The eye catchy sparkle and elegant glow of yellow gold diamond ring is what makes them unique and special from other types of diamond rings. The timeless appeal and classic designs of a yellow gold diamond ring have made them one of the most popular diamond engagement ring choices of many brides. The gold alloys used for making these diamond rings are created by mixing zinc, silver, copper, and natural yellow gold. Diamond ring manufacturers often adjust the amount of these ingredients in order to retain the distinct yellow color of yellow gold diamond rings. Yellow gold diamond rings can be classified into three groups such as 10k, 14k, and 18k yellow gold diamond rings. Approximately 75 percent of 18k diamond yellow gold rings are pure gold by weight whereas 14k gold rings only contain 58.3 percent of pure gold. The percent of pure gold by weight in 10k diamond yellow gold rings is around 41.6 percent. The engagement rings that are made of 18k gold are relatively more common and highly expensive among the three. This is mainly due to the natural radiant glow and stunning appeal of these rings. So, if you are on a tight budget, it is best to settle for 10k or 14k gold diamond rings.