Carat is all about WEIGHT
What is Carat Weight?
Carat measures the diamond’s weight, not its size. One carat equals 0.20 grams and is divided into 100 points (e.g., 0.50 carats = 50 points). While carat weight can affect a diamond’s size, it’s only one factor — cut and shape also influence how large the diamond appears. While larger diamonds often have higher prices, carat should be considered alongside cut, color, and clarity for overall beauty.
If you're wondering how carat weight translates to size, these are the most popular engagement ring sizes:
1.0 Carat: A timeless choice, around 6.5mm diameter
1.5 Carats: Offers a more noticeable presence, about 7.4mm diameter
2.0 Carats: Makes a bold statement, approximately 8.1mm diameter
Shown with 1.0ct
What Affects the Carat of a Diamond?
Cut Quality
A well-cut diamond reflects more light, making it appear larger than its actual carat weight. Poorly cut diamonds may look smaller due to light leakage.
Shape of the Diamond
Certain shapes, like oval, marquise, and pear, create the illusion of a larger diamond for the same carat weight. Round and cushion cuts, while popular, may appear slightly smaller in comparison.
Depth and Table Percentage
Diamonds with shallow depths have a wider spread, making them look larger. Deep-cut diamonds may hide carat weight, making them appear smaller.
Setting Style
Halo or bezel settings can enhance the perceived size of a diamond, giving a larger appearance without increasing carat weight.
How Do You Choose a Diamond Based on Carat Weight?
Balance Carat with Cut for Maximum Impact
A smaller, well-cut diamond will appear more brilliant and larger than a poorly cut diamond with a higher carat weight.
Consider Slightly Under Whole Carat Sizes for Better Value
Diamonds just below major carat milestones (e.g., 0.90ct instead of 1.00ct) offer similar size with significant cost savings.
Choose Elongated Shapes for a Larger Look
Shapes like oval, pear, and marquise create the illusion of a bigger diamond, making them great options for maximizing size.
Factor in Finger Size and Proportion
A 1-carat diamond will appear larger on a smaller finger, while a 2-carat diamond might look more proportional on larger hands.
Prioritize Cut Over Carat for Sparkle
A slightly smaller diamond with an excellent cut will outshine a larger diamond with a lower cut grade.
Pro Tip: For the best balance of size, brilliance, and value, focus on cut quality first, then choose a carat weight that fits your style and budget. A well-cut diamond can make a lower-carat stone appear larger and going just under whole carat sizes (e.g., 0.90ct or 1.90ct) can offer noticeable savings without sacrificing beauty
