Platinum is resistant to corrosion. Platinum possesses remarkable resistance to chemical attack,excellent high –temperature characteristics and stable electrical properties.
History of platinum
Though platinum was used by pre – Colombian Native Americans, the first reference to platinum appears in 1557. The modern platinum jewelry tradition began with the European court jewellers of the 18th century and developed with the great jewelers of the Edwardian and Art Deco periods such as Cartier and Tiffany. With the economic depression of the 1930s and the advent of Second World War, platinum became a controlled material, its use of jewellery declined. Platinum demand restarted and gained special status in Japan in 1960s, 1970s in Germany, 1980s in Italy and later on in Switzerland, UK and now in U.S.A and China.Platinum is a naturally white precious metal. It is the most precious metal on earth. It is 30 times rarer than gold. It never tarnishes or loses its colour. Platinum loses very little metal to daily wear and tear, the metal simply gets displaced when a piece of platinum is scratched. Platinum costs roughly three fold of gold price. It is expensive because it is 95% pure whereas white gold is only 75% pure and also because it is very rare, very hard and requires considerable skill to craft into jewellery.
Platinum Guild International (P G I)
stands for platinum guild international. They are a non-profit multinational organization that promotes platinum jewellery.
- As a catalyst in the catalytic converte.
- Certain platinum containing compounds are capable of cross-linking with DNA and are chemotherapeutic agents owing to this capability.
- Electrodes for use in electrolysis And for jewellery making.
The jewellery store should be authorized by the Platinum Guild International to sell Platinum jewellery. Every piece of jewellery is stamped with the Pt logo and a unique identification number (UIN). A quality assurance card also accompanies the piece.