Gold has been the metal of choice since the dawn of time. It was treasured by the Egyptians, the Persians, Greeks, Romans and Spaniards and treasure hunters for centuries. It has also been the proof of true love and the strength of your government.
Different regions of the world look at gold quite differently, most Eastern Cultures consider anything under 22 karat gold as fake or tourist gold. Most of these cultures consider 18 k gold as a poor substitute for real gold.
However here in the Western World the 2 predominate percentages of gold are 10 k and 14 k these percentages are much lower and much stronger meaning the jewelry is not easily damaged when you bang it up against something. Next up the percentages of gold or karat.
24k is supposed to be 100% only bars or certain coins Canadian Maple Leafs or American Buffalos these coins are usually just .9995 or .999 pure
23k Baht Gold 95.83 % usually Vietnamese or Thai Gold
22k 91.66% The standard for Eastern Jewelry also most Gold Coins Krugerands, American Eagles, etc.
21k 87.49% Saudi or Jordon Gold jewelry is often 21k
18k 75.00% Upper quality gold for Western jewelry
16k 66.24% Normal percentage for American Dental gold
14k 58.50% American standard for jewelry sold in United States
10k 41.70% The lowest percentage of gold allowed in US jewelry sold as solid gold jewelry