Iris + Mill

Diamond Three-Stone Engagement Ring (1.50 ct. tw.)


Exceptional added brilliance is a result of three stunning round diamonds, including a larger center stone and two slightly smaller side stones, set in delicate four-prong interwoven settings for a truly unique three-stone diamond engagement ring. Total carat weight for the three round diamonds is 1.50 and a variety of 14k gold ring metal options are available. 


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Ships By Tue, Apr 16

Product Details

Ring Information

Metal Options 14k White Gold, Yellow Gold, Rose Gold
Setting Prong
Band Style Plain Metal Band

Gemstone Information

Average Color I/J
Average Clarity SI2
Center Stone Shape Round
Accent Stone Shape Round
Diamond Total Carat Weight 1.50 ct. tw.
Diamond Total 3
Diamond Cut Ideal/Excellent

Why We love it

Three-stone engagement rings still offer classic timeless look with a little twist. This style allows you to mix and match different gemstone types (like sapphire and diamond), shapes, and sizes that create eye-catching looks and added brilliance.

Three-stone engagement rings

iris & mill promise

Our mission simple, pour every ounce of our passion and expertise (culminated over the past 70-plus years) into providing the highest quality jewelry at unmatched value, and settle for nothing less exceeding every customer's expectations.

Experience the difference.

Our mission is to offer a lifetime of commitment to our customers. As part of the promise, we’re proud to offer a lifetime diamond upgrade program for natural colorless diamonds or gemstones mounted in any wedding ring, engagement ring, or stud earrings purchased from Iris & Mill.

As part of our commitment to our customers, we’re proud to offer a Free Lifetime Manufacturer Warranty at Iris & Mill. We stand behind the craftmanship of our jewelry and guarantee to provide lifetime protection against manufacturing defects.

Unlike other online jewelry companies that buy their diamonds and gemstones in bulk, at Iris & Mill we physically meet with our vendors at personally inspect and choose every diamond and gemstone we use in our jewelry.

You can be sure that every diamond and gemstone you see on our site was personally examined by us and chosen for QUALITY, and not bought in bulk based on a subjective grading system.

Ring size

Need some help finding your ring size? Iris & Mill can help!

Visit our help page linked below with tips on how to determine your ring size. It's easier than you think!

How To Find Your Ring Size

order details

Our jewelry is generally custom made to order. Please allow 24-48 hours processing time before shipping.

Included with every order:

Free Shipping

Free 60-Day Returns

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Certificate of Appraisal

Iris & Mill

family owned for over 70 years

Jewelry has been our business since 1950. We carry on a family passion for crafting superior quality jewelry at unmatched value.

our story

Three-stone engagement ring faq

See the answers to the most asked questions about our three-stone engagement rings.

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