14k white gold and yellow popular and durable precious metal for jewelry. Pure gold, which measures 24 karats, is too soft for use in jewelry. It is alloyed with other metals - silver, copper, nickel, and zinc - to improve strength and endurance.
14k white gold is not white like platinum, as it is made of yellow metal white mostly through nickel alloys. Most white gold items that have a thin coating of rhodium over time, so the metal will probably look more yellow with age. Some people prefer a slightly warmer white of white gold over platinum gray and white.
18k White and Yellow Gold Because of recent advances in alloy technology, 18k gold is now generally regarded as durable as 14k gold. Because 18k gold has a higher percentage of pure gold, it has a richer gold color than 14k gold and a little heavier. 18k gold setting can cost about 25% to 65% over the same setting in 14k gold.
Platinum
Platinum has great durability in holding a precious stone. This is 35 times rarer than gold. Platinum jewelry items can cost about 60% to 200% over the same setting in 18k gold, and 100% to 300% over the same setting in 14k gold.
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