Brilliant Earth
US: one complimentary resize within 60 days; eligible in-range rings can qualify for up to one year. Most eligible designs can be exchanged within 30 days. A complimentary ring sizer is offered.
Official policy (opens in a new tab)Ring resizing, return and sizer policies
Use this as a starting point before a surprise or online ring order. Policies vary by country, collection, metal and ring design, so the official product and policy page always wins.
Policy summary
James Allen
The former James Allen guide could not be verified on 2026-10-20; the sizing URL redirects to Blue Nile. Historical sizing and free-resize terms are not a current promise. Confirm the exact ring and order with the retailer.
Official policy (opens in a new tab)Blue Nile
Blue Nile uses US sizes. Choose from the sizes available for the specific ring and confirm fit with its sizing guide. The current web policy offers one resize within six months on eligible rings; its printable guide still says one year, so confirm the terms for your order.
Official policy (opens in a new tab)Tiffany & Co.
Tiffany states that engagement-ring purchases receive complimentary resizing.
Official policy (opens in a new tab)Zales
Zales lists ring resizing as a repair service. Bring the ring to a store for assessment of the work and any warranty or paid protection-plan coverage. Confirm costs and eligibility for your item.
Official policy (opens in a new tab)Mejuri
The reviewed return terms do not state a complimentary resizing or free-sizer promise. They list free 30-day returns for eligible unworn items in the US, Canada, UK, Australia and Germany.
Official policy (opens in a new tab)Before you rely on a policy
Can I rely on a retailer policy to guess a ring size?
No. A resize or exchange policy is a fallback, not a sizing method. Measure first and confirm a non-resizable, engraved or expensive ring before ordering.
Why does the table not show one universal resize promise?
Eligibility differs by retailer, country, ring design, metal, size change and previous alterations. The linked official policy controls.