Archives: FAQs

Find out its weight in grams and divide this by 0.200 (the weight of one carat) to calculate a diamond’s carat weight.  You can also roughly calculate a diamond’s weight based on its cut, diameter, and height in millimeters. But remember that a carat is a unit of weight, it’s not a measure of size.… Continue reading How do you calculate the weight of a diamond?

0.200 grams is equal to one carat, so a one-carat diamond weighs 0.200 grams.  However, diamond weight is generally measured in carats, so a one-carat diamond weighs exactly one carat.

There is no set ‘rule.’ Instead, you should select the best possible diamond that’s within your engagement ring budget.  If you’d like to visualize a diamond’s size based on its weight, try Peter Norman’s diamond weight calculator above. Simply select the cut, then enter the gem’s widest, narrowest, and depth measurements

A round-cut diamond with a 7-mm diameter and a 3-mm depth weighs approximately 0.9 carats. We’ve based this on our diamond calculator above, for a more accurate result, select the cut of your diamond.

No. Carat is not the only measure of a diamond’s worth. For example, a six-carat diamond with a ‘flawless’ GIA rating will always be worth more than a seven-carat diamond that’s graded ‘included’, which means its inclusions (flaws) are obvious. Cut is also a factor. If you’re struggling to understand what factors determine a diamond’s… Continue reading Is a higher carat always better?

An 18-carat diamond means the gem is both heavy and expensive. Carat is a measurement of diamond weight and, density aside for a moment, this roughly corresponds to its size.  If you’d like help imagining how much a diamond weighs in carats, try our diamond weight calculator above.

It depends on the market and the diamond’s GIA rating. Because diamonds are a commodity, their price can fluctuate, and because carat isn’t the only measure of a diamond’s quality, its carat weight alone doesn’t dictate its value.  At the time of writing (2022), the diamond market was strong with the prices for wholesale mined… Continue reading What is a 0.25-carat diamond worth?

All diamonds are good! A 0.25-carat diamond is a quarter-carat diamond and it is enough weight to add a lovely sparkle to any engagement ring. If you’re looking for something bigger without breaking the bank, consider lab-grown diamonds. Plus, they look absolutely identical to a mined diamond and are chemically the same; even a jeweler… Continue reading Is a 0.25-carat diamond good?

It depends who you’re asking! Plenty of people love their one-carat diamonds, and this weight is a common choice for engagement rings.  Remember that weight isn’t the only measure of a diamond’s value. Factors such as clarity and density also affect a diamond’s size.