| Year |
Stone |
| 1st |
Peridot |
| 2nd |
Red Garnet |
| 3rd |
Jade, Pearl
|
| 4th |
Blue Zircon, Topaz, Amethyst
|
| 5th |
Pink Tourmaline, Sapphire
|
| 6th |
Turquoise, Amethyst
|
| 7th |
Yellow Sapphire |
| 8th |
Tanzanite, Tourmaline
|
| 9th |
Amethyst, Lapis, Tiger’s Eye
|
| 10th |
Blue Sapphire |
| 11th |
Citrine, Turquoise |
| 12th |
Opal, Jade
|
| 13th |
Moonstone, Citrine
|
| 14th |
Agate, Opal
|
| 15th |
Rhodolite Garnet, Ruby
|
| 16th |
Red Spinel, Peridot, Aquamarine
|
| 17th |
Carnelian |
| 18th |
Aquamarine, Opal
|
| 19th |
Garnet, 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 |
| 65th |
Blue Spinel |
| 70th |
Smoky Quartz |
| 75th |
Diamond |
