Diamond Essence 14k solid cufflinks simulated Diamond solitaire

These cufflinks were my father’s. He purchased them in November 19 91. Although I do not know the carat size, I have tried to take photos that will show the size. The ruler shows approximately 1/4 inch wide, which is roughly 6.3 mm. The weight of the cufflinks is 12 g. These were stored in the original box and a smoke free home.