Amethyst Gold Cufflinks
Double element cufflinks in 18-carat yellow gold with half spheres composed of mother-of-pearl and amethyst.
18 Karat Yellow Gold
18k (75%) gold is the purest form of gold used for jewelry (pure 100% gold is 24 karats by definition). 18k means that 18 out of the 24 parts that make up the gold are pure gold. The most common hallmark stamps for 18 karat gold are 18K or 750 that indicate 75% gold purity. 18k yellow gold is an alloy made up of 75% pure gold and 25% alloy (12.5% copper, 12.5% silver).
Amethyst
Amethyst is the purple variety of the quartz mineral species. It ranges in color from clear purple to bluish violet. Amethyst is February's birthstone and is said to bring the wearer luck, constancy and protect against magic. Amethyst rates 7 on the Mohs hardness scale making it an excellent gemstone for everyday wear.