Frequently Asked Questions

In-stock pieces are dispatched within 1–2 business days. Standard shipping takes 5–7 business days and express 2–3 business days after dispatch. Made-to-order and engraved pieces take longer; we will confirm your timeline by email.

Yes. Every Mesmerra shipment is fully insured in transit at no extra cost, and a signature is required on delivery.

We ship to select international destinations. Contact us before ordering to confirm availability for your country. Duties and import taxes are the responsibility of the recipient.

Eligible items can be returned within 60 days of delivery, unworn and with all original tags and packaging. Return shipping is free on eligible returns.

Yes. Exchanges are accepted within 60 days for unworn items in their original packaging, and we cover shipping both ways.

Custom, made-to-order and engraved pieces are final sale unless they arrive with a defect.

Yes. Our diamonds come with grading reports from GIA or IGI, two of the most widely recognised independent laboratories. You can verify a report number on the lab's website.

Yes. We source only from suppliers who comply with the Kimberley Process and provide full provenance for each stone.

Cut, color, clarity and carat weight are the four characteristics used to grade a diamond. Our diamond buying guide explains each and how to balance them for your budget.

Use our ring sizing guide to measure at home, or book an appointment and a specialist will help you find the right fit.

Every piece is covered by our lifetime warranty against manufacturing defects, including stone loss caused by a setting defect. Normal wear, accidental damage and alterations by other jewelers are not covered.

Soak in warm water with a little mild dish soap, brush gently with a soft toothbrush, rinse and pat dry. Our care guide covers storage and everyday wear.