Gold Purity and Color
We are often asked, "What does Karat mean?" or "What is Gold Purity"? We hope to answer those questions and a whole lot more.
Gold is a noble metal prized since ancient times for its beauty and purity. It has a unique shine all its own and it does not rust, tarnish or corrode like most other metals.
Pure gold, known as 24-karat gold, is 100% gold. Unfortunately, it is too soft for fine jewelry. So, in order to make jewelry, pure gold is mixed with other metals, usually silver, copper, zinc, nickel or palladium (for white gold), to make it more durable and practical for everyday wear.
The fineness of gold is based on the purity level and the unit of purity is measured in karats. A karat (abbreviated as k or K) is a unit from 1 to 24 that indicates the pure gold content of a piece of jewelry. Below is the minimum percentage of pure gold for each of the common karat weights and hallmarks that can be found on each item indicating the gold fineness.
24 Karats - 100% pure gold (24 parts out of 24), metal stamp - 24k
18 Karats – 75.0% pure gold (18 parts out of 24), metal stamp – 18k or 750
14 Karats – 58.3% pure gold (14 parts out of 24), metal stamp – 14k, 583 or 585
10 Karats – 41.7% pure gold (10 parts out of 24), metal stamp – 10k or 417
White gold is alloyed with other metals that are white in nature but is brittle and usually requires a rhodium plated finish to give it strength and a bright white appearance. Although rhodium is an extremely hard element, it may wear off over time and need to be re-plated, which is a simple process. So, buyers should not be scared off by a piece of jewelry that is rhodium plated.
Rose gold is created by using large amounts of a copper alloy, which by nature will patina over time. The gold and metal alloy ratio is the same as the other gold colors, there is just a different mixture used to create the pink hue.
How to Care for your Gold Jewelry
Gold is a natural element, which is affected by harsh chemicals such as bleach, chlorine or other cleaning products. For the best results, polish gold items with a jewelry polishing cloth. A solution of warm water and detergent-free soap with a soft-bristled brush will work also.
Store your gold jewelry in soft cloth bags or the original box to protect them from the elements and other jewelry that may scratch them. Ultrasonic cleaners may be used to clean unadorned gold jewelry, but extreme caution should be used when it is set with gemstones. See our gemstone care article for more information.
Where to Buy
The Black Bow Jewelry Company has thousands of items crafted in 10K, 14K and 18K gold. We have been selling fine jewelry for over 30 years and been on-line since 2008. Visit our site www.theblackbow.com to view our entire collection.
