Regal Swiss blue topaz is the centerpiece of this gorgeous ring. It has white zircon accents for added sparkle. It's a very heavy ring that has an art nouveau style. It has been lovingly cared for and will last for generations to come. The blue topaz is approximately 6 carats. There's 18k yellow gold intertwined in the lacy pattern framing the setting. It was designed by Michael Vallitutti for his Gems En Vogue collection. Size 8. Stamped NH 925 About the Designer: Michael Valitutti designs jewelry under the brand Gems en Vogue, which features European-inspired pieces with genuine gemstones set in sterling palladium alloy and 18K gold. His jewelry is inspired by art movements like Art Deco and the French Renaissance. Valitutti has a graduate Gemologist diploma from the Gemological Institute of America (GIA)