Garnet evaluation and appreciation

Garnet in color, transparency, clarity, weight and other aspects of its cut quality evaluation standards, excellent product requires pure color beautiful, clean and transparent interior, flawless crack, cut well and have some weight.
(1) Color: The color to be pure and beautiful. Different varieties, different colors, values ??are different. As rare demantoid, chrome vanadium grossular other green varieties if transparent without cracking, high quality and high quality emerald may equal value; red pyrope, orange spessartine, Hessonite also valuable, and maroon, dark red almandine lower value.
(2) Transparency: high quality person should be transparent and clean. Translucent or color depth are often processed into a concave arc in order to increase transparency. While opaque to translucent varieties to check the internal arrangement of inclusions see if processed into cabochon while showing a starlight effect.
(3) Clarity: To no cracks, flaws, especially a lot of dark red almandine. Complete crystal partakers who pay attention to whether the internal structure or folder with black opaque inclusions agglomerate. Such as Vietnam output intact skin only to garnet crystal thin transparent can be utilized for other mineral impurities within the black heart. At present, high-quality garnet mostly irregular silicon carbide grit.
(4) Weight: raw block the bigger the better, rounded shapes to mix better, which can improve the processing yield. Right Demantoid green grossular other high-grade varieties, the price increases exponentially with the weight, usually more than 0.5ct very valuable; while other species with different weight finished their prices changed little, mainly to see required when making jewelry styles and sizes requirements. But a few rare giant crystal or finished products can be regarded as treasures. (5) Cut: To fashionable, proper proportion, polish well. Different varieties of materials to be designed for different styles. High dispersion Demantoid processed into standard round brilliant, in order to fully reflect its fire color; coloration were processed for the double curved to enhance the body color; color depth are processed in order to lighten the color of the concave arc, increasing transparency; has multiple sets of special needles arranged in the direction of the arc-shaped inclusions processing to display the star effect.