No, you cannot turn yellow gold into white gold. White gold, yellow gold, and rose gold are all alloys of pure gold. You can only turn pure gold into white gold.
Rose gold is used purely for its pleasant appearance & has no less or greater qualities than normal yellow gold.
Rose gold is better and could be expensive because it is rare but its only a mixture of yellow gold and copper. but the color could go bad if any perfumes or cremes are accidentally put on it. Yellow gold (pure gold) is more expensive than an alloyed gold.
The worth if rose gold is measured by the amount of gold that is actually in the piece. That is determined by the Karat. Rose gold and yellow gold usually go for around the same price, depending on how many Karats it is.
Rose gold is used purely for its pleasant appearance & has no less or greater qualities than normal yellow gold.
Rose gold is made up of 75% gold, 22.25% copper and 2.75% silver. The only difference between rose gold and yellow gold is the difference in colour. Due to this fact, the properties of rose gold are similar to yellow gold. That is, - it is a soft metal - good conductor of electricity - man made using other metals - quite decorative due to its colour
no, the colour of gold depends of the alloy in it. you can plate it but it will not last very long.
It can be more collectable, but not necessarily more expensive, in antique jewellery.
because their is gold in it and it could grow larger
The reason the white gold is starting to turn yellow is probably because the jewelry is made of yellow gold but was dipped in white gold. You can fix this by having it re-dipped.
probably contains silver
By changing the mixture of metals, different colors are created. Rose gold has a higher copper content, white gold has more nickel, and alloying the gold with silver will create green gold.