DiorSignature B4F by Dior. Color: Black-to-Brown Gradient Tortoiseshell-Effect, Brown-to-Pink Gradient Tortoiseshell-Effect, Size: 54-17-140. Dior eyewear designs aren’t a luxury or a trend; they represent a moment in fashion history. The construction of the Dior frames is about refinement and longevity. It is a very complex procedure, with the process from design to finished product taking up several months to complete. The result is nothing less than an incredible pair of glasses with a unique and outstanding design. Dior likes to reintroduce the intricate decoration inspired by vintage designs into their eyewear collections. Each filigree is produced one at a time, frame by frame, each detail carefully considered. The jewelry-like accents are those attributes that telegraph to customers they’re holding frames from the legendary Dior brand. By choosing Dior frames, you get nothing but a trendy look that oozes timelessness.