Tag Archives: gemstone

February Birthstone

Amethyst is birthstone for February.

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Amethyst composition is sio2, hardness is 7, specific gravity is 2.65, and refractive index is 1.54 to 1.55, has the dichroism. Viewing from different angles, amethyst shows purple tones of blue or red, usually cutting to facets. Natural output amethyst includes iron, manganese and other minerals, which forms beautiful purple colors, mainly light purple, purple red, scarlet, bright red, deep purple, blue purple and so on, amount all the color, deep purple red and bright red is most valuable. Natural amethyst often includes natural ice cracks or white clouds impurities. Amethyst widely distributed in nature, and the main origins are Brazil, Russia, South Africa, and Madagascar.

Amethyst is the gemstone believed by ancient Greeks and Romans to ward off the intoxicating powers of Bacchus. It is said that Bacchus were filled with anger because of arguing with moon goddess Diana, he sent his ferocious tiger to revenge. But accidentally he meet up the girl Amethyst who is going to meet Diana, in order to save the girl’s life from the ferocious tiger’s mouse, Diana turned the girl into a clean flawless crystal. Seeing the flawless crystal, Bacchus feel deeply regret, his repentant tears dripping onto the crystal figurines, dyed it to purple immediately.

Amethyst is “Guardian stone for love”, it can give lovers and couples deeply love, chastity, honesty and courage. Also amethyst is said to keep the wearer clear-headed and quick-witted. Throughout history, the gemstone has been associated with many myths, legends, religions, and numerous cultures. English regalia were even decorated with amethysts during the Middle Ages to symbolize royalty. It has been associated with many myths, legends, religions, and numerous cultures. Amethyst is purple quartz, a beautiful blend of violet and red that can found in every corner of the earth. Historically, the finest amethyst was found in Russia and was featured in much royal European jewelry. Today, while Brazil is the primary source of this gemstone, fine material can be found elsewhere, especially in Zambia.

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Garnet Quality Analysis

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.

2. Transparency

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.

3. Cutting

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.

4. Weight

Under same condition, the bigger size and heavy stone value is higher than small one.

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January Birthstone

Garnet is the gemstone that filled in flame, mostly we buy is red color and purple red. For thousands of years, garnet was considered  to be representative of belief, friendship, faithful and honest, and also a good luck charm. According to legend, garnet will help people improve personal relationships and protect the wearer from harm and disaster.

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Garnet has been used in jewelry for thousands of years. Garnet beads and inlaid jewelry were worn in ancient Egypt as early as 3100BC. The name “Garnet” comes from the Latin “granatum” meaning “pomegranate seed”, which the red crystals resemble.

The world of garnet is more colorful than we thought, thanks to the new finds in Africa. It is true to say that red is the color most frequently found in garnet, but this gemstone group occurs in many colors. Besides red, garnet can also be various shades of green, yellow, orange, brown, pink, or purple.

The following are some important members of the garnet group:

Pyrope – red

Rhodolite – purplish red, reddish purple, purple, pink

Spessartite (also spessartine) – orange, reddish orange, red-orange, orangy red

Mandarin Garnet – orange, yellowish orange, reddish orange

Demantoid – green, yellowish green

Tsavorite – bluish green, green, yellowish green

Hessonite – orange, brownish orange, brownish yellow

Mali Garnet – green, yellow

Color Change Garnet – fluorescent: blue, green, violet; incandescent: purplish red, red, purple

Malaia (also malaya) Garnet – orange, pinkish orange, reddish orange, brown, pink

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Because of the variety of its colors, garnet is gemstone for every fashion trend. The classical color of this gemstone group is red, but the green of demantoid and tsavorite is highly esteemed. Also the orange of spessartite is much sought-after, and the pink or purple of rhodolite is amazing.

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What makes garnet so popular and always in high demand? Garnet appeals due to its natural beauty, magnificent brilliance, and excellent wearing quality. Garnet is rarely subjected to any treatment, and is ideal to work into jewelry. With the excellent hardness of 7 to 7.5 on the Mohs’ scale, garnet is suitable for everyday wear and is easy to care for.

Garnet represents friendship, and is a good luck charm. According to legend, garnet will help people improve personal relationships and protect the wearer from harm and disaster.

Today, garnet is found world wide, but some varieties are unique to certain areas only. Tsavorite and malaia (or malaya) garnet, for example are found only in East Africa (Kenya, Tanzania, and Madagascar).

Garnet is the birthstone for January and is the suggested gift for the 2nd anniversary.