18 g / 0.63 oz. I measure in centimeters and grams and then convert to US measurements, so the most accurate numbers are the metrics. The US measurements should only be seen as guides. Weight is measured on a digital kitchen scale.Please ask me any questions you might have. I'm more than happy to help! The item "Antique Danish Art Nouveau Moonstone Silver Brooch S A J Jacobsen Evald Nielsen" is in sale since Wednesday, February 19, 2020. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Vintage Ethnic/Regional/Tribal\Scandinavian". The seller is "caddiekatie" and is located in Aarhus. This item can be shipped worldwide.