Opalgemstoneauction, is one of the new online auction site, where you can buy or sell all kind of Australian and international Opals in one place. FREE REGISTRATION TO ALL . We Welcome all Australian and International buyers and sellers to join our friendly site. •No membership fees. •Exclusive wholesale prices. •Secure payment system via Paypal •User friendly online auction system •Built-in communication tools. Australian buyers please note 10% GST is added to final amount by Australian sellers to comply with Australian taxation laws. The 10% GST amount will be calculated and added to your order total in the checkout. International buyers all items are GST exclusive.