inch.The dropper Boulder Opal is 20mm across and down - that's just over 3/4 of an inch.