The garnet identify good or bad depends on two aspects

First, look at the color, where the emerald green garnet is the most expensive.
Transparency to see the particles, the particles are more transparent, the better the quality. So, we generally say pure bright color, high transparency Garnet is the most expensive. Say the following of other some garnet identification of good and bad indicators.
As for the identification of the garnet is good or bad, these are the main two aspects, of course, there are other aspects, such as fewer defects than defects seem more comfortable people, process and made out of different styles, value is different, beautiful style of course, have a lot to himself or herself, the price will certainly be higher here is that the high price of garnet is not necessarily good quality, some very beautiful garnet decoration, the impression also good, but contains many impurities, color impure, it is not considered a good garnet, therefore, to remind you, garnet is good or bad is not strictly proportional to the price. Some garnet is a mixture of different types of garnet, they look very enchanting, but the quality is very bad indeed, attract people's attention, selling price or full high, that we must pay attention, buy garnet the time, pay attention to the two points mentioned above, the color is as pure as possible, not look prettier the better.
Garnet there are many varieties, including emerald green, grain transparent is a rare species. Mozambique garnet production, the price is also very high, most of the domestic garnet color black, and the price is lower. Most important evaluation garnet color, the color should be bright and pure, followed by higher transparency, so processed precious stones bright "fire"; Again, fewer defects, style to the United States; the size of the general varieties value is smaller. Note starlight and cat's eye gemstone, if the color is garnet, 5 lines, or liner, is a higher value varieties. Universal MF R3M2 (SiO4) 3, R represents a divalent elements (calcium, magnesium, iron, manganese), M is a trivalent element (Al, Fe, Cr), R and M, the type of composition will form a different garnet subspecies, some garnet or even a mixture of different combinations of garnet.
Although different species of garnet, different colors, refractive index, specific gravity and hardness are slightly different, but all are garnet crystal system, single refractive gems, dichroic and polarizing. Common gemstone garnet and features Color: almandine, maroon; pyrope, red; manganese aluminum garnet, orange and yellow; grossular, yellow-green; andradite, green; magnesium iron garnet and Rose red and uvarovite, and emerald green. As a general appreciation or customer, there is no need to determine the garnet species, if we can understand that they are really garnet can. And garnet similar gems on the market is not much, mainly ruby ??red zircon, spinel, synthetic yttrium aluminum garnet, gadolinium gallium garnet and glass imitation products.
Distinguish is: given red stone, red zircon has a dichroic red zircon with a strong double shadow, and garnet goes for, so easy to distinguish with pomegranate; spinel generally lighter in color, detailed identification to use the instrument. The colored natural garnet has some flaws or crystalline inclusions (such as needle-shaped stone, some of the gas-liquid two-phase inclusions, etc.), and Y. A G. , G. G. G. And glass are often very clean, or spherical bread crumb-like bubbles, Chelsea showed a strong red. In fact, for certain garnet, it can also have their own unique characteristics, such as demantoid (green andradite variants) tend to have a "tail-like" fiber inclusions, experienced a glance be seen.