Shop › Disc + Bar Diamond Drop Studs Image 1 of 2 Image 2 of 2 Disc + Bar Diamond Drop Studs $380.00 READY TO SHIP14k yellow gold, 1.5m white lab grown diamond.15×7.5mm. 2.5g. Add To Cart Added! READY TO SHIP14k yellow gold, 1.5m white lab grown diamond.15×7.5mm. 2.5g.