Gold coins can be purchased online from the US mint, as well as potentially less reputable sources such as BullionByPost and USAGold. However these latter sites will come with some risk.
You can purchase certified gold coins online from the SIlverTowne website. You can also purchase certified gold coins online from the JM Bullion website.
There are several websites where an individual can purchase bullion gold coins. Examples would include Gold Line, US Gold Bureau, Golden Eagle Coin, and Monex.
You can purchase buffalo gold coins on and local or online coin collector. Many coin collectors carry these and are willing to sell them at a fair price.
purchase the gold from the store......
No - unless you are a gold coin collector, in which case you would need to have a lot of money to even purchase one, it isn't a smart idea. Gold coins aren't common currency these days.
The Royal Canadian Mint's website, Ebay and coin shops.
You can buy the modern commemorative gold coins straight from the United States Mint. They have many different types and brands for different prices depending on what you are looking for.
Unless the gold coins are solid gold and the silver coins are solid silver, it is probably worth less than the purchase price.
Cash For Gold Co will purchase scrap gold online. They offer competitive prices as well. Another site which can be used is the Gold Silver dot com website, which will purchase gold in various forms such as gold bars and coins as well as jewelery.
You can find Indian Head gold coins in museum collections and available for sale on collectors websites such as the indianheadgoldcoin website. Alternatively you could purchase it from the providentmaterials website.
You can purchase MS70 gold coins from Blanchard and Company, eBay, Mew York Mint and local coin shops which can be found in your local Yellow Pages with attached coupons.
American gold eagle coins can be purchased from all good auction companies, as well as the official US mint. Alternatively, try webpage stores such as Ebay.