18k yellow gold. Set in the center is a 1.57carat princess cut diamond which displays K color and SI2 clarity. There are also eighteen princess cut diamonds which weigh a total of 2.25 carats and display G color and SI1 clarity. Weight is 12.5 grams. Provenance: Property of an Adrian, MI private collector.Appraisal from International Diamond on file. 995 S. Main St. Adrian, Mi. 49221. Please note all lots show signs of wear commensurate with age and use, and the lack of a statement regarding condition does not imply the lot is in perfect condition or completely free from defects or the effects of aging. Unless otherwise stated, all information provided is the opinion of DuMouchelles’ specialists.