Dinosaur Bone an Enduring Classic Also known as Gembone, it is the fossil of animal bone that contains gem quality minerals. Its unique color variations and patterns are caused by minerals such as chlorite, chromium, iron-oxide and manganese that enter the cells during formation. Gembone specimens can be traced back to dinosaurs who roamed the earth around 150 million years ago. Dinosaur bone is a natural material, the pattern and color will vary in every ring. Dinosaur bone is a natural material, the pattern and color will vary in every ring.Titanium offers a unique combination of beauty, comfort and feather-light weight. The 6AL4 Grade 5 Titanium is significantly stronger than commercially pure titanium.Comfort Fit bands have a rounded interior, allowing them to glide on and off over knuckles easier and do not pinch. As the name suggests they sit on the finger more comfortably than other rings. The band may feel slightly larger as Comfort Fit rings are thicker inside-center.Choosing the right Size for your custom ring is as important as the style. Due to its hardness titanium cannot be re-Sized. Part of the customization process for you is a purr-fect fit. After ordering, a sizing ring is created in the same Size and Width. It is made in 3 to 14 days. Upon Size verification production of your artisan created ring begins.Footnotes:Signature for Safe DeliveryComplimentary Engraving Offered; Up to 25 CharactersCrafted Especially for You in Approx. 30 Days (After Size is Verified)Thank You for Your Consideration, We appreciate You. Gorgeous is Always Fashionable... Never Trendy.