Golden South Sea pearls are farmed in the waters of Indonesia and the Philippines from the golden-lipped oyster variety pinctada maxima, and in such natural golden tones, are quite rare. Golden pearls may reach up to 13mm, with sizes tapering off after 15mm. Such a well-matched necklace in sizes from 15 to over 17mm, with an even, strong and warm colour and marvellous, almost metallic, lustre, is a rare collection of these gems.