1st Anniversary

Gold and Mother of Pearl

2nd Anniversary

Garnet

3rd Anniversary

Pearls. Alternate: Jade

4th Anniversary

Blue Topaz. Alternate: Blue Zircon

5th Anniversary

Sapphire. Alternate: Pink Tourmaline

6th Anniversary

Amethyst. Alternate: Turquoise

7th Anniversary

Onyx. Alternates: Yellow Sapphire, Golden Beryl

8th Anniversary

Tourmaline. Alternate: Tanzanite

9th Anniversary

Lapis Lazuli. Alternates: Amethyst, Green Spinel

10th Anniversary

Diamond Jewelry. Alternate:Blue Sapphire

11th Anniversary

Turquoise. Alternates: Citrine, Yellow Zircon

12th Anniversary

Jade. Alternate: Opal

13th Anniversary

Citrine. Alternates: Moonstone, Hawk's Eye

14th Anniversary

Opal. Alternates: Agate, Bloodstone

15th Anniversary

Ruby. Alternates: Rhodolite Garnet, Alexandrite

16th Anniversary

Peridot. Alternate: Red Spinel

17th Anniversary

Watches. Alternate: Carnelian

18th Anniversary

Cat's Eye or Chrysoberyl
. Alternate:Aquamarine

19th Anniversary

Aquamarine. Alternate:Almandine Garnet

20th Anniversary

Emerald. 
Alternate: Yellow or Golden Diamond

21st Anniversary

Iolite.

22nd Anniversary

Spinel.

23rd Anniversary

Imperial Topaz.

24th Anniversary

Tanzanite.

25th Anniversary

Silver Jubilee.

30th Anniversary

Pearl Jubilee.

35th Anniversary

Emerald.

40th Anniversary

Ruby.

45th Anniversary

Sapphire.

50th Anniversary

Golden Jubilee.

55th Anniversary

Alexandrite.

60th Anniversary

Diamond Jubilee.