Blue Nile Gold We carry jewelry that’s crafted in both 18k and 14k gold. Our 18k gold is an alloy of 75% gold with other metals to make it strong enough for everyday wear, and our 14k gold is an alloy of 58.3% gold and other metals. The minimum karat that is allowed to be sold as gold jewelry in the U.S. is 10k—an alloy of 41.7% ทองคำบริสุทธิ์. If you’re one of our European customers, you may be accustomed to a different gold karat scale. 585 is equivalent to our 14k gold, ในขณะที่ 750 is the same as our 18k gold.
The Color Of Gold Although it’s true that the color of pure gold is yellow, gold jewelry or objects are almost always alloys. The metal they are alloyed with changes their color to a variety of shades depending on:
The type of metal alloys included The percentage of each metal alloy The metals used to alloy gold, which include: สังกะสี, ทองแดง, นิกเกิล, เหล็ก, แคดเมียม, อลูมิเนียม, เงิน, platinum and palladium Our fine jewelry comes in 3 สี: ทองคำ, ทองคำขาวและกุหลาบทองคำ.