14K Gold Smoky Quartz Slide. 10.5mm(7/16 inch) Wide and 6.75mm(1/4 inch) Long. 7-2mm Round Smoky Quartz.. 14K Gold Smoky Quartz Slide. 10.5mm(7/16 inch) Wide and 6.75mm(1/4 inch) Long. 7-2mm Round Smoky Quartz.Fine styling and finish from our Classic Slide Collection - Fine gems set in 14K gold with solid back. Hand made and finished. Add this to your slide bracelet. Made in the USA.