Let her know she's forever adored with this beautiful lab-grown diamond infinity necklace. 10k yellow gold with white rhodium round-cut lab-grown diamonds graduate in size as they sweep along the pendant a single round-cut lab-grown diamond glistens at the base independently certified with a total lab-grown diamond weight of 3/4 carat 16- to 18-inch adjustable cable chain; spring ring clasp from the kay lab-grown diamonds collection