3/8 ct REAL Diamond Solitaire ( range from .37 to .44ct). These are a great size, they price like 1/3ct diamonds and look almost as large as 1/2ct diamonds! 14K white gold setting and 18 inch box chain. Both hallmarked 14K Bright Beautiful Diamond, Minimum I1-I2 Clarity and Fine H-I Color Each pendant is tagged by the American Gem Society with the unique number on the included certification card. Satisfaction Guaranteed: We are so sure you will love this pendant that if for any reason you don't you may return it no questions asked, and with free return shipping ( domestic US only ) for up to 30 days.