Obviously crystals don't usually come in standard sizes, so with many of the more popular varieties, there will be variations available that may be cheaper or more expensive, bigger or smaller. Details of the more popular crystals this applies are as follows:
Black Tourmaline - pieces range from 50p for a tumble stone up to £6 for a 57g piece. There are pieces available which cost £2, £2.50, £3.50, £4, £5 and £6.
Amethyst points- pieces range from £1 for a small point weighing abt 9g and 3.5cm in length up to £4 for 6cm x 4 cm - approx 67g in weight
Citrine points - these range from £2 up to £5 - (smaller pieces cost £1.5 p&p whilst larger pieces costs £2 p&p)
Rose Quartz pieces - A large selection. Tumblestones are 50 pence each, and the unpolished pieces start from £1 and go up to £4.
Shiva Lingams - pieces are either £2 (as in the shop), £1,50 or £1
Desert Rose - vary in price between £1 and £2 depending on size and weight.
Moldavite - is sold by the gram - My price is £4 per gram plus £1.50 for postage. I currently have pieces available ranging between 1.5 grams and 6 grams. If you are interested in buying moldavite then please email me with your requirement and I can email you more details of the pieces available together with a photo.