Carat Weight – Understanding Diamond Size & Value

Carat weight is the standard unit of measurement used to weigh diamonds. One carat equals 0.20 grams and is divided into 100 points. This means:

• 0.50 carat = 50 points (½ carat)
• 0.75 carat = 75 points (¾ carat)
• 1.00 carat = 100 points (1 carat)

While carat weight is one of the most visible factors when buying a diamond, it is not the only factor that determines price or beauty. Two diamonds of the exact same carat weight can look very different in size and sparkle dramatically depending on how well they are cut.

Why Two Diamonds of the Same Carat Weight Can Look Different

Diamonds are weighed by carat, not measured by size. A poorly cut diamond can appear much smaller than a well-cut diamond of the same weight.

• If a diamond is cut too shallow, it will have a larger diameter but lose brilliance and fire.
• If a diamond is cut too deep, it will have a smaller face-up diameter and appear smaller than it should.

A beautifully cut diamond will deliver maximum face-up size and exceptional sparkle.

Real Example – 1.00 Carat Round Diamond

As you can see, the poorly cut 1.00ct diamond can appear closer to a 0.90ct stone — meaning you’re paying for a full carat but not getting the visual size or beauty you deserve.

Our Advice When Buying Diamonds on the Gold Coast

At Troy Clancy Jewellery in Burleigh Heads, we believe cut quality is just as important as carat weight. That’s why we only offer diamonds that are well-cut and properly proportioned so you get the biggest possible look and the best possible sparkle for your budget.

Whether you’re looking for a 0.50ct, 1.00ct, 1.50ct or larger diamond for an engagement ring or custom piece, we will show you the difference side-by-side so you can make an informed decision.

Ready to find the perfect diamond for your budget? Book a free consultation at our Burleigh Heads studio or arrange a concierge visit. We’ll help you choose the right carat weight, cut, and quality — without the hard sell.