In this ultimate kids' guide to crystals and precious gems, kids will find everything they need to know about how gemstones are formed and where they are found in the world. It's also filled with unusual facts about some of the world's most famous jewels--from the priceless Kohinoor diamond to the giant Star of India sapphire. The pack also includes a double-sided poster to stick on your wall and over 100 gemstone stickers, alongside awesome illustrations and pictures to readily engage all readers. Guarantees hours of fun for budding gemologists aged 7 and up.