Jewellery is made out of almost every material known.There are very expensive designer jewellery to cheaper mass-produced ones. High-quality and artistic pieces are made with gemstones and precious metals . Diamonds are considered the most prized Gemstone.As they say Diamonds are forever. Common Precious Metals used for modern jewellery include gold, or platinum or silver . Gold is traditionally considered as a good investment.
Most gold jewellery is made of an alloy of gold, the purity of which is stated in karats, indicated by a number followed by the letter K Ordinary gold jewellery ranges from 10K (41.7% pure gold) to 22K (91.6% pure gold), while 24K (99.9% pure gold) is considered too soft for jewellery use. Platinum alloys range from 900 (90% pure) to 950 (95.0% pure). The silver used in jewellery is usually sterling silver, or 92.5% fine silver.