South Africa and Russia are often said the largest country of origin of platinum, although the geological conditions are very different from these countries
But Platinum is also found in Japan
Platinum is a naturally occurring white metal. It is rarer than gold, and much heavier and harder.
Because of its hardness, platinum can be used in a purer form than gold.
Usually at about 95% new platinum jewelry is consequently more expensive than new gold jewelry.
Mainly in Hokkaido, from the sand of rivers such as Kitami, Teshio, Ishikari it seems that it was collected by the bowl method.
Platinum powder found diametr is 6mm, heaviness is 0.64g It seems that commercialization for mining was planned for a while.
Sand platinum has been found not only in Hokkaido also found in Niigata prefecture.
The most common platinum alloy isplatinum 900 (Pt900) typical alloy of 90% platinum with it is added alloy10% palladium.
Platinum is softer than gold because it is easy to design most of the rings, brooches are made of platinum 900.
Merit of platinum
Platinum is one of the rarest and most durable precious metals.
Platinum's rich, white luster enhances the brillianceand will maintain its shining luminosity forever,unlike other white metals which can, in time,turn yellow or tarnish.
The amount of mining is about 1/20 a year of that of gold ,it is a highly rare precious metal.
Platinum is not white gold !
Not everybody knows it, but white gold doesn’t exist naturally.
It’s made from yellow gold mixed with white metal alloys like palladium or silver.
Afterwards, it’s given a beautiful coating with a rare, silvery-white metal called rhodium.
This final rhodium finish gives white gold its luminous sheen.
Used platinum jewelry you can buy cheaply on our Rakuten online shop
【USED-A】Pt900 Yellew diamond ring 0.47ct, 0.72ct , size14, 8.6gram
【USED-A】Pt900 Diamond necklace 0.57ct 45cm 18gram
【USED-B】Pt850 curb chain 2 side cut bracelet 21cm 77gram
【USED-AB】Pt900 diamond ring 0.221ct size 12.5 about 10.8gram
【USED-B】Diamond 0.5 ct platinum & gold combination ring
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