According to JewelryWise.com, here is some information about warranties in the jewelry industry:

Understanding the warranty or guarantee. A jewelry warranty or guarantee usually covers the replacement of damaged or lost diamonds or certain gemstones for a lifetime. Some jewelers offer a warranty or guarantee on the diamonds or gemstones as part of the purchase price, while others may offer it at extra cost.
— http://www.jewelrywise.com/engagement-wedding/article/warranties-matter-looking-for-the-best-lifetime-value-for-your-engagem

We believe that a warranty should be just that:   a warranty. Here is our policy on warranties for your custom jewelry:

Unlike buying something online we offer a free lifetime warranty for normal setting repair, stone replacement, ring sizing and cleaning.

Enough said. Be happy. Love your ring. 

Joe Maughan