Needed: Graphic designer for sketch project -- 2

I am constructing a catalogue based on jewellery, for each heading page (Diamonds, Rubies, Sapphires etc) I need a sketch of a relevant 'cut' of a stone. E.g. A diamond we'd use a 'brilliant-cut' sketch, a ruby I'd use a 'cushion-cut' these are terms to describe the shape of a stone. Each are very symetrical and proportionately quite detailed (lots of facets on a stone) which need to be accurate but we'd like the images to be drawn by the same person, look pretty and show stones at a slight angle - so its mathematical too.
Currently we need 7 images drawn.
1 - Brilliant cut diamond
2 - Cushion cut diamond
3 - Oval cut diamond
4 - Emerald cut diamond
5 - A signet ring
6 - A watch movement sketch, doesnt have to be complete we can provide images to base from
7 - A heart-cut diamond