I bought the "7-7.5mm Cultured Freshwater Pearl Necklace, 18" in length" also by Amour (same company as this one) prior to buying this one because this was sold out at the time. This 8-9mm looks significantly better in shape and size. The pearls all look consistently round (whereas the 7-7.5mm one looked off round). You wouldn't think the 7-7.5mm and 8-9mm would look that different but wow, when worn the 8-9mm looks so much larger, rounder, and better in general. Although the description says "high luster," the luster is the same as the 7-7.5mm one which is described as "medium luster." Basically, I wish the pearls had better luster, especially when closely examined. From a couple feet away they look pretty darn good. For ~$21 this is worth it.