Platinum Round Cut Engagement Rings

Shop our beautiful collection of Platinum Round Cut Engagement Rings. Choose from our large selection of natural and lab grown diamonds to complete your engagement ring.

Financing available withKlarna Logo orAffirm Logo
The Geneva Round Cut Platinum The Geneva Four Prong Solitaire Engagement Ring
Video play badge
New Arrival!

METAL

Financing available withKlarna Logo orAffirm Logo
The Teya Round Cut Platinum The Teya Four Prong Solitaire Engagement Ring
Video play badge
New Arrival!

METAL

Financing available withKlarna Logo orAffirm Logo
The Orielle Round Cut Platinum The Orielle Four Prong Solitaire Engagement Ring
Video play badge
New Arrival!

METAL

Financing available withKlarna Logo orAffirm Logo
The Giselle Round Cut Platinum Twisted Halo Engagement Ring
Video play badge

$848.40Discounted price $1,212.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Lunelle Round Cut Platinum The Lunelle Solitaire
Video play badge

$886.20Discounted price $1,266.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Una Round Cut Platinum Classic 6 Prong Solitaire Engagement Ring
Video play badge
Most Loved

$926.10Discounted price $1,323.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Elodie Round Cut Platinum Four Prong Solitaire Diamond Engagement Ring
Video play badge
Most Loved

METAL

Financing available withKlarna Logo orAffirm Logo
The Kenzie Round Cut Platinum Solitaire Diamond Braided Engagement Ring
Video play badge

$1,037.40Discounted price $1,482.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
Toi et Moi Personalized Round Cut Platinum Toi Et Moi Personalized Round Emerald Cut Diamond Engagement Ring

METAL

Financing available withKlarna Logo orAffirm Logo
Toi et Moi Personalized Round Cut Platinum Toi Et Moi Personalized Round Oval Cut Diamond Engagement Ring
Video play badge

METAL

Financing available withKlarna Logo orAffirm Logo
Toi et Moi Personalized Round Cut Platinum Toi Et Moi Personalized Round Pear Cut Diamond Engagement Ring

METAL

Financing available withKlarna Logo orAffirm Logo
The Lia Round Cut Platinum The Lia Solitaire
Video play badge

$1,149.40Discounted price $1,642.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Maddie Round Cut Platinum Octagon Solitaire Engagement Ring
Video play badge

$1,197.00Discounted price $1,710.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Nivea Round Cut Platinum Four Prong Petal Inspired Solitaire Diamond Engagement Ring
Video play badge
Most Loved

METAL

Financing available withKlarna Logo orAffirm Logo
The Dara Round Cut Platinum The Dara Bezel
Video play badge
Most Loved

$1,208.20Discounted price $1,726.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Anastasia Round Cut Platinum Round Marquise Sidestone Diamond Engagement Ring
Video play badge

METAL

Financing available withKlarna Logo orAffirm Logo
The Mikaela Round Cut Platinum Floating Diamond Engagement Ring
Video play badge

$1,298.50Discounted price $1,855.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Gloria Round Cut Platinum Pave Double Prong Engagement Ring With Surprise Diamonds

METAL

Financing available withKlarna Logo orAffirm Logo
The Milena Round Cut Platinum High Set Solitaire Knife Edge Engagement Ring
Video play badge
Most Loved

METAL

Financing available withKlarna Logo orAffirm Logo
The Teisha Round Cut Platinum Lattice Micropave Diamond Band Engagement Ring
Video play badge

METAL

Financing available withKlarna Logo orAffirm Logo
The Ora Round Cut Platinum 4 Prong Petal Head Solitaire Engagement Ring
Video play badge
Most Loved

$1,346.80Discounted price $1,924.00Original price
METAL

Financing available withKlarna Logo orAffirm Logo
The Evelyn Round Cut Platinum Solitaire Kite Set Swirl Diamond Engagement Ring
Video play badge

METAL

Financing available withKlarna Logo orAffirm Logo
The Ciara Round Cut Platinum Split Double Band Solitaire Engagement Ring 1
Video play badge

METAL

Financing available withKlarna Logo orAffirm Logo
The Vera Round Cut Platinum Classic Solitaire Engagement Ring
Video play badge

$1,385.30Discounted price $1,979.00Original price
METAL

You’ve viewed 24 of 162 products

Shop our beautiful collection of Platinum Round Cut Engagement Rings. Choose from our large selection of natural and lab grown diamonds to complete your engagement ring.

Platinum Round Cut Engagement Rings

Shape

Round cut diamonds (also called brilliant-cut diamonds) are revered for their classic shape and incredible sparkle. Cut with 58 facets — or 57, if there is no culet — the round shape was designed to produce as much sparkle as possible. As sparkle is what many people are looking for when they buy a diamond, round cuts are immensely popular.

60% of the diamonds in our inventory are round-shaped, making it easy for you to find the right one for your needs. Not only are round cut diamonds the most sparkly, but they are also the most popular diamond shape. However, because they are the most sparkly and the most popular, this makes them the most expensive diamond shape.

Round cut diamonds are perfect for custom jewelry, such as earrings and pendants. To make your round cut diamond appear even larger, choose a halo setting. Or let your round cut diamond stand out on its own in a solitaire setting.

Metal

Platinum is a very popular choice for engagement rings. Platinum is a white metal that is also extremely durable. Because platinum is too soft in it's pure form to be used for jewelry, it is usually combined with a small percentage of other metal alloys such as cobalt, iridium, ruthenium, or palladium.

Lab Grown and Natural Diamonds

To complete your engagement ring, choose from our large selection of certified natural and lab grown diamonds. Whether you are looking for a 1 carat diamond or a 5 carat diamond, you are sure to find something that matches your expectations. Save 40% or more by choosing from our lab grown diamond collections.

All Ritani diamonds are certified by independent diamond grading laboratories. Our earth grown diamonds are certified by either the AGS or GIA – the two most respected independent grading labs in the world, while most of our lab grown diamonds are certified by IGI, the most respected independent lab diamond grading labaratory.

If you need help selecting your Platinum Round Cut Engagement Rings, reach out to us at 1-888-9RITANI or chat now.

Frequently Asked Questions