A 1-carat diamond is a classic for a reason: it’s visibly striking and investment-worthy. And because it’s widely available, you’ll find options across a range of budgets and quality levels. Of course, this also means that not all 1-carat stones are created equal. How do you know if you're getting true value?
Understand what carat means
It’s a common misconception that carat refers to a diamond’s size, but it actually measures weight, not dimensions. Two diamonds with the same carat weight can look very different depending on their cut and shape.
A 1-carat diamond equals 200 mg, but different shapes can affect its overall size.
- A round brilliant cut is typically around 6.47 × 6.47 mm.
- A princess cut has a squarer look at about 5.51 × 5.51 mm.
- If you want something that looks bigger on the finger, an oval cut measures around 8.12 × 5.41 mm.
Look at the 4 Cs
Colour
Choose a colour grade that suits your taste and budget.
- For a traditional, icy-white look, D to F is ideal.
- If you want a more budget-friendly option, H to J can still look bright, especially when paired with yellow or rose gold.
Clarity
Aim for a stone that looks clean to your naked eye. Avoid inclusions that could affect durability or distract from the stone’s appearance.
Cut
Cut is the most crucial of the 4 Cs. A well-cut diamond delivers the fire and sparkle that you’ll love in your custom ring. It also maximizes the stone’s beauty at any carat weight.
Verify the diamond’s authenticity and traceability
At ARSH Pure Diamonds, you can choose from conflict-free, GIA-certified natural diamonds, giving you full confidence in the stone you select. You can also review prices and compare options directly on our website, helping you set a clear budget.
Ready to buy 1-carat diamonds?
Explore our collection of carat diamonds at ARSH Pure Diamonds for a smooth, confident shopping experience. You can also call us at (866) 612-ARSH or chat with our team online for personalized advice in choosing a 1-carat diamond for your custom ring.