100% glamour. No ethical compromises.

Oscar Massin is setting a new precedent for fine jewelry.

Inspired by haute joaillerie from the 19th century. Created by renowned high jewelry designer Sandrine de Laage. Made with climate-neutral, fully traceable lab-grown diamonds – top 1% graded for clarity and color.

5 REASONS EDITORS LOVE OSCAR MASSIN


"In the 1800s, Oscar Massin made jewelry for queens. Now a pioneer of 19th-century French jewelry is making a 21st-century comeback."
NEW YORK TIMES
Our premiere fine & engagement collections revive the grand joaillier's signature lacework and diamond setting techniques.


"The best lab-created earrings that seriously sparkle."
US WEEKLY

Our lab-grown diamonds are exquisitely cut, with a bright white luminosity. As soon as you put our jewelry on, you'll see the difference in how our pieces capture light.

"With diamond and gold options, why not buy a whole set?"
VOGUE

Mix and match metals and carat weights across collections for the most stunning earring, bracelet, pendant or ring stacks.


"A balance of special-looking and everyday wear...even better when its sustainably made."
WALL STREET JOURNAL

We only use solid recycled 18k gold and platinum - never plated or vermeil. With proper care, your jewelry will go wherever you go and never tarnish or degrade.

Founded by Cartier and Harry Winston alumni, created to do better.
Oscar Massin is the first ethically clean luxury jewelry brand – beautiful design, impeccable craftsmanship, no compromises.

WELCOME TO THE HOUSE OF MASSIN

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