Gem counts:
1.5mm gems 10g - 8 x 1.5mm 8g - 9 x 1.5mm
2mm gems: 6g - 9 x 2mm 4g - 10 x 2mm 2g - 12 x 2mm 0g - 14 x 2mm 00g - 16 x 2mm 7/16" - 18 x 2mm 1/2" - 20 x 2mm 9/16" - 24 x 2mm 5/8" - 25 x 2mm 11/16" - 27 x 2mm 3/4" - 30 x 2mm 13/16" - 32 x 2mm 7/8" - 34 x 2mm
3mm gems: 1" - 25 x 3mm 1-1/16" - 26 x 3mm 1-1/8" - 28 x 3mm 1-1/4" - 32 x 3mm
4mm gems: 1-3/8" - 25 x 4mm 1-1/2" - 28 x 4mm 1-3/4" - 32 x 4mm 2" - 38 x 4mm 2-1/8" - 40 x 4mm
The back flares are going to be around 2mm for 8g though 5/8" and for around 3mm-4mm for 3/4" and up.
There is an additional charge for custom wearable lengths and for custom flare sizes. Please contact customer service for additional information.