How to tell real gold & fake gold
By American standards, fake gold is anything less than 10 Karats. If you're wondering whether your gold is real, the most reliable way to find out is to take it to a certified jeweler and have it tested. If you want to check for yourself, here's a list of tests you can conduct to tell if your gold is real.
1. Inspect the piece for official markings. A stamp will indicate either fineness (1-999 or .1-.999) or karat (10K, 14K, 18K, 22K or 24K). Anything less than 10K is not considered to be real gold. A magnifying glass will make this easier.
18k gold items always come with stamp like G18k, 18k or 750 which tells the gold inclusion properly.
2. Hold a magnet up to the item. Gold is not a magnetic metal, so if it pulls towards, or sticks to the magnet, it’s fake. However, just because it doesn’t react to the magnet doesn’t mean it is real, as non-magnetic metals are used in counterfeit pieces as well.
3. Ceramic Plate Test- This is an easy way to tell if your gold is fool’s gold. Bear in mind that your item may end up scratched. Find an unglazed ceramic plate to use. If you don’t have this, you can purchase a random piece of unglazed ceramic from a home improvement store.Drag your item across the surface. A black streak means your gold is not real, whereas a gold streak indicates your item is genuine.
4. Cleaning & Fixing - Real 18k gold items could be cleaned & polished easily by gold jewelry cleanser or at local jeweler store; while for fake gold items, if it turned color or ripped off, it can't be shiny again. For a 18k gold ring or necklace or even a pendant, if broken, one can have it fixed at jeweler store while a fake ring can't be fixed and can only throw in dustbins.
PearlHours.com offers quality pearls come with precious metal-made accessory, like sterling silver clasp and 18k ring setting. Below is a pearl ring & quality certificate issued by Bureau of Quality and Technical Supervision, it testifying the real gold items from Pearl Hours, which is definitely in 18k solid yellow gold(Pearl Rings collections on PearlHours.com)