Allow us to make the benefits of this machine ‘crystal’ clear: for the cost of a single professional microdermabrasion treatment, you can have your own at-home device to use for years to come. From the developers of the $10,000 machines found in exclusive spas and doctor’s offices, this mini version is the first to give you at-home access to the same age-fighting crystal and vacuum technology that’s considered the gold standard in professional exfoliation. So if you’re watching your wallet as closely as your wrinkles, we say forget diamonds: crystals are a girl’s best friend.