Round Diamond Engagement Rings

Propose with timeless style when you design a handcrafted ring with a round brilliant diamond. Round diamonds are the most popular choice at Blue Nile because of their traditional look and incredible sparkle. This shape is also the most versatile, pairing seamlessly with virtually every setting style offered at Blue Nile.


15 of 1229 Round Diamond Engagement Rings

FAQs about Round Diamond Engagement Rings

Carat is a term used to reference the weight of a diamond. A diamond's carat weight affects the price of the diamond more than any other of the 4Cs.

Round cut diamonds are both the most popular and the most expensive shape. Maximize your budget by considering the nine fancy shapes, including princess, emerald, Asscher, cushion, marquise, radiant, oval, pear, and heart.

Round diamonds are a classic shape and complement every style of engagement ring available at Blue Nile. Keep it simple with a traditional solitaire ring, or enjoy maximum sparkle with a halo ring style.

Most customers choose a center stone of just under one carat, but you can choose any carat weight for your engagement ring.

Top Round Diamond Engagement Ring Reviews

Round Diamond Engagement Ring

Beautiful Ring

I shopped around at many diamond stores, but could not find better value than at Blue Nile. My Fiancée and I love the ring and I don't feel like I was ripped off. I highly recommend Blue Nile for any diamond purchase.
Zachary G. - Verified Buyer
Average Customer Rating $5 out of 5 stars

French Pavé Diamond Engagement Ring

14k Rose Gold (1/4 ct. tw.)

JP¥ 187,500

Round Diamond Engagement Ring

She said yes!

The Astor ideal is absolutely brilliant, she absolutely loved the ring. Simple elegance with the micropave band and big sparkling round cut.
Joshua O. - Verified Buyer
Average Customer Rating $5 out of 5 stars

Petite Micropavé Diamond Engagement Ring

Platinum (1/10 ct. tw.)

JP¥ 147,500

Round Diamond Engagement Ring

Beautiful ring!!!

I bought this ring and paired it with a 1.8 CT round diamond. My (now) fiancée loves it! She gets nothing but compliments on it, which makes me very happy. In terms of my overall experience with Blue Nile, it was fantastic. I really liked the customization and transparency in terms of being able to pick out which diamond I wanted. Also I was a little nervous about making such a big purchase online without having seen the ring first. However, their online support team answered all my questions and their 30 day refund policy was also very reassuring. Overall, I would definitely recommend Blue Nile and will be buying our wedding rings from here as well!!
David L. - Verified Buyer
Average Customer Rating $5 out of 5 stars

Milgrain Marquise and Dot Diamond Engagement Ring

14k White Gold (1/5 ct. tw.)

JP¥ 185,000

now: JP¥ 120,000

Round Diamond Engagement Ring

Quality one of a kind beautiful diamond

I ordered my partners ring they promised it would arrive before we went on vacation or they would return it free of charge, I got it on time and wow is it gorgeous, stop buying tour diamonds anywhere else. Why pay more for lower quality and no service, this is a company you can trust to give you the best quality diamond at the best and lowest price. Why buy anywhere else. Love our new diamond.
Jeffrey M. - Verified Buyer
Average Customer Rating $5 out of 5 stars

Plain Shank Floating Halo Engagement Ring

14k White Gold

JP¥ 128,000


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