Thursday, August 4, 2011

Popular Ametrine Gemstones

Popular Ametrine, a well-known gems mainly from Brazil, has interesting mixture of amethyst and citrine with zones of purple and yellow or orange. It is naturally occurring variety form of quartz.


Cut Ametrine

SKU: JSS6404
Location: Bangkok, Thailand
Approx: Weight 56.63 cts
Approx: Dimension(s) 21.61 x 26.17 x 15.71 mm
Quantity: 1 pcs
Transparency: Transparent
Origin: Brazil

Tuesday, July 26, 2011

Carving Blue Topaz

Carved Topaz is one of our most interesting products and see our attractive pair of matching carved blue topaz. They have an overall shape similar to a seashell. The fluted surface adds interest. The dimensions are approximately 16 mm long by 11 mm wide for each piece. They are set will gold at the top with a dark blue stones as a caps. They do not have any studs or pendant loops, so it is optional about how they might be finished before wearing.




Topaz Carving

SKU: ID0288
Identification: Topaz
Approx: Weight - 4.01 g
Approx: Dimension(s) 12.2 x 16.7 x 5.25 mm
Quantity: 2 pcs

Monday, July 25, 2011

Blue Topaz Carving

Carved Topaz is one of our most interesting products and see our attractive pair of matching carved blue topaz. They have an overall shape similar to a seashell. The fluted surface adds interest. The dimensions are approximately 16 mm long by 11 mm wide for each piece. They are set will gold at the top with a dark blue stones as a caps. They do not have any studs or pendant loops, so it is optional about how they might be finished before wearing.




Topaz Carving

SKU: ID0288
Identification: Topaz
Approx: Weight - 4.01 g
Approx: Dimension(s) 12.2 x 16.7 x 5.25 mm
Quantity: 2 pcs

Monday, July 11, 2011

Jade History and Popular Name

According to the history Jade is no ordinary stone. Not even an ordinary "precious" stone. It has a "certain something" that made a Chinese emperor offer fifteen cities for a jade carving he could hold in one hand; that made Montezuma smile when he heard that Cortes was interested only in gold?? This is how begins one of the most beautiful books about Jade: "Jade, Stone of Heaven" by Richard Gump.




Jade name comes from the Spanish: "Piedra de Ijada", that then passed in French as ?Le jade?, but it was known for the Chinese as "Yu". For hundreds of years the word "jade" was used to describe a typically green gemstone of the alkaline pyroxene mineral group, however, in about 1863 gemologists were able to distinguish two types of the mineral, one which if often referred to as jadeite and the other as nephrite. Nephrite usually occurs as aggregates of amphibole crystals (silicate of magnesium) it is fibrous, hard to fracture and soapy in appearance. Jadeite is made up of interlocking microcrystalline pyroxene crystals (silicate of aluminium), it is more readily broken but more brilliant while polished. Even though this distinction has been made, the word "jade" is still used freely in the market to refer to both jadeite and nephrite. So Jade is not one gemstone but two!

In China and many other Asian countries, jade is believed to bring the wearer good luck and long life. It is also a symbol of high rank and authority. Jade can be found as gemstones, usually cut en cabochon, and as carvings for pendants, amulets, pipes, table utensils, and figurines. Many scenes from Chinese folklore are carved on jade discs and include symbols for fortune, fertility and longevity. More than 2000 years ago the Chinese used nephrite, due to its incredible tough structure, to carve weapons such as daggers and clubs. Jadeite is more recent, it was discovered by Chinese on the late between the XIII and the XVIII century and was fist named "Yunnan jade" as it was coming from north Burma through Yunnan traders.

Jade is classified in the trade as Imperial Jade, Commercial Jade or Utility Jade.

The highest quality of jadeite is called "Imperial Jade". Seven sub categories of Imperial Jade including the "kingfisher jade" or "fei-ts?ui" combine high transparency with a rich saturated emerald-green color due to chromium. Imperial quality Jade is so rare and loved than top quality pieces can be more expensive than diamonds of equivalent weight?

"Commercial Jade" has the hue of green or violet, with stripes, specks or spots of other colors. It is translucent to near opaque. The violet variety owns its color to vanadium and or chromium and is famous as "Lavender jade".

