If you are a hobbyist, I recommend that you visit this store. You'll not get dissapointed with their products.
201 Spear StSan Francisco, CA 94105
From Business: We buy diamonds, gold jewelry, gold and silver in any form, coins and many other items. We buy US/Chinese/Russian/Foreign Coins/Collectibles.
1300 Clay StOakland, CA 94612
From Business: Buying Gold, Diamonds, Silver, Platinum, Jewelry and Stamps. Buying US/Chinese/Russian Coins and Collectibles Buying US Foreign Coins/Currency/Stamps