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We understand the worry about buying custom rings online. There are 40+ sizes to choose from and it is a stressful task.

We make the process bulletproof by sending you a Free Size Kit

If you used our FREE Sike Kit your first resize is free of charge, return label is also included.

If you decide to opt out of our size kit service then your first resize will be 25% the original cost of your ring.

Yes, please contact us below to make sure we have the material available for your size.


Every ring that contains delicate material such as the wood, deer antler and minerals is protected with resin which is not only waterproof but also chemical resistant which is very important if you intend to wear 24/7. 

We offer free refinishing service to all our rings. You can send your ring back to us anytime you would like and we will polish it and bring it back to its new look. Deep scratches cannot be removed but we do offer repair service if needed. Shipping cost are not included in this free service.

Accidents happen, if your ring needs repair conact us below. Please include a description of the damage to allow us to quote accordingly for the repair. Photos may be requested.


We offer free worldwide shipping. Upgrades are available for both domestic and international orders.

For international orders we strongly recommend upgrading your shipping service to UPS to avoid any delays.

Sesto Synergy is not responsible for any delays or lost packages during transit.

No, any customs fees and taxes are the responsibility of the customer. Our upgraded shipping options are only to allow for a faster and more reliable service.


Yes, all of our dinosaur bone rings are made with real dinosaur bones!

Yes, feel free to reach out to us through our custom page for your request. We will do our best to integrate your sentimental material in your ring!

Yes! Check it out our double ring boxes here.

Carbon fiber is extremely lightweight but strong at the same time. You can easily forget that you are wearing a ring after a few hours. If you are looking for a heavier ring we would recommend steel or any precious metals like gold.