Introducing the Nuvinty Index: rating luxury on sustainability

Update 6 October 2026: we have withdrawn the 0–5 ratings described below. The Nuvinty Index is now a quarterly top 10 of notable sustainability moves by luxury brands, each linked to its source. See the latest edition. This post is kept for the record.

Updated 18 September 2026: the Index now uses primary sources only (brands' own reports, B Corp records, certification registries and science-based targets), shows the evidence and review date for every brand, and no longer uses other organisations' ratings as inputs. Scores have changed as a result. See the methodology, and corrections to request a review.

At Nuvinty, we've always believed that great style and a clear conscience shouldn't be at odds. Luxury is, at its best, about pieces made beautifully, to last, and to be passed on. So as we bring together the finest new and pre-loved designer pieces in one place, we wanted to give you a simple way to see how the brands we list compare on published sustainability evidence.

That's the Nuvinty Index: a 0–5 sustainability rating for the brands we feature, shown as a little leaf 🌿 beside their name.

Why we built it

Sustainability claims in fashion can be noisy and hard to read. The Index cuts through that. It's our editorial view — informed by respected public sources — of how seriously a brand takes its impact, so you can factor it into your choices without doing hours of research yourself.

How we score

Every rating weighs five things:

• Responsible sourcing — where materials come from, and whether they're certified (Fairmined gold, RJC, and the like).
• Materials & circularity — recycled and lower-impact materials, and design that lasts, repairs and resells rather than ends up as waste.
• Transparency — how openly a brand reports its supply chain and impact.
• Commitments & progress — credible targets, and real evidence they're being met.
• Certifications — independent verification such as B‑Corp status.

Every level is backed by a cited primary source: the brand's own reports, B Corp records, certification registries and the Science Based Targets initiative. Where we can't find public evidence, we say so rather than scoring it.

How to use it

Look for the 🌿 leaf next to a brand as you browse. Want the full picture? Visit the Nuvinty Index to see every brand we've assessed, the exact criteria, and the evidence and sources behind each level — then shop the pieces you love, knowing the story behind them.

This is just the beginning. We'll keep expanding the Index as we add brands, and we'll be sharing more of the labels and projects moving luxury forward — right here in the Journal.