- Corundum (Var: Sapphire)
- Thumbnail, 2.6 x 0.9 x 0.7 cm
- Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka
Yellow sapphires are rare from the famous gem deposits of Ratnapura, Sri Lanka, but this specimen is particularly rare, because sapphire doublets are extremely rare from this famous locale. The gemmy and lustrous tapered crystals are pristine and have classic, very well-striated crystal faces. Weighs 13.82 carats.