Whitby Jet Silver Clip Studs NCS23 Qty: 1 2 3 4 5 6 7 8 9 10 Price £125.00 SILVER & WHITBY JET CLIP STUD EARRINGS. Original Whitby Jet, cut & polished & set into oval shaped silver settings, measuring 12 x 10 mm. They have silver clip fittings. Made here at Youngs Jewellers. Whitby Jet