Stone: Natural silver nugget with copper Weight: 30.465 ct Size: 23.08 x 13.72 x 8.43 mm Treatment: None Origin: Keweenaw, Michigan, USA Our shipping costs have been verified and approved by Catawiki. We use an external shipping company that carries out the final inspection, collection, packaging and shipping; resulting in these shipping costs. The sale will take place only as available and as pictured (regardless of the lighting conditions). Without warranty, guarantee, liability for material expenses or return policy, etc. ..no commitment.. The buyer will be responsible for any import / export costs, customs and shipping charges, etc. Please also see our other items and save shipping and personal collection costs. In some photos, the stone was illuminated to show you its colour. We have photographed some stones with a light source placed below, in order to better demonstrate the colour of these pieces. Please also consider that differences in colour are possible, because every computer screen, monitor and mobile phone display MAY show colours a little differently!