For "Utility Jade" only the texture is determinant. Here no green or violet is visible. Utility Jade is usually used in carvings as statues or utensils. Fine, smooth, clear texture is the sign of top grade utility Jade. In carvings the value is placed heavily on the quality of the workmanship.

Natural color untreated Jade is known as "A-Jade" but Jade as all the highly valued gemstones have many imitations and is also sometimes treated:

Jade is commonly bleached and is then known as "B-Jade". The color of "B-Jade" does not usually last very long and "B-Jade" is more brittle as its structure is usually damaged by acids.

Wednesday, June 29, 2011

Aquamarine Earrings, Rings, Jewelry and Gemstone

Thailand Gemstone - Aquamarine gemstones: A pleasant gem to hold and own, aquamarine belongs to the beryl family of mainerals. Often occurring in lighter shades of "sky" blue aquamarine has been a long time favorite gem of The USA and Europe. Colored by iron, the color ranges from light blue to greenish blue.




Aquamarines can be found in Brazil, Russia, Zambia, Tanzania, Sri Lanka, Madagascar, California and Myanmar. Beryl has a hardness of 7.5-8 with the cleavage being indistinct and the fracture conchoidal to uneven. Aquamarine occurs from small sizes to very large crystals reaching a few feet in height. Aquamarine is a member of the beryl family, a group of gemstones including: Emerald (green beryl), Heliordor (golden beryl), Goshenite (colorless beryl), Morganite (pink beryl), Bixbite (red beryl), Maxixe (Blue beryl which color fade in sunlight).

Aquamarine is the name given to iron colored beryl which comes in colors from pale blue to rich sky blue or greenish blue. Aquamarine was named by the Romans over 2000 years ago, derived from words that mean ?water of the sea?, which is what it reminds one of with its clear blue color. The preferred color today is rich sky blue. Most aquamarine occurs without any, or very few, inclusions, making it a very eye-pleasing stone. Because of the shape of the rough that occurs as long prismatic crystals, aquamarine is most often fashioned as a step-cut emerald shape.

Aquamarine is a "diachronic" stone which means that it shows more than one color, depending on which way you look at it. From one view it may appear a rich blue, greenish, or greenish-blue while from another angle it may appear to be nearly colorless. Nowadays most of the aquamarine in the market owns its deep coloration from heat treatment at 400 to 450 degres of lower colored material. This coloration is stable unlike the possible coloration resulting from irradiation. Most aquamarine mined today comes from pegmatites in Brazil, but it is also found in alluvial gravels as well.

Fine aquamarines are also found in the Sakangyi area in the west of the Mogok stone tract in Burma (Myanmar). Other occurrences are in Australia, Russia, Madagascar, Afghanistan, Pakistan, Kenya, Mozambique, Namibia, Nigeria, Zambia, and India. Each locality produces a different color variation, sometimes making it possible to identify a stone?s origin from color alone. Aquamarine is brittle and sensitive to pressure. It is also sensitive to high temperature and may loose color if heated to high. Care must be so taken when making some aquamarine jewelry.

Thursday, June 23, 2011

Apatite Jewelry, Rings and Necklace

Apatite Jewelry, Apatite Rings, Apatite Necklace and Apatite Earrings are famous products of Apatite gemstone in Gems Market.





Apatite has a hardness of 5 on the MOh 's scale and comes in colors ranging from yellow, blue, green, white, colorless, brown, purple, violet, gray and pink...The chemical formular is Ca5(PO4)3(F,OH,Cl)3. It has a density of 3.10-3.35 (massive varieties 2.5-2.9) Luster is vitreous. Among the countries in which apatites are found are: Myanmar, Sri Lanka, Madagascar, Brazil, India, Spain, Germany, Tanzania, Canada and Mexico.

Tuesday, June 21, 2011

Amethyst rings, jewelry and MORE

Amethyst, one of the most popular gems used in jewelry and well-known products are Amethyst bracelet, Amethyst earrings, Amethyst rings, Amethyst pendant, Green Amethyst jewelry, Amethyst gold ring.





Amethyst comes from Brazil, Africa, Zambia, Nigeria, Australia, Namibia, Russia, Uruguay, India, Loas, and Myanmar. Derived from the Greek word "amethystos" meaning not "drunken", people beleived that to drink from a cup made from amethyst would prevent drunkeness. The best variety is a deep instense purple with flashes of red. Russia produces some of the best quality as do Zambia and Loas.