1.25 ct. t.w. diamond engagement ring crafted in 10k white gold features a 1.00 ct. t.w. round cut black center diamond enhanced with round cut black side diamonds and measures 21.50-mm. x 6.00-mm. Colored diamonds are treated to enhance their color. Prong, bezel, and pave setting 25 Black Diamonds Imported Care Clean with a soft bristle brush and warm soapy water. Use gold polishing cloth on gold items.