The '10k Yellow Gold Round Diamond Square Pendant 1/8 Cttw' boasts a precious metal composition of 10kt yellow gold, with a weight of approximately 0.726 grams. Featuring a round-shaped diamond as the primary gemstone, the pendant shines bright with a total carat weight of 1/8. The diamond is securely held in place by a prong-set placement and has a color rating of G-H and a clarity rating of I2. With no additional gemstones present, the focus remains solely on the gleaming diamond centerpiece.