1.57ct Cushion Cut Emerald 9x7mm Bergeon 6799.06 Membrane Box; Set of 6

1.57ct Cushion Cut Emerald 9x7mm Bergeon 6799.06 Membrane Box; Set of 6Emeralds lustre is vitreous, it rates 7. 5 8 on the Mohs scale but because of their many inclusions they are not ideal for everyday jewellery, unless they are set into pendants or earrings with secure settings that protect the stones. Columbia is known for producing the highest volume of emeralds and most importantly the finest ones. Other significant sources are: Zambia, Brazil, Zimbabwe, Afghanistan, India, Madagascar, Pakistan and Russia; Stone

from mantel clocks to grandfather clocks

Optical System: Finite Biological Microscope

Stone Size: 21x20

The Swansdown mops are resilient when in use

Well protected and assorted in a plastic box for convenient use and storage

Ideal for close-up precision work with two way lighting system

Place Point on Surface

It is a professional tool for mini nuts drilling as small bench vise and mini vice

Internal Ø38mm

- Perfect  for home

3 modes for date display and 2 modes for week display

Fine (Ø100 x 25mm) Bufflex Wheel