Natural stone red garden quartz ring size approximately: 10mm * 12mm * 8.5mm thick; Ring size: Adjustable free size. ※Recommended for free size rings: ● Those unsure about ring size, "I don't know my ring size clearly..." ● Rings become tight due to swelling at night; Metal material: Alloy silver. Weight approximately: 2.75g, with a bag, product number A4633; Red garden quartz can be said to be a special variation of a type of white crystal. When white crystal is about to form, red craters and minerals appear inside. Therefore, these white crystals exhibit various shapes and fog-like layers. Red garden quartz is a type of phantom quartz. Because a large amount of inclusions gather inside like this, we often call it a "treasure basin." ■The color of the photo may look slightly different from the actual product depending on the shooting environment. Instant purchase OK. Thank you!