An original emerald stone can be identified by observing a few key characteristics. Natural emeralds usually have visible inclusions, known as “jardin,” which appear like tiny cracks or mossy patterns inside the stone—perfect clarity is rare. The color should be rich green with slight bluish tones, not too dark or overly bright. Real emeralds feel cool to the touch and have good weight compared to glass or synthetic stones. When placed under light, natural emeralds do not show excessive sparkle. Always check for proper certification from a reputed gemological lab to confirm authenticity.