CTW stands for carat total weight. It is used to evaluate jewelry that contains multiple diamonds throughout the piece. Carat total weight is one of the factors used to determine the value of diamond jewelry.Know More
A carat is equal to 200 milligrams. Though the weight is the same, the size of a carat may change depending on the type of gem being measured. The reason for this difference is that gems have different densities.
The shape and cut of a diamond can make it difficult to effectively judge the carat weight of the stone. For this reason, diamond weight estimators take these factors into account to provide consumers with information about the value of their piece.Learn more about Precious Metals & Gems
Natural diamonds are formed deep within the earth, using heat and pressure found around 87 to 118 miles beneath the surface. Carbon compressed tightly together forms a crystal lattice, the purity of which determines colors in the diamond.Full Answer >
A common process for mining diamonds is to remove and process kimberlite ore. Kimberlite ore can be found in underground mines and open pits and often contains a small amount of diamonds that must be separated from the ore. The process of mining can require several months or longer, depending on the size of the mine.Full Answer >
Diamonds, which are one form of pure carbon, are created from intense heat and pressure that happen deep inside the earth over eons. In modern times, scientists have learned how to recreate this heat and pressure to make artificial diamonds.Full Answer >
On a carat for carat basis, rubies are worth more than diamonds of similar size and weight. The reason that rubies are more expensive is the fact that it is much rarer for rubies to be found without faults than it is to find a flawless diamond.Full Answer >