| 14K Yellow Gold (free) - Prefferred over 18K due to higher strength. |
| 14K White Gold (free) - Prefferred over 18K due to higher strength and whiter alloy color, but contains higher nickel content. |
| 18K Yellow Gold (+ $19) - Softer but more yellow in tone than 14K. May require occasional tightening. 14K recommended. |
| 18K White Gold (+ $19) - Softer and not as white as 14K. May require occasional tightening. 14K or Platinum recommended. |
| Platinum (+ $89) - Strongest metal for jewelry and whiter in color than 14K white gold. |
