The tall white Doric columns that flank the entrance to Diamond Salon and Spa give a not-so-subtle hint to the similarly stately interior. This Chestnut Hill establishment, flowing with natural light from the large, curved front windows, keeps an understated tan-and-cream color scheme, with lots of comfortable seating and a few leafy touches. Appealingly room, Diamond Salon and Spa provides a waiting area, a section dedicated to manicures and pedicures and a massage/waxing space, discretely tucked away behind doors. Diamond Salon carries Dermalogica Skincare products and the Youngblood mineral makeup line, which the salon uses exclusively for its facials and applications. Appointments are welcomed here seven days a week, with limited walk-in availability.