| Brand | Ruby |
|---|---|
| Type | Genuine Lab Grown Ruby |
| Size | 4 mm |
| Quantity | 3 |
| Material | Corundum |
| Country of Origin | United States |
| Handmade | Yes |
| California Prop 65 Warning | no |
Check the listing for details. 4mm Ruby Pearl Lab Made High Temp (Pack of 3) - Quick Ship. Condition: New, Made in United States. Listed at 2.89 USD. PREMIUM SYNTHETIC RUBY MATERIAL — Made from high-grade synthetic ruby, these balls are solid, non-porous, and exceptionally hard, ensuring long-lasting performance and a brilliant, scratch-resistant surface.