Serve in style on and off the court with this limited-edition lab-grown diamond tennis necklace from the zales x prince collection. 14k white gold dazzling lab-grown diamonds line the classic tennis necklace the tennis ball charm - removable with a spring-ring clasp - shimmers with dainty lab-grown diamonds and 18k gold-plated detail lab-grown diamonds; f colour/si2 clarity 4. 23 cts. T. W. Of lab-grown diamonds 18. 0 inches; tongue and groove clasp exclusively at zales