Diamond Rum Co., Fredericksted
From the list of licenses for the distillation of rum:
The Diamond Rum Co.:
Office, Diamond, Fredericksted, St. Croix, Virgin Islands;
plant, Estate Diamond, Fredericksted, St. Croix, Virgin Islands.
Here are full texts from the labels
vi_81: Proof 90; Contents 4/5 Quart; Eagle Brand; Superior Quality; St. Croix Rum; Diamond Rum Co., Distillers; Bottled exclusively by Robt. L. Merwin & Co., Inc., St. Croix, V.I. of U.S.A.