A selection of opals from The National Opal Collection

Mr Wilson Yuen, world president ICA and Mr Kong Sui, president of China Mineral and Gem Show

Mr Kong Sui, president of China Mineral and Gem Show

Mr Wilson Yuen, world president ICA

(L to R) Andrew Cody, director The National Opal Collection; Mr Wilson Yuen; Mr Kong Sui; Damien Cody, ICA Ambassador

An opal pineapple from The National Opal Collection