1, faceted type is also called prism type, faceted type and faceted type. Its characteristic is that the gem is composed of many facets with certain geometric shapes, forming a regular three-dimensional pattern.

2. Emerald in stepped cutting is mainly used for cutting emeralds, and it is also suitable for all transparent gemstones, especially colorful colored gems. The number of facets and steps of this cutting is not the most important, because the beauty of color is in the primary position, while the fire color is in the secondary position.

3. Mixed cutting can make the fire color, color and weight of gems achieve the best effect, but because of the complex processing, it is not conducive to mass production, so it is limited to the design and pondering of high-grade gems.

Extended data:

Classification of gems

1. Baoyu is divided into natural jewelry and jade and artificial products according to its genetic type (that is, natural origin or artificial manufacture).

2. Natural gemstones are divided into natural gemstones, natural jade and organic gemstones according to their causes and components. Natural gems: such as diamonds, rubies, sapphires and emeralds. 2. Natural jade: such as jadeite, nephrite and jadeite. 3. Organic gems: such as pearls, corals, amber, etc. Cultured pearls also belong to this category.

3. Man-made products refer to all or part of materials produced or manufactured by people and used as jewelry and decorations, including synthetic gems, artificial gem, divided gems and recycled gems.

4. The naming principle of jewelry and jade is as follows: take the names of minerals and rocks as the basic names of natural gem materials, such as almandine and diopside.

People's Network-Classification and Naming of Jewelry and Jade