The carat weight of the stones can be measured by a certified gemologist.
A diamond necklace at Journey can, depending on the carat and cut of the diamond(s), the quality and make of the gold and the actual design, cost anywhere between $400 - $1600.
A 14 carat gold necklace costs on average $1,230.
The price of one carat diamond white gold studded earrings varies widely. You can purchase them for as little as $250 or for as much as $1200 depending on exactly the style you're looking for.
9 carat
The value of a diamond depends on its cut, its clarity, its colour and its carat weight. A local jeweler can give you the answer you want.
Your answer is best available at your pawn shop of choice.
Yes, the 2.2 Carat Trillium Baguette Diamond Engagement Ring is lighter than gold besides white gold.
I have a white gold ring stamped 750 HG with a diamond. The dimond is real. I filed the ring shank and it still tested 18kt. gold
The price for a one carat diamond cluster will vary greatly depending on things such as the quality and size of the diamonds in the cluster. The type of ring setting is also a factor in price such as 10, 14, 18 or 24 carat gold. An example is a 10k white gold diamond cluster is $600 at Zales but a 14 carat diamond cluster on the Ross Simons site sells for $2,471.
Your question is not clear. Is it referring to Diamond carat or Gold karat. This is because both have different meaning. While, Carat refers to weight of diamond (or gemstones), Karat refers to purity of gold. Check the link.
The price depends on two things: the karat value of the white gold and the colour, cut, clarity and carat weight of the stone.
White gold