Like New! David Yurman Chatelaine Stud Earrings-Silver Diamond and Black Orchid-Comes with new David Yurman Pouch (pictured) Black orchid is a dark blue/navy blue color (lavender amethyst backed with hematine). Beautiful eye catching earrings. These have John Hardy Sterling Silver earring backs on them. You can buy David Yurman earring backs for $5 on the DY site. Sterling Silver, Pavé diamonds, 0.29 total carat weight, Black Orchid center stone 5.00 total carat weight 9mm Earrings total 11.7mm. Châtelaine® represents a perfect fusion of Sybil and David Yurman’s combined love of art – the marriage of a sculptor and a painter, graceful form and vibrant.