1 Carat Diamond Price by Shape: What You Need to Know Before Buying
A 1 carat diamond is a timeless choice—classic, elegant, and just the right size for many engagement rings. But here’s something most shoppers don’t realize: diamond shape has a big impact on price.
Whether you're deciding between round or oval, lab-grown or natural, understanding how shape affects cost can help you shop smarter and get the most value for your budget.
At Ritani, we believe in transparent pricing and honest guidance. Below, we’ve broken down real 2024 average prices for the most popular 1 carat diamond shapes—so you can make your decision with confidence.
1 Carat Diamond Prices by Shape (2025 Averages)
Shape | Natural Diamond Price | Lab-Grown Diamond Price |
|---|---|---|
Round | $3,500 – $4,000 | $500 – $600 |
Oval | $3,500 – $4,000 | $500 – $700 |
Emerald | $2,700 – $3,200 | $380 – $450 |
Cushion | $2,000 – $2,500 | $350 – $450 |
Pear | $4,200 – $4,700 | $400 – $650 |
Radiant | $2,500 – $3,000 | $400 – $500 |
Asscher | $2,000 – $2,500 | $700 – $750 |
Princess | $2,500 – $3,000 | $650 – $750 |
Marquise | $4,200 – $4,700 | $450 – $500 |
Prices based on G color, VS2 clarity. Actual cost may vary based on cut quality, color grade, clarity, and certification.
Why Does Shape Affect Diamond Price?
There’s more to pricing than just carat weight. Here's why shape matters:
- Round diamonds are the most expensive because they’re the most popular—and cutting them wastes more of the rough stone.
- Fancy shapes like oval, emerald, and cushion retain more of the original rough, making them more affordable.
- Lab-grown diamonds are 60–80% less expensive than natural diamonds, even though they’re chemically and visually identical.
Lab-Grown vs Natural Diamonds at 1 Carat
Type | Average Price | Look & Feel | Value Over Time |
|---|---|---|---|
Natural | $2,500+ | Traditional, rare | Holds value better |
Lab-Grown | $400+ | Identical to natural | More affordable upfront |
Thinking about lab-grown vs natural? Both are stunning, but your choice depends on what matters most—budget, values, or long-term resale potential.
Which Shape Offers the Best Value?
- If sparkle is your top priority, you can’t beat a round brilliant diamond. It’s engineered for maximum light performance.
- But if you’re looking to maximize size and value, consider an oval or emerald cut. These shapes can appear larger on the finger and cost less per carat than round diamonds.
Want to Compare Prices in Real Time?
- Still not sure where to start?
Work With a Gemologist (For Free)
- Choosing a diamond can be overwhelming, but it doesn’t have to be. Schedule a free virtual consultation with one of our non-commissioned gemologists. No pressure—just personalized advice to help you find the right shape, size, and stone for your budget.
At Ritani, we’re here to help you find the diamond that’s perfect for you—in both shape and price.
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