Emerald jewelry
would be the classic gift for the 55th anniverary, and there are many great earring, pendant, ring, and bracelet choices, but if she is not into emeralds, feel free to try the modern material of turquoise jewelry as a lovely alternative.
Gifts for the couple might include a dark green or light blue decorative item for the home. Perhaps an emerald green artisan glass bowl, green crystal figurine, emerald wine glasses, sculpture, or clothing.
Given that this is a special year, you may also consider commemorative personalized keepsake gift.
For an exotic gift, send the happy couple
to Ireland, the Emerald Isle, or Emerald Bay in the Cayman Islands.
Alexandrite is the alternate modern jewelry material for the 55th anniversary.