You are looking at a custom made Elegant Sierra Pen Chrome & Sat Chrome Twist Pen. This one is dressed in a Diamondcast Nebula blank. Diamondcast blanks have actual diamond dust embedded in the resin. The sparkle cannot be matched! Very unique looking pen. The pen operates open and closed by twisting the rear section. As with all my products the one in the photo is the one you will receive. Pen uses Parker style refills.
As with all products colors may very from computer to computer, so the photo may not be the exact color of the piece.