Measures : 17 x 14 x 5 mm approximately (6.35mm = 1/4 inch). All items posted via Registered International Post. The item "Genuine Natural Australian Queensland Boulder Opal Picture Cut Stone 17x14mm" is in sale since Thursday, May 23, 2019. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Boulder Opals". The seller is "opalwholesalers" and is located in Kensington Gardens, SA.This item can be shipped worldwide.