Introducing Convex by Shimell & Madden: 5 Modern Engagement Rings for lovers of Sculptural Minimalism
Sculptural, refined, wearable: The newest additions to the Convex collection by Shimell & Madden are now live on The Cut London.
The first drop from the new Convex Collection brings together five sculptural diamond engagement rings crafted in mirror-polished 14k yellow gold, demonstrating the pair’s signature blend of architectural precision, geometric harmony, and exceptional craftsmanship.
Architecturally Inspired Design
Known for their meticulous approach to geometry and form, Shimell & Madden draw inspiration from classical Greek architecture for the Convex collection. Each piece reinterprets the flowing curves of ancient architraves and decorative mouldings, resulting in architectural gold rings that feel both contemporary and timeless.
Ribbed fluting references carved stone, while mirror-polished surfaces echo the luminosity of marble. For clients familiar with Shimell & Madden’s precise design language, these pieces extend their ongoing exploration of rhythm, symmetry, and proportion.
A New Direction in Craft
The Convex collection also marks a shift in Shimell & Madden’s making process. For the first time, the designers have embraced lost-wax casting, moving beyond their signature open wirework into more sculptural, tactile territory. This allows for deeper volume, smooth convex curves, and jewellery with a distinct physical presence.
Crafted in rich 14k yellow gold, each ring carries the warm, buttery tone that Shimell & Madden are known for, perfect for anyone seeking modern fine jewellery with an architectural sensibility.
Sustainable, Ethical, and Visually Striking
These first five rings feature lab-grown diamonds sourced from a transparent, certified producer operating with fair-labour and sustainable practices. Shimell & Madden’s choice of responsibly produced stones supports their long-standing commitment to ethical making, while allowing for strong visual impact and larger carat weights.
For clients seeking ethical lab-grown diamond rings with a truly design-led point of view, Convex offers an elevated and thoughtful alternative.
Explore the Rings by Shimell & Madden
Oval Mirror Column Ring
2.55ct Oval lab-grown diamond, 14ct yellow gold
A bold architectural form showcasing a luminous oval diamond. One of the most striking Shimell & Madden lab-grown diamond rings in the collection.
Pear Mirror Contour Ring
1.52ct Pear-shape lab-grown diamond, 14ct yellow gold
A refined balance of curves and structure, perfect for admirers of pear-shaped lab-grown diamond rings with contemporary detailing.
Marquise Mirror Flute Ring
1.02ct Marquise lab-grown diamond, 14ct yellow gold
Ribbed fluting wraps around a sleek marquise stone, offering a sculptural take on a classic silhouette; a signature of Shimell & Madden’s architectural approach.
Round Mirror Nephros Ring
1.02ct Brilliant-cut lab-grown diamond, 14ct yellow gold
Smooth contours and mirrored surfaces create a modern, minimalist version of the round diamond ring.
Oval Mirror Ovolo Ring
1.32ct Oval lab-grown diamond, 14ct yellow gold
Elegant proportions inspired by classical mouldings, crafted with Shimell & Madden’s quiet, precise attention to geometry.