| Year | Gemstone | % Correct |
|---|---|---|
| 60th | Diamond | 100%
|
| 40th | Ruby | 95%
|
| 65th | Sapphire | 88%
|
| 20th | Emerald | 86%
|
| 30th | Pearl | 85%
|
| 14th | Opal | 77%
|
| 50th | Gold | 76%
|
| 6th | Amethyst | 73%
|
| 2nd | Garnet | 61%
|
| 70th | Platinum | 51%
|
| 7th | Onyx | 46%
|
| 12th | Jade | 45%
|
| 11th | Turquoise | 36%
|
| 13th | Citrine | 32%
|
| 3rd | Moonstone | 32%
|
| 9th | Lapis Lazuli | 28%
|
| 4th | Blue Topaz | 16%
|
| 5th | Rose Quartz | 15%
|
| 1st | Mother of Pearl | 8%
|
| 8th | Tormaline | 7%
|
| 15th | Rhodolite | 4%
|
| 10th | Crystal/Green Tormaline | 1%
|
| 25th | Tsavorite | 1%
|