What Does TCW Mean for Diamond Studs?

TCW means Total Carat Weight. For diamond stud earrings, it represents the combined weight of both diamonds—not the weight of each individual diamond.

For example:

• 1.00 TCW earrings contain two diamonds weighing approximately 0.50 carat each.

• 2.00 TCW earrings contain two diamonds weighing approximately 1.00 carat each.

• 3.00 TCW earrings contain two diamonds weighing approximately 1.50 carats each.

• 4.00 TCW earrings contain two diamonds weighing approximately 2.00 carats each.

• 5.00 TCW earrings contain two diamonds weighing approximately 2.50 carats each.

The individual diamonds may vary slightly in weight because they are selected to match closely in diameter, color, clarity, cut, and overall appearance.

Carat weight measures a diamond’s weight, not its exact physical dimensions. Two diamonds of the same carat weight can appear slightly different in size depending on their proportions and how their weight is distributed.

When comparing diamond stud earrings, always confirm whether the advertised carat weight refers to the entire pair or to each individual diamond. For earrings described as 2.00 TCW, the pair—not each earring—has a combined diamond weight of approximately 2.00 carats.