Inks - A Bottle is not a Bottle

A bottle of ink is not a bottle of ink. The sizes of the bottles vary. While 2 oz has traditionally been the standard size, as the table below shows, a good number of the bottles are not under 2 oz. Prices also swing from very reasonable of about $5 per oz to some pretty hefty values.

The data below represents a scan of the prices for ink from major on-line retailers. Where there was a price difference of at least $1 or more per bottle a range of prices is shown in the second column. Where ink is bottled in ml, the conversion to oz is based on imperial US ounces. All amounts/prices of oz are rounded to one decimal place..

 

2012 Bottle (oz US) Price $US $/oz
Aurora 45 ml / 1.5 $13.75 - 15.00 9.17 - 10.00
Caran d'Ache 30 ml / 1.0 19.50 19.50
Delta 30 ml / 1.0 12.00 - 15.00 12.00 - 15.00
Diamine 80 ml / 2.7 oz 12.75 4.72
De Atramentis 35 ml / 1.2 oz 15.00 12.50
Herbin 30 ml / 1.0 oz 9.75 9.75
iroshizuku 50 ml / 1.7 oz 28.00 - 35.00 16.47 - 20.59
Lamy 50 ml / 1.7 oz 8.50 5.00
Montblanc 60 ml / 2.02 oz 17.00 8.42
Montegrapa 1.4 19.00 - 20.00 13.57 - 14.29
Noodler's 3.0 12.50 4.17
OMAS 62 ml / 2.1 14.50 - 15.50 6.90 - 7.38
Parker 2.0 10.00 5.00
Pelikan 4001 62.5 ml / 2.1 oz 10.45 5.23
Pelikan Edelstein 1.7 oz 25.00 14.70
Rohrer & Klingner 50 ml / 1.7 oz 12.00 7.06
Private Reserve 50 ml / 1.7 8.80 5.18
Sailor 1.7 12.50 - 24.00 7.35 - 14.12
Sheaffer 1.7 8.50 5.00
Stipula 70 ml / 2.4 oz 19.00 7.92
Visconti 1.35 17.50 12.97
Waterman 50 ml / 1.7 10.00 5.88

ml converted to us oz | rounded to one decimal place