Gold's purity is measured in karats. 24 karat is pure gold, but its purity means it is more expensive and less durable than gold that is alloyed with other metals. When comparing gold jewellery, the higher the number of karats, the greater the value. Different alloys are used in jewellery for greater strength, durability and color range. The karatage of the jewellery will tell you, what percentage of gold it contains. 24 karat is 100 percent, 18 karat is 75 percent, and 14 karat is 58 percent gold.

Silver is one of the first metals to be used by humans. The art of silver working dates back to the ancient Byzantine, Phoenician and Egyptian empires, where silver was forged into domestic utensils, jewellery, buttons, weapons, horse trappings, boxes, and other articles. Infact, it may have been the first metal smelted from ore.

Platinum is add the only precious metal used in fine jewelry that is 90% to 95% pure, largely hypoallergenic, and tarnish-resistant. Today, it is often alloyed with copper and titanium. While purchasing platinum jewellery, look for platinum jewelry marked 900Pt, 950 Plat, or Plat. Platinum, like gold, has a long and distinguished history. Its use began in antiquity and it has undergone resurgence in popularity over the last 200 years.