AUTHENTICATED AT THE SOURCE
Every ZEVERRA stone is accompanied by a metal certificate card — brushed champagne gold stainless steel, engraved with a unique serial number and QR code.
This is not a paper document. It is a permanent record, designed to last as long as the stone it certifies. Each certificate carries the stone's material composition, hardness, refractive index, and dispersion data. The QR code links directly to our registration system, where you can activate your lifetime guarantee and verify your stone's authenticity at any time. We issue our own certificates because we control the entire process — from crystal growth to final cut. No third-party intermediary can authenticate a ZEVERRA stone with the precision we can. The serial number engraved on your card is your direct connection to our archive.
Your certificate card is credit-card sized, 0.8mm brushed stainless steel, and designed to be kept alongside the piece it accompanies. It is not disposable — it is part of the ownership experience.
Every ZEVERRA stone carries a lifetime guarantee against loss of brilliance, clouding, scratching, and degradation. We guarantee this because the science allows us to. At 9.25 Mohs, a ZEVERRA stone resists the micro-abrasions that dull lesser gemstones over years of daily wear. Unlike glass-based crystals, which develop surface haze within months, a ZEVERRA stone maintains its optical clarity indefinitely.
Your guarantee is activated by scanning the QR code on your ZEVERRA certificate card and registering your unique serial number. Once registered, your stone is covered for life — no time limits, no renewals, no fine print.
Your lifetime guarantee
WHAT IS COVERED
- Loss of brilliance or optical clarity
- Surface clouding or hazing
- Visible scratching under normal wear conditions
- Any measurable degradation in the stone's refractive
- or dispersive properties
WHAT IS NOT COVERED
- Physical damage resulting from impact, crushing, or extreme force
- Damage to the setting, metalwork, or chain (these are covered by the jeweler's warranty)
- Loss or theft of the piece
- Damage caused by deliberate misuse
HOW TO MAKE A CLAIM
Contact us at guarantee@zeverra.com with your registered serial number and a description of the issue. We will assess the stone and, if covered under the guarantee, replace it at no cost.
