Diamond OG. Crystal Covered goo... This marijuana strain is very potent and has long-lasting effects. Diamond OG is an indica strain, and when I smoke it, it reminds of the feeling I get after an intense massage. Diamond OG was originally the OG Kush strain, and was crossed with an unknown strain. There are so many crystals on the Diamond OG strain that you can see where it gets it’s name. It sparkles very intensely in sunlight. The Diamond OG strain is good for stress, pain, appetite, and for problems sleeping. A well-balanced strain that is great for stress and pain.