For example, if you see a white gold piece marked with the number 750 instead of a karat number, this means that every 1000 units of the alloy contain 750 units of gold. In general, since gold is not cheap, the higher the karat of white gold, the more expensive it is per gram. trivia, research, and writing by becoming a full-time freelance writer. This is the case because white gold is made up of up to 75% pure gold. Forgot to mention that rhodium coating may deteriorate within 12 to 18 months and the jewelry may need to be re-coated! Silver jewelery does not tarnish but changes its color because of the acidity of the person's skin. I don’t want to get another ring because it is very dear to my heart, but my ring never matches the rest of my jewelry. The determination of the number of karats has a lot to do with what type of white … I've been wearing my white gold chain quite a bit and I love it. The additional metals used in white gold are usually palladium, silver, zinc, copper, and nickel. The most common white metals that form the white gold alloy are nickel, palladium, platinum, and manganese. How to Tell a Diamond Simulant from a Real Diamond. Pure gold is much too soft for use in jewelry and can even be dented by simply pressing your fingernail hard against it. However, nickel has fallen out of favor in some jewelry circles because it more commonly causes allergic reactions. My husband is very traditional and picked out gold rings for our wedding date despite my pleas. Depending on the exact makeup of the white gold, this may be barely noticeable to extremely apparent. Platinum – What Jewelers Won’t Tell You. Save my name, email, and website in this browser for the next time I comment. To determine the karat of white gold jewelry, you can either look at its hallmarks or have it tested for purity in case there are no marks. Multiplying a parts-per-thousand number by 0.024 will convert it to its karat equivalent. The presence of some nickel adds strength that is desirable for the creation of rings and other jewelry that is expected to wear gracefully over long periods of time. Perhaps the most popular application for white gold is in the use of jewelry items. This little known plugin reveals the answer. I prefer to wear silver jewelry, but silver tarnishes over time and it is not very appropriate for a wedding set. As far as terminology goes, the 24 karats that make up pure gold translate to all twenty-four parts being gold. The kit will contain bottles with nitric acid with karat labels on them – each label indicates the purity of the alloy that the solution is prepared to identify. The jeweler will most likely use the same method as the one described above to find out the karat of your white gold.