This is an Alexandrite And Ruby Wedding Band Pave Set ,Gemstone can be replaced by any other gems and can be customized in any size/shape. White/Rose/Yellow gold is available,14k &18k is available.All the materials I use is natural gemstones ,natural diamonds and real gold.You can get it verified in your local jewelry store or GIA.-------------------------------------Product SpecificationsSterling Silver, 10k/14k/18k gold, PlatinumStones: The lab treated Alexandrite and Ruby weight:0.33ctBand width approx 1.8mm(Top)Band width approx 1.0mm(bottom)Setting: Pave Set.Half eternityComfort Fit-------------------------------------Other Main ring/Matching band can also be made for the gemstone ring.-------------------------------------