Charles Winston white CZ solitaire 18k gold over sterling silver stud earrings

These earrings are pretty much brand new as they don’t show any signs of ever have being worn before.  18k yellow gold plated over sterling silver prong setting. Jumbo gold over sterling backs included. Big white cubic zirconia stones. I believe these are close to 10ct in total but couldn’t say for sure. 925 Reasonable offers considered