For healthy caring, the same gemstone power is almost same, only different between different sizes, the carat weight. But to learn more about its price, different stone will be huge differs in price; here are some factors that influence the value of garnet stone.
1. Varieties and colors
There are many varieties of garnet, their price differ a lot because of the difference of scarcity, so the scarcity is very important factor that influent garnet’s price.
Normally there are two colors garnet in the market, one is normal red, and the other is fuchsia, these garnet is cheaper consider to others, including pyrope, almandine and some spessartine; the other one is beautiful green garnet, mainly demantoid and tsavolite. Demantoid shows sparkling viridis, refractive up to 1.89, its high dispersion values 0.057 is twice of other garnet stones and higher than diamond, when processed into gems it shows sparkling fire, very attractive. Demantoid is very rear in nature, so its value is much higher than other garnet stones. And due to those facts, demantoid is always a very high grade gemstone loved by people, its value equal to high grade Sapphire. High grade demantoid’s price is even near to or higher than same color emerald. Orange spessartine, red pyrope and dark red almandine are Low-grade gems on the other hand.
But there are exceptions when the garnet stone is color changing, this kind garnet is very rear, value is higher than normal ones. Color changing garnet is named Malaya, it is mixed by pyrope and spessartine, shows green under sunshine, and shows red purple under incandescent light. Malaya mainly comes from Tanzania and Sri Lanka.
The more transparent garnet value is higher. Containing inclusions will devalue the garnet’s price, but containing parallel tubular inclusions is exception. Garnet that contains tubular inclusions can be processed to cabochon and then shows four or six corners-star radiance, and is high valued.
Cutting is an important factor to analysis price for all kind gems, semi-gems and zircon and all others, garnet is no exception
A. Type of cutting: there are two main cutting methods for gemstone, one is facet cutting and the other is cabochon cutting. High quality garnet stone mostly use facet cutting, and low quality garnet mostly use cabochon cutting.
B. Proportion and symmetry: both cutting should make sure correct proportion and symmetry. Except demantoid, other garnet’s dispersion all lower than diamond, but if cut into appropriate proportion and make sure good symmetry, it can also shows good fire. Demantoid has higher dispersion than diamond, if the cutting is perfect, it will shows very beautiful fire.
C. Polishing: polishing will affect gemstone’s luster, good silk polishing will make the gemstone more shinning, and thus price will be also higher.
Under same condition, the bigger size and heavy stone value is higher than small one.