The sapphire has no signs of heat treatment and is presumably from Sri Lanka according to the The gem and pearls laboratory certificate.
Inclusions visible to the eye. Light violetish blue.
Diamonds clarity SI/I, colour F/G.
Size 16.25/51.
Total weight 18.9 g.
With certificates from Suomen Jalokivilaboratorio, The gem and pearl laboratory and HRD Antwerp.
Insignificant wear.