italian gold plated jewelry wholesale What is the difference between I have heard of sufficient gold and thousands of gold before? Which is more collectible?
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wholesale beads jewelry Platinum: Platinum (PT), which is more stable than gold, and the price is more expensive than gold. It is used to make high -end jewelry. The "PT900" or "PT950" seen on the products of jewelry stores represents the content of platinum in the jewelry of 90 % and 95 %, respectively.
Platinum: a mixture containing gold (AU) and other small amounts of other metals.
The maximum purity of platinum on the market is 75%. It is mixed with 75 % gold plus 25 % silver, nickel, copper and other metals, which is white K gold. Bidding 18K Platinum, 750 Platinum, 750G, etc.
How to identify the difference between platinum and platinum
In the inner circle, the necklace is marked at the buckle. Platinum jewelery of more than 990 ‰ of platinum is generally a "foot platinum" mark. The "P950" mark indicates a platinum with a color of 950 ‰. The white K gold is required to indicate the KK number. K means the gold content, such as 18K white, 750g, 750 gold, and AU750. The purity of platinum jewelry is not expressed as "K". The white K gold and K platinum jewelry sold on the market are not platinum jewelry. When buying platinum jewelry, you should ask the operator to issue an invoice. Write whether it is platinum or white 18K gold in the invoice. It is best to indicate the weight of the jewelry, so that it is easier to claim when the fraud occurs.
Gold jewelry refers to jewelry made with gold as the main raw material. The chemical symbol of gold is AU, with a gravity of 17.4 and Mo's hardness is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold in terms of gold content. The gold content of pure gold jewelry is more than 99%, and it can reach up to 99.99%. K gold jewelry is a jewelry made of other metals (such as silver, copper metal) to its golden materials, also known as "opening gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed. The size and gold content of the K number are as follows:
24K, 99%or more; 22K, 91.7%; 21K, 87.5%; 18K, 75%; 14K, 58.5%; 12K, 50%; 10K, 41.66% ; 9K, 37.5% 8K, 33.34% 6K, 25%
Thousands of gold: The gold content is not less than 999. The mark is thousands of gold, 999 gold, GOLD999 or G999.
wholesale jewelry trading companies What are the varieties of gold? How to correctly distinguish the type of gold, see if you understand
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