| Year |
Stone |
| 1st - |
Peridot, Gold jewelry |
| 2nd - |
Garnet |
| 3rd - |
Jade, Pearl |
| 4th - |
Blue Zircon, Blue Topaz |
| 5th - |
Pink Tourmaline, Sapphire |
| 6th - |
Turquoise, Amethyst |
| 7th - |
Yellow Sapphire, Onyx |
| 8th - |
Tanzanite, Tourmaline |
| 9th - |
Amethyst, Lapis, Tiger’s Eye |
| 10th - |
Diamond |
| 11th - |
Citrine, Turquoise |
| 12th - |
Opal, Jade |
| 13th - |
Moonstone, Citrine |
| 14th - |
Agate, Opal |
| 15th - |
Rhodolite Garnet, Ruby |
| 16th - |
Red Spinel, Peridot, Aquamarine |
| 17th - |
Carnelian, Amethyst |
| 18th - |
Aquamarine, Opal |
| 19th - |
Garnet, Topaz, Aquamarine |
| 20th - |
Yellow Diamond, Emerald |
| 25th - |
Tsavorite Garnet |
| 30th - |
Pearl |
| 35th - |
Emerald, Coral |
| 40th - |
Ruby |
| 45th - |
Cat’s Eye, Alexandrite, Sapphire |
| 50th - |
Imperial Topaz |
| 55th - |
Alexandrite, Emerald |
| 60th - |
Star Ruby, Diamond |
| 65th - |
Blue Spinel |
| 70th - |
Smoky Quartz |
| 75th - |
Diamond |