The Constantin Collection

A contemporary engagement ring collection built on architectural form and refined intention.

The Constantin Collection expands an existing signature design, with three new engagement rings and a single wedding band. Together, they form a cohesive suite of jewels, refining a singular design language and conceived as wearable sculpture.

Designed in-house by Naveya & Sloane, we explore the balance between bold form and restraint, offering a modern interpretation of engagement rings grounded in artistry and purpose.

A Contemporary Language Of Engagement Rings

At the heart of the Constantin Collection sits a shared design language. The defining double-band silhouette creates a strong structural foundation, grounding the design with confidence. Suspended above, soft-shaped stones introduce contrast and lightness, appearing to float within the form rather than sit upon it.

Highly polished surfaces and clean, uninterrupted lines guide the way light moves across each ring. Every curve is deliberate. Every detail considered.

The result is a series of engagement rings that feel modern, minimal, and emotionally resonant, designed for those drawn to form as much as feeling.

Inspired By Sculptural Modernism

The Constantin Collection draws inspiration from L’Oiseau dans l’espace, the modernist masterpiece by Constantin Brâncuși. Known for its purity of form, the work captures lightness without fragility and strength without excess.

Brâncuși’s approach to sculpture resonates deeply with our design philosophy. His work feels both bold and enduring, where confidence is expressed through simplicity and every line holds intention. That same spirit lives within this collection.

Each ring is a study in sculptural clarity. Nothing added without reason. Nothing taken away that matters.

Designed With Purpose, Crafted With Care

As with all Naveya & Sloane engagement rings, we define the Constantin Collection through craftsmanship and considered design. Our in-house artisans bring each piece to life with precision, care, and respect for the artist’s hand.

We believe jewellery should hold meaning beyond the moment it is given. These are heirloom pieces, crafted to evolve with your story and endure through time, not because they follow trends, but because they honour form, balance, and intention.

A Modern Interpretation Of Commitment

The Constantin Collection is for those who value design with depth, and for those who see engagement rings not simply as symbols, but as sculptural expressions of love, identity, and shared intention.

A collection that feels contemporary now, and considered always.

Explore the Constantin Collection

Constantin Three Stone

Pricing From

$7,546.00

$7,546.00 Sale

Constantin Oval Solitaire

Pricing From

$5,797.00

$5,797.00 Sale

Constantin Five Stone

Pricing From

$7,631.00

$7,631.00 Sale

Constantin Cushion Solitaire

New Zealand's Most 5 Star Reviewed Jeweller

Jackson Mckellar

I purchased my fiancés engagement ring through Naveya and Sloane and had the best experience. From the start Elle provided great guidance to both me and my partner. Her service was outstanding throughout the whole process. I couldn’t recommend this company more.

from 1098 google customer reviews

Andrew Dagger

The team at Naveya & Sloane were amazing to deal with, never went into the store and meet in person, yet the whole process was so easy and the communication was amazing. Would Highly recommend Naveya & Sloane to anyone!

Brooke Griffiths

The team here at Naveya and Sloane were an absolute pleasure to work with. Fantastic communication and the overall process was smooth and simple. End result was a stunning ring that has surpassed our expectations. Thank you guys so much!

Tim Wareing

Excellent experience choosing a ring here. Got good, practical advice from Elle and had great communication while waiting for the ring to be completed.