Species: Natural Corundum Variety: Sapphire Color: Light Blue, Blue Shape: Round Mixed Cut Total Weight: 2.55 ct. Measurements Approx Ø: 2.8-3.1 mm. Transparency: Transparent Treatment: Heated Origin: Sri-Lanka "Treatment and origin declarations are the opinion of the seller." Shipping with registered tracking number. Poczta Polska. The delivery time in Europe is 12-31 days, while in Asia and America 15-45 days, usually the delivery time is much shorter, but it always depends on the postal employees. Please always track your parcels, and pick them up from the post office of your city if the postman did not deliver the parcel to your home. Sites for tracking the parcel: https://emonitoring.poczta-polska.pl/?lang=en https://parcelsapp.com/ https://m.17track.net/en/track If you have any questions, please send me a private message and I will answer as soon as I can.