A hallmark is a small identification symbol that is stamped on the jewelry, indicating the level of purity of the metal. Some common platinum hallmarks are: 950 Plat or 950 Pt. – The metal is at least 95% pure platinum and 5% alloy metals. 900 – 90% platinum purity and 10% alloy metals. 850 Plat or 850 Pt. 10K white gold is an alloy of 41.7% gold and other metals such as silver, zinc and palladium. A ring or other piece of jewelry made out of 10K white gold will usually contain as much as 47.4% silver, 10% palladium and 0.9% zinc, meaning less than half of the metal is pure gold.

Jewelry Pawn Shop Value Estimator. If you are planning to pawn jewellery, but unsure what you may be offered as prices can vary greatly, using the estimator will give you a 95% accurate of the loan amount a typical pawn shop will offer you. All you need is a metal type, purity and weight, as well as stone size.

While Tiffany jewelry makes a great accessory it also holds value. Here’s why. Tiffany Jewelry resale value is higher than average for many reasons pertaining to the reputation of the company and the quality with which they make their pieces. Let’s take a closer look at the Tiffany Jewelry brand, why it resells for more money than average Taking today’s price of platinum of $965.00 per ounce, this yields: 965 + 18 / 31.1 = $31.60 per gram. (Why +18 and divide by 31.1? 18 is the amount of estimated loss of platinum when the metal is refined into jewelry, and 31.1 is the number of grams per ounce). Keep in mind that rarely should platinum jewelry’s value or price be determined
The popularity of onyx has led to some misuse of the term. The most common example of this is so-called "Mexican onyx," "limestone onyx," or "onyx marble." This material is actually a type of banded calcite found in limestone caves. Calcite is a distinct gem species, not a variety of chalcedony quartz.
Palladium is quickly becoming more popular in the jewelry industry and increasing in value. It closely resembles platinum and has emerged as an affordable alternative. It is lighter in weight and more scratch-resistant than other precious metals. Unfortunately, it is difficult to resize due to its rarity. Choosing palladium has advantages and disadvantages, as does any other metal. It's DU8LW.
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    • how much is a platinum necklace worth