La Ronde® Diamond Pendant Necklace
DEMAIN Signature Solitaire Necklace
A timeless emblem of understated elegance, the DEMAIN Solitaire Necklace features a meticulously crafted lab-grown diamond set on a 14k solid gold chain. Our signature open prong setting invites light from every angle, ensuring unmatched brilliance while celebrating ethical luxury.
- Collection: Timeless Classics by DEMAIN
- Metal: 14k Recycled Yellow Gold
- Closure: Secure Trigger Clasp
DEMAIN Lab-Grown Diamond
- Origin: Crafted with precision, grown sustainably in zero-impact environments
- Shape: Round Brilliant
- Color: D-F (for unparalleled purity)
- Clarity: VS1+ (highlighting extraordinary quality)
- Cut: Ideal (maximizing brilliance and fire)
- Dimensions: 4.10mm ± 0.1
- Carat Weight: 1/4ct
Why Choose DEMAIN?
Rooted in transparency and innovation, our diamonds shine as brightly as your values, celebrating beauty without compromise.
We collaborate with state-of-the-art diamond labs and only purchase their best stones.
All our diamonds respect the following requirements:
- Color: D (Colorless)
- Clarity: VVS1+
- Cut: Ideal
- Carat: from 0.1 to 4 carats.
- Polish: Excellent
- Symmetry: Excellent
- Origin: Grown sustainably with limited environmental impact.
Risk-free purchase with DEMAIN®:
- Free Domestic & International Shipping.
- Free 30-Day Returns, product must be returned in perfect condition in its original packaging.


From Paris to New York.
As a Franco-American company born in Paris but rooted in New York, DEMAIN combines tradition with modernity. We offer timeless designs embracing innovation and ethics.


Giving back for Women in the Art.
We are honored to support the National Museum of Women in the Arts, donating 10% of our profits to celebrate and empower women in the arts.