THE SIGNATURE ENGAGEMENT COLLECTION
Crafted to captivate, each Signature ring features a remarkable lab-grown diamond in exceptional sizes, set within sculptural, timeless designs.
Made for your story
At MiaDonna, we create elegant engagement rings and stunning fine jewelry with high-quality lab-grown diamonds. Beautiful statements made to last.
MiaDonna Rewards
Join. Shop. Earn. Sparkle.
Join and earn rewards on every order.
Stella McCartney in MiaDonna
See Stella McCartney shining in MiaDonna Lab-Grown Diamonds.
EXCEPTIONAL VALUE EDIT
Discover a limited-time collection from MiaDonna, featuring timeless designs, signature craftsmanship, and unmatched value to make your moment shine.
VISIT OUR BOUTIQUE
Experience fine jewelry shopping at its finest in our flagship Portland, Oregon boutique.
Why Make It Miadonna
MiaDonna, the first in lab-grown diamonds, is B Corp certified and plants a tree with every order—where innovation meets purpose.
Trending Styles
Valentina Marquise Lab Grown Diamond Petite Twist Side Stone Engagement Ring
$ 1,235 (Setting Only)
Miadonna Moments
Explore the finest
lab-grown diamonds
Lab-grown diamonds offer the same beauty and brilliance as mined diamonds without the environmental cost. At MiaDonna, we create engagement rings using premium lab-created diamonds, designed with intention and built to last. Each piece reflects a modern approach to fine jewelry: elegant, meaningful, and made to celebrate life’s most important moments.
Yes, lab-grown diamonds are 100% real. MiaDonna’s lab-created diamonds are made of pure carbon, just like mined diamonds. They have the same optical, physical, and chemical properties, offering the same brilliance, hardness, and sparkle. Think of it like ice from a glacier versus ice from your freezer - different origins, same result. With lab-grown diamonds, you get all the beauty of a traditional diamond, crafted through modern innovation.
Absolutely. At MiaDonna, you can design a custom engagement ring that reflects your personal style and story. Start by choosing your favorite setting, metal, and lab-grown diamond or gemstone. From there, our team will help bring your vision to life making the process effortless, inspiring, and entirely your own. Whether you're designing solo or with a partner, you’ll end up with something truly one-of-a-kind.
Yes. Every MiaDonna purchase includes a Lifetime Manufacturing Warranty. It covers your lab-grown diamonds, lab-grown gemstones, and jewelry against Manufacturing Defects, meaning flaws in materials or workmanship. If a covered issue comes up, we'll repair the piece at no cost to you. If it can't be repaired, we'll remake or replace it. Coverage starts on the date of purchase and applies only to purchases made directly from MiaDonna. The warranty is non-transferable, except from the original purchaser to a gift recipient. It doesn't cover normal wear and tear, accidental damage, loss, or theft. Any repair or alteration done by someone other than MiaDonna or its approved affiliates voids the warranty.
