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 >
Natural diamonds typically come from inside the Earth’s mantle. They form when carbon deposits are acted upon by a combination of high temperatures and pressure. Formation of a diamond from carbon requires one to 3.3 billion years, and they rise in magma to near the Earth’s surface through volcanic action. Once the magma has cooled into igneous rock, the diamonds can be mined.Full Answer >
Pure purple diamonds are precious stones that are exceedingly uncommon in nature and often occur as synthetic diamonds. Pure purple ranks as the second rarest hue in diamonds.Full Answer >
Blood diamonds, sometimes called conflict diamonds, are stones mined in areas of the world undergoing civil war or strife and sold to support warlords, insurgents or invading armies. Since diamonds are extremely valuable and portable, trading these stones is an easy way for forces to generate quick money.Full Answer >