7.57ct Octagon Cut Tourmaline 19x8mm Bergeon 5355 Mainspring Winder Set where it came from

where it came from

Closes Certain Case Backs

Bergeon 2729-T11

Black (70mm x 13mm) Tray

Overall length: 300mm

7.57ct Octagon Cut Tourmaline 19x8mm Bergeon 5355 Mainspring Winder Set where it came fromTourmalines are found in a wide range of colours, pink, green, blue, orange, yellow, brown, black, and colourless. Bi coloured Tourmalines are also common and stones which are coloured pink to green are known as watermelon tourmaline. Tourmalines can also display cat's eye chatoyancy, which is caused by parallel fibres running through the stone.; Tourmaline is found in many countries including Madagascar, Brazil, USA, Burma, Sri Lanka, Botswana and