Art Deco Platinum Single Cut Diamond Ring Band Size 6. The ring is in excellent estate condition and ready to wear. The piece is hallmarked "10%IRID. PLAT". The piece is set with approximately .15 carats of single cut diamonds. The diamonds are Vs clarity, G/H color. The ring is a size 6, it measures about 3.5mm at its widest. The ring weighs 2.2 grams