A Brighter, Whiter Smile in Just 1 HOUR.The No 1 Cosmetic Teeth Whitening Technology. Your Diamond Therapist: Lucie BentleyUsing the safest and most advanced Teeth Whitening technology for cosmetic dentistry, your technician Lucie Bentley operates teeth whitening treatments in the comfort of your ownhome or at salons in the North West.The Diamond teeth whitening system uses cold light technology and a concentrated beam of blue light to accelerate the process while the specially formulated gel works to whiten the teeth, restroring them to a brighter white.