10k refers to 10 karats of gold, likely the cheapest gold alloy used in jewellery. It includes the least amount of gold, consequently appearing as pale yellow in colour. There's no distinction involving the markings S925 and 925; both equally designate the product of jewelry is made from sterling silver https://israelktbud.designertoblog.com/68088753/the-smart-trick-of-jp88-that-nobody-is-discussing