Platinum
Gold
Silver
| type | melt range |
| Extra Easy | 935 - 955 |
| Easy | 1010 - 1029 |
| Medium | 1179 - 1217 |
| Hard | 1422 - 1445 |
| 1700 | 1700 |
| carat | colour | type | melt range |
| 9ct | yellow 375 | Extra Easy | 620 - 690 |
| 9ct | yellow 376 | Easy | 650 - 720 |
| 9ct | yellow 377 | Medium | 735 - 755 |
| 9ct | yellow 378 | Hard | 755 - 795 |
| 9ct | white 375 | Medium | 735 - 755 |
| 9ct | red 375 | Medium | 685 - 790 |
| 18ct | yellow 800 | Easy | 700 - 715 |
| 18ct | yellow 800 | Medium | 730 - 765 |
| 18ct | yellow 800 | Hard | 790 - 830 |
| 18ct | white 500 | Easy EWG 500 | 690 - 710 |
| 18ct | white 500 | Medium MWG 500 | 705 - 720 |
| 18ct | white 500 | Hard HWG 833 | 855 - 855 |
| 18ct | red 750 | Medium | 805 - 810 |
| 22ct | yellow 800 | EYG 800 | 865 - 875 |
| 22ct | yellow 800 | Easy | 865 - 900 |
| weight g per cm | type | melt range |
| 5 | Extra Easy | 667 - 709 |
| 9 | Easy | 705 - 723 |
| 6 | Medium | 720 - 765 |
| 18 | Hard | 745 - 778 |
| 9 | Enamelling | 730 - 800 |