Gorgeous clear natural faceted Aquamarine stones, at the lower end of the quality spectrum. They are all cloudy, included or internally fractured to some extent, but still have a light blue colour to them.
These are lovely stones and will be perfect for earrings, rings, and necklaces. I personally think they work quite well with silver coloured metals, as a pale colour match.
Beryl is a reasonably hard mineral that is often used as a gemstone - variants include Aquamarine, Emerald, Heliodor and Morganite. It is suitable for jewellery use, although not as hard as Corundum (Ruby, Sapphire) or Diamond.
Because these are calibrated stones, you don't need to worry too much about sizing. They will be very close to 5MM, for example; they are not hand cut free forms. There is a little difference in every stone, 5% or so.