THE DUKE - GOLD & CARBON FIBER RING. MAKE IT A ROYAL WEDDING. Be the Duke of your house. This 70/30 split ring strikes a delicate balance with an offset strip of 14K yellow gold and the jet black appearance of filament wound carbon fiber. Handmade from 14K yellow gold and pure carbon fiber in Salt Lake City, UT. Build Time and Shipping Information: Please allow up to 3 weeks for this ring to be built. FREE standard domestic shipping on all rings! Location rate based international shipping! (International customers are required to pay any associated import taxes.)