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Comparative Weights

Coin Silver
0.978	times as heavy as	Fine Silver
0.995	times as heavy as	Sterling Silver
Sterling Silver
0.987	times as heavy as	Fine Silver
1.005	times as heavy as	Coin Silver
0.899	times as heavy as	10K Yellow Gold
0.796	times as heavy as	14K Yellow Gold
0.668	times as heavy as	18K Yellow Gold
0.485	times as heavy as	Platinum
1.189	times as heavy as	18% Nickel Silver
1.228	times as heavy as	Brass
1.182	times as heavy as	Bronze
1.425	times as heavy as	Pewter
10K Yellow Gold
0.885	times as heavy as	14K Yellow Gold
0.743	times as heavy as	18K Yellow Gold
1.049	times as heavy as	10K Green Gold
1.045	times as heavy as	10K White Gold
0.539	times as heavy as	Platinum
0.964	times as heavy as	Palladium
1.018	times as heavy as	Lead
1.366	times as heavy as	Brass
1.113	times as heavy as	Sterling Silver
14K Yellow Gold
0.839	times as heavy as	18K Yellow Gold
0.920	times as heavy as	14K Green Gold
1.036	times as heavy as	14K White Gold
1.130	times as heavy as	10K Yellow Gold
0.609	times as heavy as	Platinum
1.089	times as heavy as	Palladium
1.151	times as heavy as	Lead
1.543	times as heavy as	Brass
1.257	times as heavy as	Sterling Silver
18K Yellow Gold
0.980	times as heavy as	18K Green Gold
1.064	times as heavy as	18K White Gold
1.192	times as heavy as	14K Yellow Gold
0.726	times as heavy as	Platinum
1.298	times as heavy as	Palladium
1.371	times as heavy as	Lead
1.839	times as heavy as	Brass
1.498	times as heavy as	Sterling Silver
Platinum
1.788	times as heavy as	Palladium
0.958	times as heavy as	Iridium
0.998	times as heavy as	5% Iridium Platinum
0.996	times as heavy as	10% Iridium Platinum
0.994	times as heavy as	15% Iridium Platinum
1.716	times as heavy as	Rhodium
1.758	times as heavy as	Ruthenium
0.954	times as heavy as	Osmium
2.063	times as heavy as	Sterling Silver

More Information

The specific gravity of a metal or alloy is merely the weight in grams of one cubic centimeter. When it is more convenient to work in troy weights, the number of ounces per cubic inch of any metal or alloy may be found by multiplying its specific gravity by the constant 0.52686. For example, the specific gravity of 14K yellow gold is 13.07. Multiply this by 0.52686 = 6.88606 which is its weight in troy ounces per cubic inch.