Numbers are approximate, stones are natural and vary in shape, density and size. Expect some overlap.

Sold By: 1 kg	Number Of Pieces	Unit Size
Tiny	150 to 240	2mm to 10mm
X-Small	100 to 160	1/8" to 1"
Small	50 to 100	1/2" to 2"
Medium	20 to 50	1" to 2"
Large	8 to 20	1 1/2" to 3"

 

Sold By: 500g	Number Of Pieces	Unit Size
Tiny	80 to 150	2mm to 10mm
X-Small	50 to 80	1/8" to 1"
Small	22 to 45	1/2" to 2"
Medium	10 to 25	3/4" to 2"
Large	5 to 10	1" to 3"

Sold By: 1 lbs	Number Of Pieces	Unit Size
Tiny	68 to 110	2mm to 10mm
X-Small	45 to 73	1/8" to 1"
Small	22 to 45	1/2" to 2"
Medium	9 to 23	3/4" to 2"
Large	3 to 9	1" to 3"

 

Sold By: 250g	Number Of Pieces	Unit Size
Tiny	40 to 75	2mm to 10mm
X-Small	25 to 40	1/8" to 1"
Small	13 to 25	1/2" to 2"

Exception for denser stones:

Hematite, Pyrite, Malachite, Garnet, Lodestone, Copper + others

Sold By: 1 kg	Number Of Pieces	Unit Size
Small	40 to 80	1/2" to 2"
Medium	16 to 40	1" to 2"
Large	6 to 16	1" to 3"

 

Sold By: 500g	Number Of Pieces	Unit Size
Small	20 to 40	1/2" to 2"
Medium	8 to 20	3/4" to 2"
Large	3 to 8	1" to 3"