The word "diamond" comes from the Greek word "adamas" which means "the untameable" or, in other translation, "invincible." They are tattooed with this symbol under the belief that, together, they cannot be stopped.
Could an arrow be a symbol of reaching your goals? Everyone is given a limited number of arrows. Use your arrows wisely and aim for what you really want. Once your arrow has been shot, there's no going back but you have one option: move on.
A diamond is the strongest and most pure form. The word diamond comes from the ancient Greek αδάμας – adámas "unbreakable"). The arrow will represent us with 4 feathers at the end for each one of us and a heart tip to symbolize our love.
Wrist A Wave is symbolized as one of the strongest forces on earth. So strength for one. Also if you read more into it, its about faith, a wave is you against mother nature, you cannot control it, you just have to put your faith into her.