The Scottish Thistle Brooch with 5A cubic zirconia plated with Rhodium and 18k yellow gold. Scotlands National Emblem. The designs have been produced exclusively for Karianne’s Secret and are only available from our outlets. We have spent considerable of time and money perfecting these replicas and we are confident that they a The Scottish Thistle Brooch with 5A cubic zirconia plated with Rhodium and 18k yellow gold. Scotlands National Emblem