| Ring Size (US) | Diameter (Millimeters) |
| 4.0 | 14.9 mm |
| 4.5 | 15.3 |
| 5.0 | 15.7 |
| 5.5 | 16.1 |
| 6.0 | 16.5 |
| 6.5 | 16.9 |
| 7.0 | 17.3 |
| 7.5 | 17.7 |
| 8.0 | 18.1 |
| 8.5 | 18.5 |
| 9.0 | 19.0 |
| 9.5 | 19.4 |
| 10.0 | 19.8 |
| 10.5 | 20.2 |
| 11.0 | 20.6 |
| 11.5 | 21.0 |
| 12.0 | 21.4 |
Frequently Asked Questions
Recycling Gold
Gold is a valuable material. Recycling and reusing gold is not new to the jewellery industry. Some jewellers don't collect their scraps and filings to be recycled, but this is in the vast minority, as it is a costly habit to have. To recycle gold jewellery, the item must first be...
3D Design Tips: How to calculate gold weight by volume?
To calculate the gold weight of a 3D model, you will first need to find the volume of the model. This can be done in Rhino 3D by selecting the closed object and typing in "volume" and then Enter. The software will give you cubic millimeter of the object. With the volume,...
Ring Size Chart
Ring Size (US) Diameter (Millimeters) 4.0 14.9 mm 4.5 15.3 5.0 15.7 5.5 16.1 6.0 16.5 6.5 16.9 7.0 17.3 7.5 17.7 8.0 18.1 8.5 18.5 9.0 19.0 9.5 19.4 10.0 19.8 10.5 20.2 11.0 20.6 11.5 21.0 12.0 21.4
What is a diamond Carat?
A carat (with a Cnot a K) is the unit of measurement used for the weight of gemstones. The word "carat" is derived from the word "carob", which is the dried fruit bean that was used in the times before digital scales to weigh small objects. A carob bean is...
