Diamond Shape Guide: Choosing the Perfect Shape for Your Style

March 02 2025, by Michael Kerkinni, 3 min reading time

Diamond shape defines a ring’s overall look and personality. From classic round to unique marquise, discover the best diamond shape for your engagement ring.

When selecting a diamond, shape plays a crucial role in defining the ring’s overall appearance and style. Unlike cut, which refers to a diamond’s faceting, diamond shape is the actual outline of the stone. From the timeless round to the distinctive marquise, each shape offers a unique aesthetic appeal.

Popular Diamond Shapes and Their Features

1. Round Brilliant

The most popular and classic diamond shape.
Features 58 facets that maximize brilliance and fire.
Ideal for those who want maximum sparkle and a timeless look.

2. Princess Cut

A modern, square-shaped diamond with sharp corners.
Second most popular choice for engagement rings.
Offers excellent brilliance and a contemporary appeal.

3. Oval Cut

An elongated shape that enhances finger length.
Offers brilliance similar to a round diamond but appears larger per carat.
A great choice for those who want a balance of elegance and size.

4. Cushion Cut

Features a square or rectangular shape with rounded corners.
Known for its vintage charm and soft, romantic look.
Available in both brilliant and modified brilliant faceting styles.

5. Emerald Cut

A rectangular shape with step-cut facets that create a "hall of mirrors" effect.
Highlights clarity rather than brilliance.
Ideal for those who love understated elegance and sophistication.

6. Marquise Cut

An elongated shape with pointed ends, creating a striking and unique look.
Maximizes carat weight, making it appear larger than other shapes.
Perfect for those who love bold and dramatic designs.

7. Pear Cut

A teardrop-shaped diamond that blends round and marquise characteristics.
Offers a unique and elegant look.
Can be worn with the point facing up or down for different styles.

8. Radiant Cut

A rectangular or square shape with brilliant-cut facets for extra sparkle.
Combines the elegance of an emerald cut with the brilliance of a round diamond.
Great for those who want brilliance with a distinctive shape.

9. Asscher Cut

A square-shaped diamond with step-cut facets, similar to the emerald cut.
Offers a vintage, Art Deco-inspired aesthetic.
Best for those who appreciate antique-style elegance.

10. Heart Shape

A romantic and symbolic choice, perfect for sentimental buyers.
Requires excellent symmetry to maintain its distinctive heart shape.
Best suited for those who love bold, meaningful designs.

Choosing the Right Shape for You

When selecting a diamond shape, consider the following factors:

Personal Style: Classic, modern, vintage, or bold.
Finger Shape: Elongated shapes (oval, marquise) create a slimming effect.
Setting Compatibility: Some shapes work best with certain ring settings.
Brilliance vs. Clarity: Brilliant cuts (round, princess) maximize sparkle, while step cuts (emerald, Asscher) highlight clarity.

At Princess Jewelry, we offer a variety of stunning diamond shapes to match every personality and style. Explore our collection to find the perfect diamond for your dream ring!