Cadmium is used as the ‘solder’ with a ratio of 92 per cent gold and 8 per cent cadmium. This cadmium-soldered gold jewellery was known as KDM gold or jewellery. However, the Bureau of Indian Standards has banned these gold from circulation as it is proven to be hazardous to health of artisans working with it.

What is the difference between 916 and 24K gold?

There is no difference. They are the same. The 916 gold has a proportion of 91.6 grams pure 24 karat gold in 100 grams of alloy (22/24 in percentage is 91.6%) and hence, called 22 karat. The purest gold is 24K but it is too soft to make jewellery.

What is 23 KDM gold?

958 KDM term is used to describe the purity of gold in gold coins, ornaments etc. 23 Carat gold or 958 KDM is 95.8% pure form of gold (24 Carat) calculated by dividing 23 Carat / 24 carat.

How many types of Hallmark are there in gold?

Gold is categorised based on its purity and 24 Karat, 23 Karat, 22 Karat, 18 Karat, 14 Karat, 10 Karat, etc., are the different types of gold purity levels available. 22 Karat hallmarked gold is referred to as ‘BIS 916’ Gold, the number 916 denoting the purity of gold in the final product.

What does it mean when gold is 916% pure?

So what does 916 gold mean? When you talk about 916 gold that means it is 91.6% pure gold. This kind of gold is mixed with cadmium for strength and durability. In carats, 916 gold is equivalent to 22 CT.

What does 916 mean in art of gold jewellery?

This is quite simple, 916 represents the finesse of gold jewellery – 91.6 gms of gold per 100 gms. The figure 916 denotes 22 carat (22 ÷ 24 = 916). And if you are wondering why not make jewels in pure gold, pure gold is too soft to be made into wearable jewellery.

What’s the difference between 22k gold and 916 gold?

916 gold and 920 gold are the same as 22 karat (22K) gold. 920 is obtained by rounding up 916 to the next zero. Thus it is said that 22K gold is 92% pure. Grading based in part per one thousand (PPM) is typically used for jewelry destined for the European and Asian markets.

What’s the difference between KDM gold and bis 916?

916: 916 also called as 22K gold which means 91.6 grams of gold have been in 100 grams of alloy. KDM jewellery: KDM jewellery is gold alloy where cadmium is used as a solder or filler with a ratio of 92% gold and 8% cadmium. Now it is banned by BIS and advanced solders such as Zinc and copper have been introduced. Q9.