- Marquise Cut
Diamond cut or shaped into an oval with pointed ends. Also called a ‘navette,’ which is the French word for “little boat,” as the shape is similar to that of a boat’s hull.
- Master Set
- Milky Diamond
- Mohâ€™s Scale
Scale from for classifying the relative hardness used for gemstones, based on the ability of harder gemstones to scratch softer ones. Moh’s scale ranges from 1 to 10, with 10 being the hardest. Diamonds are the only material on earth to rate as a 10.
Near-colourless, slightly oily looking man-made material that is often used to imitate diamond – a diamond simulant.