All opals, pendants, jewellery etc are ground, sanded, polished and assembled in Melbourne Australia. Photos are taken under a 60w daylight bulb. Actual item is shown in photos. Photos are greatly magnified showing imperfections which the eye can't see. Please read terms of sale.The item "AUSTRALIAN BOULDER OPAL GEMSTONE POLISHED CABOCHON UNSET 54.5ct OCA10478" is in sale since Thursday, January 17, 2019. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Boulder Opals". The seller is "opalcraftaus" and is located in Melbourne. This item can be shipped worldwide.