GOLD
ذهب has been used for عملات معدنية, jewellery and decoration لآلاف السنين. Gold is prized for its ندرة, جمال, المتانه و unique qualities that enable the jeweller to craft it into almost any form desired. وذلك لتنويع لونه وزيادة صلابته, غالبًا ما يكون الذهب مخلوطًا بمعادن أخرى. The purity of gold jewellery is expressed in karats, which is a measure of gold content or percentage. Gold jewellery is “hallmarked” to indicate the content of gold, أي: 10ك, 14ك, 18ك, 19, or 24k, 24ك كون ذهب نقي.
PLATINUM
Of all the precious metals, البلاتين is the most rare and the most valuable. Denser than gold, it is inert and thus very resistant to corrosion. البلاتين يكون very strong, yet is soft and easy to carve. Platinum settings for gemstones last for years and years. Most platinum jewellery is alloyed with 5% of other metals, giving it a standard hallmark of 950.
SILVER
الفضة النقية has an exceptionally ساطع, silver-white colour that readily tarnishes upon exposure to air. Too soft to be used in jewellery in its pure form, silver is alloyed, usually to 7.5% with other metals , giving it the characteristic hallmark of 925, أو "الجنيه الاسترليني" فضي. Less rare than gold or platinum, فضي is an affordable and beautiful choice for jewellery. Most fine silver jewellery is plated with rhodium, a bright white metal, in order to make the silver jewellery more tarnish resistant.
RHODIUM AND PALLADIUM
Hard white metals from the platinum group of the elements, rhodium and palladium are used in jewellery making to make white gold whiter و plate silver and white gold jewellery.