Our Biggest Bomb Ever! Our new GEM Bombs weigh in at 1 Pound Each. They are so big that in the shop they are affectionately called "MOABB's" (Mother of all Bath Bombs). Each "Gem" Bomb contains BLING inside. You can choose a ring in your choice of size or a Surprise me option that may contain a ring, earrings, necklace or a bracelet.