This ingenious necklace of 18K gold features seven interchangeable centerpieces, one for each day of the week. They are easily pushed out from the back and replaced with another color which suits your mood or outfit of the day. The center is surrounded by 24 full-cut diamonds with an estimated total weight of 1.72 carats; the chain measures about 3/8” in overall width. The centerpieces are lapis, mabe pearl, malachite, turquoise, tigereye, black onyx and coral.