https://www.cgtrader.com/3d-print-models/jewelry/rings/bent-t-letter-shaped-rings-with-diamonds-set
https://www.cgtrader.com/3d-print-models/jewelry/rings/bent-t-letter-shaped-rings-set
Prepared for production (3d-printing or CNC-machining) set of 10 STL models and editable 3DM source file of T1 ring replicas (version with diamonds on shoulder).
if you need version of this model without stones, I published it here: https://www.cgtrader.com/3d-print-models/jewelry/rings/bent-t-letter-shaped-rings-set
Sizes present (Tiffany's US scale): 4, 4+1/2, 5, 5+1/2, 6, 6+1/2, 7, 7+1/2, 8 and 8+1/2.
Gems specification: each ring contains 11 stones 1.3mm diameter each.
Model volumes (and estimated weights) varies from 222 to 261mm^3 (estimated wegth for sterling silver is from less than 2.2g to less than 2.6g... for gold alloys it's ~3-3.5g or less):
4: 222mm^3 (~2.2g for sterling silver); 4 1/2: 226mm^3 (~2.2g for sterling silver); 5: 228 (~2.2g); 5 1/2: 234 (~2.3g); 6: 238 (~2.3g); 6 1/2: 242 (~2.4g); 7: 247 (~2.4g); 7 1/2: 252 (~2.5g); 8: 257 (~2.5g); 8 1/2: 261 (less than 2.6g).
Each size was modeled as special part, I've not used fast resizing tools (stretch, flow etc.) due to numerous reasons linked with QUALITY of the model.