SIGNATURE GIFT WITH PURCHASE
FREE 4 ctw Certified Stud Earrings with every Signature Engagement Ring Purchase*.
Shop Now *Terms apply.THE HOLIDAY GIFT GUIDE
Your guide to iconic gifting — from timeless lab-grown diamond favorites to personalized pieces that make every moment shine.
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.
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The Signature Collection
Introducing MiaDonna’s Signature Collection—vivid lab-grown diamonds set in modern, sculptural designs. Bold, brilliant, unforgettable.
For a limited time, enjoy FREE 4 ctw Certified Diamond Stud Earrings with every Signature Engagement Ring Purchase*.
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.
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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, regardless of item type or price, includes a Lifetime Manufacturing Warranty covering your lab-grown diamonds, lab-created gemstones, and the craftsmanship of your jewelry. This Lifetime Manufacturing Warranty is effective from the date of purchase, only for purchases directly from MiaDonna, and is non-transferable, except for transfers from the original purchaser to a gift recipient.
