White gold's purity is measured in karats and alloyed with PALLADIUM. White gold is more expensive, more dureable and has more hardness then yellow gold.

When buying white gold jewellery, always look for the karat mark. Always look for the karat mark or "k" that appears on the back of the piece. In addition to the karat mark, every piece of gold jewellery should be stamped with a hallmark or trademark of its maker, and sometimes its country of origin. These designations assure you that you are buying genuine karat gold jewellery. Heavier pieces contain more gold.

White Gold pricing is based on a number of factors, including karatage, gram weight, design and craftsmanship. The karatage and gram weight tell you how much gold is in a piece, but don't rely on these alone to determine price. Remember, a price based solely on gram weight does not reflect the work that has gone into the piece.

Other important factors to consider are the jewellery's construction and design. The techniques of construction can make a piece more durable and flexible for added comfort. A well-made piece in a classic design will give you years of wear and enjoyment and, if cared for properly, will last a lifetime. Unique design, intricate details, gemstones or a special clasp may add to the price.

Gold jewellery is mainly produced by machine. Any additional hand finishing or textural interest raises the cost. Similar looking pieces may have vastly different price tags. This is because different pieces may have specific characteristics that make them unique. So look carefully to notice any differences and similarities. Often, it's these small details that give you pleasure through the years that you enjoy a piece of jewellery, and ensure that your children will also enjoy it.