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<p>[QUOTE=&quot;desertgem, post: 1216465, member: 15199&quot;]A rough specific gravity test needs the volume of the object and its weight. Weight is easy. Volume will take a little work. You will need a container that can hold the object. Fill it with enough water so that when the object is put in that water <b>doesn&#039;t </b>over flow the edge. Ok , now take the object out of the container, make a mark at the water level. (level1).Then put the object in and mark the level of the water ( level2). Now you need some kind of measuring device such as a measuring cup that is marked in cc or ml.Take the object out , and measure the amount of water that needs to be added to bring the level1 back up to the level2 mark. That is the volume of the object.&nbsp; sp. gr. = the wt. in grams / volume of object. Sterling silver should be about 10.2-10.3.</p><p><br /></p><p>Oh, forgot, the cloth, etc. will have to be removed, although if it is small, it shouldn&#039;t make a significant difference.[/QUOTE]</p><p><br /></p>

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