Learning Resources Learn To Use A Scale Let's get started using your new digital scale. It's super easy. Authenticate Coins Weigh your coins to check their value and confirm authenticity.Authenticate Coins Value Of Gold Watches You need a digital scale to price your old gold watches. Weigh Diamonds A loose diamond can be extremely valuable. Weigh your stone. Sell Gold Sell gold using a scale and a gold calculator.Sell Gold Using Scale Weigh Silver Flatware The value of silver flatware is to be determined by weight. Weighing Units Confused by grams, ounces, tael, pennyweight and carat? A Magnet Helps It never hurts to own a magnet to authenticate gold and silver. Loupe & Microscope A loupe, a microscope or a magnifying glass will help a lot. More Educational ArticlesHistory of weighing instruments