Black Moissanite Stud Earrings, 0.1ct to 2ct, 925 Silver

Black stones work differently from white ones. A colourless stone throws white flash and rainbow fire, while a black one reflects the room in sharp, dark facets and gives a glossy, mirror like shine. That makes these studs a harder, edgier look that sits well on people who find white stones too bright. It is also a colour that goes with everything in a wardrobe, from a suit to a hoodie. The studs are made in 100% 925 sterling silver.

The stone is moissanite, which is silicon carbide rather than glass, and it rates 9.25 on the Mohs scale. That hardness matters on studs, which spend their lives against hair, collars and phone screens. The listing is titled for 0.5 to 2 carats but the options start smaller, at 0.1ct and 3mm, and run up through 0.3ct at 4mm, 0.5ct at 5mm and 0.8ct at 6mm to 1ct and larger. Check the millimetres, because that is what you will see on the ear.

Two choices matter beyond size. The finish comes in gold, silver and black, and the back comes as push back or screw back. A push back is quick to fit and fine for the smaller stones. A screw back holds the post more firmly, and it is the better choice for the heavier 1ct and 2ct sizes, which put more strain on a push fitting and can slowly work loose. If you wear them to sleep or to the gym, take the screw back.

• Stone: black moissanite
• Sizes: 0.1ct 3mm, 0.3ct 4mm, 0.5ct 5mm, 0.8ct 6mm, 1ct and up
• Metal: 100% 925 sterling silver
• Finish: gold, silver or black
• Backs: push back or screw back