Diamond Carat Weight: The Final C in Our 4 C's Series
We've reached the last installment of Schwanke-Kasten's series on the 4 C's of engagement rings, and we're finishing with one of the most talked-about factors in choosing a diamond: carat weight.
What Is Carat Weight?
Carat weight is simply how a diamond's mass is measured. One metric carat equals 200 milligrams, and each carat is divided into 100 points — so a 75-point diamond weighs 0.75 carats. You'll often see carat weight expressed as both a decimal and a fraction; for example, a diamond between 0.70 and 0.83 carats is commonly referred to as a three-quarter carat stone.
Why Size Affects Price
As a diamond's carat weight increases, so does its rarity — and its value. To put that in perspective, fewer than one in every million rough stones mined are large enough to yield a finished 1-carat diamond. (Source: Diamond Council of America.) That scarcity is reflected directly in price, which is why even small jumps in carat weight can mean a significant difference in cost.
The Most Objective of the 4 C's
Unlike cut, color, or clarity — which all involve a degree of grading interpretation — carat weight is a precise, measurable number. That makes it the most objective of the four criteria, and often the starting point for shoppers setting a budget or prioritizing size.
Explore the Full 4 C's Series
Now that you've read them all, here's a quick recap of the complete series:
- Cut: Schwanke-Kasten Explores the 4 C's
- Clarity: Schwanke-Kasten Explores the 4 C's
- Color: Schwanke-Kasten Explores the 4 C's
- Carat Weight: You're reading it now!
Ready to put your knowledge to use? Visit Schwanke-Kasten Jewelers and let our team help you find a diamond that balances all four C's — and fits your vision perfectly.
