Marquise-cut diamonds are the ultimate choice for those who love a bold, elegant look. With their elongated shape and pointed ends, marquise diamonds create a larger face-up appearance compared to other shapes of the same carat weight. Whether you're designing a custom engagement ring or choosing a loose diamond, understanding the size chart is key.
Letโs explore real-world marquise diamond dimensions so you can choose the perfect size for your next jewelry piece with Variation.
๐ Marquise Diamond Size Chart (Length x Width in mm)
Hereโs a detailed size chart based on actual measurements. This will help you visualize how each carat weight looks in real life.
| Carat Weight | Length (mm) | Width (mm) | Length-to-Width Ratio |
|---|---|---|---|
| 0.02 ct | 3.0 | 1.4 | 2.14 |
| 0.03 ct | 2.5 | 1.5 | 1.67 |
| 0.04 ct | 3.0 | 2.0 | 1.50 |
| 0.04 ct | 3.4 | 1.6 | 2.13 |
| 0.07 ct | 4.0 | 2.0 | 2.00 |
| 0.08 ct | 4.2 | 2.2 | 1.91 |
| 0.10 ct | 4.4 | 2.4 | 1.83 |
| 0.12 ct | 5.0 | 2.5 | 2.00 |
| 0.15 ct | 5.0 | 3.0 | 1.67 |
| 0.16 ct | 5.4 | 2.8 | 1.93 |
| 0.18 ct | 6.0 | 3.0 | 2.00 |
| 0.25 ct | 6.4 | 3.2 | 2.00 |
| 0.30 ct | 6.5 | 3.5 | 1.86 |
| 0.30 ct | 7.0 | 3.4 | 2.06 |
| 0.35 ct | 7.4 | 3.6 | 2.06 |
| 0.40 ct | 7.0 | 4.0 | 1.75 |
| 0.40 ct | 7.6 | 3.8 | 2.00 |
| 0.45 ct | 8.0 | 4.0 | 2.00 |
| 0.50 ct | 8.2 | 4.2 | 1.95 |
| 0.60 ct | 8.6 | 4.4 | 1.95 |
| 0.65 ct | 8.8 | 4.6 | 1.91 |
| 0.85 ct | 9.2 | 4.2 | 2.19 |
| 0.90 ct | 9.7 | 5.1 | 1.90 |
| 1.00 ct | 10.4 | 5.2 | 2.00 |
Note: Sizes are approximate and may vary slightly due to individual cutting styles.
๐ What Is the Ideal Length-to-Width Ratio?
For a balanced and elegant marquise diamond, a length-to-width ratio of 1.90 to 2.10 is ideal. A ratio close to 2.00 gives the most classic marquise shapeโneither too narrow nor too wide.
- 1.75โ1.85 โ Slightly wider appearance
- 1.90โ2.10 โ Classic, elongated silhouette
- 2.15+ โ Slimmer and more dramatic look
๐ก Tips for Choosing the Right Marquise Size
- Consider finger coverage: Larger carat weights with higher ratios look more elongated on the finger.
- Check for symmetry: Both ends should match perfectlyโthis greatly affects visual appeal.
- Avoid extreme bow-tie: Ensure the dark bow-tie effect is minimal for better brilliance.
- Prong protection: Always use prongs to secure the pointed ends and prevent chipping.
๐ Popular Jewelry Styles for Marquise Diamonds
Marquise diamonds are versatile and stylish in:
- Solitaire rings for timeless elegance
- Vintage halo settings for a regal vibe
- Three-stone rings with tapered side stones
- East-west rings for a contemporary twist
- Drop earrings and pendants that highlight the unique shape
๐ฑ Why Choose Lab-Grown Marquise Diamonds from Variation?
At Variation, we offer IGI Certified Lab-Grown Marquise Diamonds, ensuring you get sustainable, ethically sourced, and dazzlingly brilliant stonesโat a better value than mined alternatives.
- โ๏ธ Conflict-free
- โ๏ธ Custom jewelry available
- โ๏ธ Worldwide shipping
- โ๏ธ Exceptional quality, certified by IGI
๐ Still Not Sure What Size to Pick?
Weโre here to help! Whether youโre designing a custom marquise engagement ring or looking for a unique pendant, our gem experts at Variation will guide you every step of the way.
โจ Explore Our Collection of Marquise Lab-Grown Diamonds
Shop Now โ Discover the perfect blend of brilliance, sustainability, and elegance.