DIAMOND AND RUBY RING IN 18KT WHITE GOLD DIAMOND AND RUBY RING 18kt white gold, embellished at the centre with an antique-cut diamond (defects) of ct. 1.80 approx., surrounded by a row of round-cut rubies of ct. 0.20 approx. and brilliant-cut diamonds of ct. 0.50 approx., hallmarked 750 and maker's mark, size 8/48, gr. 6