Yes, girdle thickness can have an effect on the price of a diamond. The girdle is the thin outer edge of a diamond that separates the crown (the top portion of the diamond) from the pavilion (the bottom portion of the diamond). The thickness of the girdle can impact the diamond's appearance, durability, and weight retention. A diamond with a thin girdle is more fragile and susceptible to chipping or breaking, so it may be priced lower. On the other hand, a diamond with a thick girdle is more durable and weighs more which results in a higher price. However, girdle thickness is just one of many factors that can impact the price of a diamond, so it is important to consider all aspects of the diamond's cut, clarity, color, and carat weight when evaluating its price. If you have any other questions about this, we would be happy to explain it to you over the phone or in person.