some knowledge about yellow and white gold
There are distinct advantages to both yellow and white gold. Placing a diamond with yellow color in a yellow gold setting can actually make the diamond appear whiter. White gold is a beautiful complement to exceptionally white and brilliant diamonds. Also, white gold jewelry is plated with rhodium, a shiny metal that increases the whiteness and strength of gold. Sometimes, white gold is confused with platinum, though they are entirely different metals. White gold and platinum vary in strength, resistance to scratches and shades of white.Yellow gold and white gold both contain gold. The difference between the two metals is the other alloys that are used with the gold. White gold uses more white metals as alloys. The white metals used in white gold produces the white color of white gold. White gold can be created using different alloys.
There are all kinds of gold.Alloyed gold comes in many colors:
Colored Gold Alloy Metal(s) Added to the Gold
Yellow Gold 50% silver and 50% copper
White Gold Nickel, zinc, copper, tin and manganese
Pink (rose) Gold 90% copper and 10% silver
Green Gold High proportion of silver or cadmium
Blue Gold Some iron
Grey Gold 15-20% iron