Month: February 2018

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The numbered lists of precious gold jewelry are a bit confused for a lot of people. We are generally used to seeing karat or silver badges like this: 10K, 14K, 18K, Sterling, etc. The numbers mean the same.

The 14k code is technical 583 but most manufacturers approved the European way and make 14k gold slightly more than 14k, so the mark is 585 in most 14k jewelry. 18K is marked 750. If the mark is valid and it is a sign of marking also in jewelry means the number of these items 18k gold.

Here's where the numbers come from. Pure gold is called 24 karat. For 18k gold, 18 parts of pure gold are blended with other metals to make the case suitable for use in jewelry. 24k is too soft one to stand up or keep stones well. 18 parts of pure gold divided by 24, or 18/24 equivalent to 750. That's where the number comes from. The jewelry is 75% pure gold, 750 parts gold with 250 parts of other metals from "1000" parts. It is easier to think of it as a percentage of pure gold in the recipe.

Sterling silver is marked 925. Sterling is 92.5% pure silver and the remainder is another metal, usually copper.
What does it mean if the ring marked 14K PR? 14K simply means that it's 14k (karat) gold and because K means it would have been done in either South East Asia or the United States. The PR tags are just manufacturer or store identifiers or even design tags and are not meaningful.

The basic icon for the quality of gold content is quite simple, as they are all measured in "Parts per thousand." & # 39; This means that 9kt gold is calculated as follows: 9 (for 9ct) is divided by pure gold (24) and then multiplied by 1000 (for pure gold as a decimal fraction). ie: 9/24 * 1000 = 375 This 375 is the decimal quality for 9kt gold and is sometimes shown with a comma in front. – .375

Old Victorian standard 15kt gold is calculated in the same way – 15 / 24 * 1000 = 625 (Not exactly the numbers you have on your jewelery. Decimal and working again., Ie: 375/1000 * 24 = 9

In your case we can use 698/1000 * 24 = almost 17ct
I have a platinum engagement ring and found a wedding ring that I like very well but the band is made of palladium. Is it safe to be these two metals without damaging others?

It will wear soft metal over time, but it may take many years. My Mormon Wedding always wore in the band, but it took over 20 years to do.

Platinum and Palladium and pretty good but I would assume your local friendly jeweler and have them check both circles. Sometimes, the Platinum must be a lower grade to make it harder – so check it out.

Source by Victor Epand