Diamond shape is the first thing most people notice about an engagement ring—and one of the most personal choices in the entire process. It affects not only how the ring looks, but also how big the diamond appears, how much it costs, and how it complements the wearer’s hand. In this guide, we break down the most popular diamond shapes for engagement rings, including their pros, cons, style personality, and budget considerations.
1. Round Brilliant
Look: Perfectly symmetrical, maximum sparkle
Pros: Most brilliant cut, timeless, always in style
Cons: Typically most expensive shape per carat
Best For: Classic romantics, traditional elegance
Budget Tip: A 0.90 ct round can look nearly identical to a 1.00 ct—at lower cost
2. Oval
Look: Elongated and elegant, with brilliant sparkle
Pros: Finger-lengthening, appears larger than round of same carat
Cons: Bowtie effect if poorly cut
Best For: Modern romantics, trendy but timeless
Budget Tip: Ovals can appear 10–15% larger face-up than rounds
3. Emerald
Look: Step-cut, hall-of-mirrors effect, sophisticated
Pros: Understated glam, larger surface area
Cons: Less brilliance than brilliant cuts; clarity must be high
Best For: Vintage lovers, minimalists, confident dressers
Budget Tip: Focus on VS1 or better clarity to maintain visual crispness
4. Cushion
Look: Soft, pillow-like square or rectangle
Pros: Romantic, warm sparkle, great in halos
Cons: Can look smaller than other shapes of same carat
Best For: Sentimental, whimsical personalities
Budget Tip: Cushion cuts often cost less per carat than rounds or ovals
5. Princess
Look: Sharp corners, square silhouette
Pros: Great brilliance, modern feel, geometric
Cons: Corners can chip if not protected in setting
Best For: Edgy, trend-conscious shoppers
Budget Tip: Slightly smaller face-up than round, but more affordable per carat
6. Pear
Look: Teardrop shape, bold and flattering
Pros: Unique look, elongates the finger
Cons: Off-center symmetry or poor polish shows easily
Best For: Non-traditionalists, bold romantics
Budget Tip: Go for a bezel or halo setting to protect the pointed tip
7. Radiant
Look: Like a hybrid of emerald and round—sparkly and structured
Pros: Fire and brilliance, durable corners
Cons: Not as well-known, fewer certified options
Best For: Statement-makers, glam lovers
Budget Tip: Offers round-like sparkle at a lower price point
8. Asscher
Look: Square emerald-style cut, deep and art deco
Pros: Architectural, clean symmetry
Cons: Needs excellent clarity; appears smaller than other shapes
Best For: Vintage fans, old-world glamour
Budget Tip: Works best in solitaire or bezel settings to amplify shape
9. Marquise
Look: Pointed ends, elliptical silhouette
Pros: Longest shape for the weight, very flattering
Cons: Easily chips at tips without protection
Best For: Fashion-forward buyers, regal energy
Budget Tip: Looks larger than any other shape per carat—amazing value
10. Heart
Look: The ultimate romantic symbol
Pros: Rare, eye-catching, instantly recognizable
Cons: Hard to cut well, requires large size to show shape
Best For: Sentimental or bold personalities
Budget Tip: Choose a size over 0.75 ct to ensure the shape reads clearly
Shape Tips
Finger shape/size
Oval, pear, and marquise elongate the hand
Lifestyle
Round, bezel-set cushion, and radiant = durable
Budget
Cushion, oval, and pear offer great value per carat
Personality
Round = classic; emerald = sophisticated; heart = bold
Your engagement ring’s shape should reflect your style, your story, and how you want your diamond to show up in the world. Whether you're drawn to the timeless sparkle of a round or the bold geometry of an emerald cut, the perfect shape is the one that feels like you. Watch the video below to learn which engagement ring cut is right for you.