You can cut out all middlemen and sell directly to a refiner. Here's who you should send your gold to;
Midwest Refineries in Michigan will pay 95% of spot for gold, 90% spot for silver. Stay away from those commercials! You'll be real lucky to get 60%.
Figure out how much you have first by weighing your gold to the hundredth of an oz on a digital scale. Remove all gemstones. You get nothing for them. Once you have your weight in TROY ounces (31.1 grams in a troy ounce) all you need is todays spot price and some easy math to be a more informed seller.
10k = 10/24 = .416 pure
14k = 14/24 = .583 pure
18k = 18/24 = .75 pure
So, if today's spot price is $1430 (spot is 24k or .999 pure) and you have say 1.35 ounces of 14k gold, you must first determine spot of 14k. $1430 x .583 (14k purity) = $833.69 Then simply multiply this 14k spot by the number of ozs like: $833.69 x 1.35 = $1,125.48
$1125.48 is the full melt value. The refiner listed above will give you $1125.48 x .95 =
$1,069.21. They will mail you a check, wire the funds, OR give you an equal amount of gold in a refined and assayed pure bar or coin.
Or I'll be happy to give you 70% for same day service ;-)