Diamond Stacking Rings | M 1/2Warm coloured natural diamond stacking rings by Natalie Vernazza. With rich hues from champagne to cognac, these ethically sourced diamonds are set in a contemporary mixed metal design, with voluptuous 9ct gold bezels and satin finished sterling silver ring bands. Worn together or separately, they are understated and quietly luxurious. Warm natural diamonds are an increasingly popular choice, indicating authenticity and integrity. They have a natural