The card base is a grey cardstock.
I started with 3 strips of washi tape that I flagged the ends of. They are all from Doodlebug in their Swiss Dot Pattern. The colors are called Swimming Pool, Beetle Black, and Bubblegum.
After I adhered the strips I created some black faux stitching lines around them with my Basic Black Stampin' Up marker.
The top 2 corners are rounded at 1/2 inch.
The stamps are from Stampin' Up's Elementary Elegance set.
The black bling has been in my stash a long time and I don't know the brand.
The mirrored gems are all from Irock. I just scattered them around until I liked the look.
Have a crafty day!