There are many places to sell diamonds. Online there are sites that can be used such as WP Diamonds, Sell My Diamonds and Cash for Diamonds. Local antique dealers may offer cash for diamonds, if this is preferred, rather than sending them in the post.
IT will be worth less. but it depends who you are selling it too if your selling it to some one who will wear sell with diamonds if not take diamonds out and sell those separately
Though you do not need a license to specifically sell diamonds you do need a jewelers license to sell diamonds. If you want to sell diamonds it will require you to fill out applications for a jewelers license once you have completed that you are eligible to sell diamonds.
Beverbrook jewelers only sell cut diamonds at this time. In fact, they don't even sell separate stones anymore, only diamonds that have been set in jewelry.
Terrorists, war lords, and criminals all sell conflict diamonds.
You can sell diamonds to any local pawn shop ( won't be a great price), or try a jewelry store.
All items fluctuate in price. No one can give a definite answer.
Those interested in synthetic or manufactured diamonds can find more information on the How Stuff Works or Wikipedia website. Diamond Nexus and the Shane Company sell a variety of manufactured diamonds.
ToysRus
Most jewelery stores in most cities in Europe sell diamonds.
Your answer depends on where you want to sell diamonds and gold, and to whom you want to sell these materials. Your local city, county or state business licensing authority can answer your question.
Jewlers like texasdiamondandjewelry.com offer to buy and sell diamonds, although there are several more places that do either buying or selling.
Andrews Jewelers sells specific products at their locations. One product that they sell is diamonds in the form of necklaces and rings. This is what Andrews Jewelers sells.