Certified Stone Offers, October 25, 2026

Stores//Certified Stone

Certified Stone

Up to 2.5% Cashback

Offers updated Oct 25, 2026

2.5%
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Cashback

Get up to 2.5% at Certified Stone

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Certified Stone Overview

Cashback Terms

Earn up to 2.5% cashback on eligible purchases. Certain exclusions may apply. Allow up to 90 days for cashback to be confirmed.

Certified Stone specializes in IGI- and GIA-certified lab-grown diamonds, including colorless and fancy-color options. To save on your purchase, note that standard international shipping costs a flat rate of $30 USD and typically takes 6 to 10 business days after dispatch.

Shipping and returns at Certified Stone

Certified Stone offers a flat-rate international shipping fee of $30 USD, allowing for delivery worldwide, including the USA, UK, and Australia. Items generally ship within 6 to 10 business days following dispatch.

For returns, you have 3 days from delivery to initiate a return on most items, while eligible EU standard or non-personalized products can be returned within a 14-day withdrawal period. Items must be unused, unaltered, and in their original condition to qualify. Remember, you are responsible for the cost of return shipping, which must be secure and trackable.

Certified Stone promo codes and cashback

There are no Certified Stone codes listed right now, so cashback is the saving to focus on.

Shop through Minty and you also earn 2.5% back, on top of any code you use.