Moissanite Stud Earrings, 0.3ct to 7ct in 925 Silver

This listing covers the widest spread of studs we stock, from a 4mm stone you barely notice to a 12.5mm stone you cannot miss. Each pair has one stone per ear on a plain post, and the weight shown is for each stone rather than for the pair. That is worth checking when you compare against other listings, because many sellers quote the pair total and make a small stud sound larger than it is.

The stones are moissanite, so the hardness and fire are the same at every size. It measures 9.25 on the Mohs scale against diamond's 10, which means a daily pair keeps its polish for years. Its refractive index of about 2.65 is higher than diamond's 2.42, so you see more coloured flash under moving light. What changes with size is how visible the stone is, and how much weight your lobe carries through a day.

Read the millimetres. The 4mm at 0.3ct and 5mm at 0.5ct are discreet daily pairs. The 6mm at 0.8ct and 6.5mm at 1ct are the most popular and sit comfortably on most ears. The 8mm at 2ct is a bold statement. Beyond that the 12.5mm at 7ct is a showpiece, and it feels heavy, so wear it for an evening and not a week. All sizes come in white, rose or yellow gold finishes on 925 sterling silver.

• Stone: moissanite, weight shown per stone
• Sizes: 4mm 0.3ct, 5mm 0.5ct, 6mm 0.8ct, 6.5mm 1ct, 8mm 2ct, 12.5mm 7ct
• Metal: 925 sterling silver
• Finish: white gold, rose gold or yellow gold
• Style: stud earrings on a post
• Fitting: butterfly back