• While 999 means that your gold is 99.90% pure and only 0.1% is other metal, 999.9 means your gold is 99.99% pure, i.e. only 0.01% is other metal. • In case of
999 Gold refers to the purest form of gold (24K), with a gold content of 99.9% that is not mixed with any other metal.
916—This means that the gold is 91.6% pure, or 22K. This is probably the softest and most pure gold you would want to have for a piece of jewelry. 999—This means the gold is 99.9% pure, or 24K.
995 indicates 995 parts of gold and five parts of another metal. 999.99 or five nines fine, is the highest quality of fine gold. 22 carat gold, that is typically used in making jewellery, has a fineness of 916.
Gold fineness
In this system, 999.9 is pure gold, equivalent to 24 carat as mentioned above.
24 Parts Gold — 100% Gold This is the highest karat, and most pure form of gold jewelry. 24k gold is all parts gold without traces of other metals.
The types of gold are (according to the Karat) –
24k being the most pure but the most delicate. 22k – slightly lesser purity but more durable than 24k. 18k – 75% pure comparatively more durable than the above types. 14k – 58% pure as an average value but way more durable than the 18k.
Though 24-carat gold is the softest of all gold carats, it is still the most expensive gold available for purchase. 24-carat gold is defined as 100 percent pure. 18-carat gold is considered 75 percent pure because only 18 of its 24 parts are gold.
22k gold is more durable for making jewellery because of the presence of other metals, which makes jewellery more durable. 24k gold is brilliant in color but won't be durable for making jewellery. It is too soft to resist wear and tear.
Most commonly, fine gold is 999. This is the gold most commonly referred to as 24 karat gold, although technically 24 karat gold is 100% pure. However, as this is difficult to achieve outside of a lab environment, 999 gold is generally considered close enough.
Gold and gold alloys are measured by the percentage of pure gold per other elements. The purest gold is 24k, which has 24 out of 24 parts gold with no other metals present. The next purest gold is 18k, which has 18 out of 24 parts gold, and 14k and 10k follow the same standards.
Yes, 9K gold can tarnish. However it doesn't tarnish as obviously as sterling silver can. Wiping with a jewelry polishing cloth will help remove the tarnish and brings back the color. You will likely notice tarnish more on 9K rose gold (due to the higher copper content) and less on white gold.
Genuine gold will make a resounding ping sound when it comes in contact with another metal. All you need to do is click the gold together with a piece of clean metal and observe the sound. If it's a ping, you have the real thing. If it's a thud, the bar is likely filled with any range of metals other than gold.
Take a cup or glass, fill it up with water, now bring the gold that you want to test. Drop it into this filled glass. If the gold floats, it is surely not real but if the gold sinks to the end of the glass then it is pure gold. The real gold will sink due to being a heavy metal.
If you have a gold piece with a 925 mark, it's most likely sterling silver underneath gold plating. You'll normally see this kind of stamp on a gold vermeil (pronounced as "ver-may"), meaning that it's sterling silver that has gold plating.
Platinum is almost always more valuable than gold. It's a rarer metal, and platinum rings have higher densities and purities than gold rings. You also need more platinum to make a ring, so they often cost 40-50% more than gold.
White gold is slightly more expensive than yellow gold, and there are a couple of reasons for the difference. The plating that covers the piece is an added cost that makes it more durable while also making it look flawless. You need to recoat the plating every few years, which is an added expense of white gold.
Yellow gold is described as such because of its yellow colour which is a result of it being alloyed with silver and copper.
Compared to 18K gold, the main advantages of 14K gold are its durability and affordability. Rings and other jewelry made using 14K gold are significantly more durable than those made with 18k gold, making this type of gold a good choice if you're concerned about scuffs and scratches.
To convert karats into the per centage, you need to divide the karat number by 24 and multiply the result by 100. So, for example, to find out the gold per centage in your 22 karat ring, divide 22 by 24, the result is 0.9166, multiply it with 100, so it equals to 91.66 per cent - that's the purity of your gold.
Any ornament or coin with '916 Gold' means that it is made of 91.6% pure gold, and the remaining is other metals. In other words, 916 is the finest of gold jewellery. Also, 916 gold has a proportion of 91.6 gms pure gold in 100 grams of alloy (22k/24k = 91.6%). It is the purest form of gold for any alloy making.
If a gold product contains the hallmark '375', that means your gold is 9 karat – or 37.5 per cent pure. The remaining 62.5 per cent of the product is an alloy of different metals, like nickel, copper, or in some cases silver.
It is also safe for those with metal allergies. Gold-filled is much more expensive than gold plated material and will last longer; however, it does have a life span of about 10 to 30 years, unlike pure gold pieces which will last forever.
14K gold is less durable in comparison – it contains more gold, which is actually a very soft metal. For that reason, 14-karat gold chains scratch more easily and wear down faster than 10-karat ones.It should be noted, however, that 14K gold is still pretty durable compared with 18K or 20K gold.