Thank you for your question. We manufacture the cabinetry only. Sorry, we do not sell cabinet pulls or knobs, and do not no where the kitchen designer or homeowner purchased their hardware.
It appears that it could be 2 standard pulls that were modified and mitered together. I am not the designer of this project but with the right craftsman this would be a possiblity.
Crystal Cabinets
Kitchens Wow, Inc.