Set of 17 screwdrivers in box, crosshead 1.4 to 3mm, flathead 0.5 to 4mm Approved scales - regular lines Or it could be Synthetic

Or it could be Synthetic Sapphire

this is something that is very easy for you to do yourself with a xxg weight (not supplied)

That means you must first test the stone on a good quality diamond tester first - YOU GET ONE OF THESE WITH THE ARETE

A bit over-the-top but truly amazing

which makes the magnification lower so that you can see (nearly) the width of a column - see the first photo

Set of 17 screwdrivers in box, crosshead 1.4 to 3mm, flathead 0.5 to 4mm Approved scales - regular lines Or it could be SyntheticDetails How many times have you failed to undo a screw (or damaged it!) because you dont have the exact size of screwdriver? This is a stunning quality set of 17 screwdrivers in a fitted wooden box, each with two spare tips, all clearly labelled. Crosshead (mm): 1. 4, 1. 6, 2. 0, 2. 5, 3. 0 Flathead (mm): 0. 5, 0. 6. 0. 7, 0. 8, 1. 0, 1. 2, 1. 4, 1. 6, 1. 8. 2. 0, 2. 5, 3. 0 See my short description of screw types for more information.