
The Story Behind MM
I didn’t set out to build a jewelry empire. I started designing because all jewelry looked the same and most fine jewelry felt out of reach.
For twenty years, I found exceptional people: leaders for the biggest names in tech and Top Secret-cleared talent for space and national security. Now I apply the same eye to exceptional diamonds and natural gemstones. Most pieces are my own designs. Others, like those in our Holiday Sale, are curated finds I fell in love with. Every stone is chosen with the same eye. My original designs were called too difficult to make, which only made me want to make them more.
Originally from Porto, l now live in South Florida with my husband, two teens, and our beautiful Great Dane, Pepper. When we’re not working or walking Pepper, we’re usually out on the boat or traveling through Europe.
I may have started with a small collection, but there’s more on the way, including something for the four-legged members of the family. Sign up for our newsletter to get pre-sale announcements and news of new collections. 🐆
Marta McCue
In-House Originals
The Vow Collection


Fast. Fierce. Elegant.
The Cheeetah
My spirit animal. My right-hand statement piece. A sculptural cheetah wrapped around the finger, with enamel spots and vivid natural gemstone eyes. Available in 18K Gold or Platinum.
Two pear-shaped diamonds. One infinity.
PEARFINITY®

Currently working on:
PAVÃO
A plume caught in the moment of its unfurling.
Hand-fabricated in 18K European yellow gold with diamond pavé tracing each quill, the neckpiece is articulated to follow the collarbone and shoulder, equal parts armor and adornment. A one-of-a-kind commission. No two will ever exist.
Blue and teal sapphires, blue topaz, tsavorite garnets, emeralds, and diamonds.
"Diamonds are not a luxury, they are a lifestyle."
- Marta McCue
Coming soon


















