If you want to show a girl (or guy), that you love them, get them a Minecraft diamond necklace! If you want to show them that you really love them, craft some mining equipment, dig into the bowels of the earth, battle with exploding monsters, journey across rivers of lava, rip a raw diamond from the living dirt, and drape said diamond around your lady's neck. Just ask Steve, he knows what's up.

• 
  Official Minecraft product
• 
  Totally counts as buying someone diamonds