Gold has a remarkable heritage with extraordinary quality. For centuries, gold has symbolised wealth, sophistication and reverence. It is highly malleable and well suited to the delicate manipulation of jewellery manufacturing, but this softness also places limitations on its durability. Therefore, gold is often alloyed to increase its strength, and in the meanwhile, bring delightful tones of white, yellow or rose. The alloy ratio would also determine the gold’s purity, or karat weight.
99.99% or 24 Karat Gold – Mostly used for traditional gold ornaments, but too soft for jewellery mounting
75.0% or 18 Karat Gold – Regarded the best choice for fine jewellery due to its high strength for everyday wear (niin mostly uses this option, recycled)
White Gold – The silvery white appearance enhances the brilliance of jewellery , making white gold the most popular one in gold alloys. Pure gold is mixed with white metal alloys, then plated with rhodium which may wear away over time notwithstanding its hardness.
Yellow Gold – Natural gold and color-saturated alloys combined to achieve a warm hue. The most commonly used alloys are copper with a red hue and silver featuring a green hue.
Rose Gold – An expert mixture of pure gold, copper and silver gives its signature pink hue. Rose gold has become a prevalent gold alloy nowadays.
Pure Silver is relatively soft, very malleable, and easily damaged. Therefore it is commonly alloyed to become a more durable product.
Sterling silver is the most popular silver alloy among all, usually in the ratio of 92.5% silver to 7.5% copper (sometimes zinc or nickel). (niin uses Nickel- free and mostly recycled 925 silver ) Gold Vermeil - The industry standard definition of vermeil is sterling silver that is plated with 10k gold with a minimum of 2.5 microns in thickness for longwearing durability.