A Word precious metal refers to metals valued in jewelry. Gold, Platinum, and Silver are precious three noble metals used in jewelry. Jewelry metals come in warm and cool colors One of the first things that we admire about precious metals is the way they reflect the light. Glitter of gems and metals in reflected light is called luster. . Beauty of jewelry items surface has a lot to do with how well it reflects the light. All these three metals have a quality of being hammered or rolled in to sheets without breaking called Malleable. All three precious metals are also ductile meaning that they can be formed in any shape.

    Gold: Gold is the most popular metal in jewelry due to its warm yellow color .It possess beautiful luster. Out of three precious metals, Gold is the most malleable and ductile

    Silver: Polished pure silver shines more brightly than any other metal on earth. It reflects more than 90 % of the visible light back to eyes. Silver Jewelry can be an affordable alternative for customer who likes white metal look

    Platinum: Platinum is the heaviest metal and posses beautiful luster. You can easily experience the weight and substantial feel of platinum jewelery. Over time, polished platinum’s luster can grow softer and richer and archive subtle glow called “patina”

    Alloy is mixture of two or more metals. Over the centuries, people have found that silver work better in jewelry than precious metal alone. In their pure for, Gold, Platinum and silver shows very narrow range of color but people learned to mix these metals with other metals to create exciting colors.

    Gold Alloy: Pure gold is melted with other metals to form karat gold alloys. Karat gold has different properties than pure gold In US no alloy with gold content lower than 10 K can be sold as Karat gold. Jewelry containing less than 41.7 % of gold can not be sold ad gold Jewelry

“Ingredients of typical gold “
14 K Yellow: Gold, Copper, Silver, and Zink
14 K Yellow: Gold, Copper, Silver, and Zink
Green: Gold, Copper, Silver (Amount of silver increased) and Zink
Rose (Pink): Gold, Copper, Silver (Amount of copper increased), and Zink
White: Gold, palladium Copper, Zink

Karats And Their Equivalents

Carat gold only	10K	14K	18K	24K
% OF PRECIOUS METAL	41.7%	58.3%	75%	100%
Parts per thousand	417	583	750	1000
Variable equivalent	10 parts Gold, 14 parts other metal	14 parts Gold, 10 parts other metal	18 parts Gold, 6 parts other metal	24 parts Gold, No other metal metal
Pictorial equivalent

    Platinum Alloy: Discovery of the other platinum group metal (Iridium, osmium, palladium, rhodium, and ruthenium) played a big part in the development of platinum jewelry manufacturing techniques. Mixing of platinum with different member of its groups creates new alloys that can be harder than platinum alone.

    Silver Alloy: In order to bear the name “ Silver” in United States of America Silver alloys must contain at least 92.5 % pure silver. Sterling silver it self is a most popular alloy in the world
Sterling Silver-: 92.5 % Silver and 7.5 % copper
Coin Silver -: 90 % pure Silver and 10 % Copper