Yes, white gold is expensive than yellow gold. As yellow gold is made by combining pure gold with alloy metals such as copper and zinc which is cheaper than silver and palladium. White gold
is an alloy of gold and some white metals such as silver and palladium.

Diamonds are used for variety of purposes as a form to jewelry to enhance the beauty of the wearer also in diamond cutting tools for cutting other diamonds.

Emerald is a rare and valuable gemstone which is green color. The streak of an emerald is white.

Now-a-Days jewelry has become a style statement. It enhances the looks of the wearer and symbolizes love, delight and fashion sense.

Gold tone Jewelry refers to the jewelry which is coated with gold color but has no gold content. Gold tone jewelry is also known as gold plated jewelry, gold tone jewelry is a   cost effective substitute to actual gold.