Category Archives: Birthstone

Company Claims to Have Produced 5 Carat Synthetic Diamond

A Russian laboratory-grown diamond manufacturer, New Diamond Technology, is claiming it has produced a 5.11-ct diamond, the largest man-made, polished, near-colorless stone ever produced.

Synthetic-diamondAccording to the manufacturer, the unenhanced radiant-cut type ‘IIa’ diamond, produced by the high-pressure, high temperature method (HPHT) bears a K SI grade but hasn’t yet been sent to a lab.

This process is called Microwave Plasma Chemical Vapor Deposition, where carbon atoms are layered on top of an initial diamond ‘seed,’ fast-tracking a natural process lasting many millennia to a matter of months. And because these stones are lab-made, they’re good for the environment and are free of the ‘blood diamonds’ stigma that’s so tainted their traditionally-mined counterparts.

Diamond Experts familiar with diamond growing, say that it is an impressive achievement, but wondered whether it could be repeatable and also questioned what the stone would fetch commercially.

New Diamond Technology says it has a “new approach” that allows it to produce lab-grown gems with higher colors and clarity from its factories in Russia and Hong Kong. It said that it can produce gems ranging from 4 to 11 carats.

Company President Tamazi Khikhinashvili says that their diamonds are “more affordable” as compared to natural diamonds. He says the company has sold lab-grown gems to customers in Europe, Asia, and the United States.

October Birthstones

October has two birthstones; Tourmaline which is a favourite gemstone for many because it’s available in a rainbow of beautiful colors and Opal which are truly unique as each gem is adorned with a one-of-a-kind color combination.

Opal

The name opal derives from the Greek Opallos, which means to see a change (of color).”  Opals range in color from milky white to black with flashes of yellow, orange, green, red, and blue. An opal’s beauty is the product of contrast between its color play and its background.

October birthstone 16

 

Through time and nature’s heating and moulding processes, the gel hardened into the form of opals. When these particles are closely packed in spherical arrangements and in regular pattern, a three-dimensional array of spaces are created that give opal its radiance.

It is used in rings, necklaces and diadems; the smaller specimens for mounting snuff-boxes, rings, etc. and is believed to have the power of strengthening the eye.

Tourmaline

Tourmaline, being available in a wide variety of colors, is one of the favourite gemstone among jewelry designer, and gem collectors over the world. It is ideally suited to almost anyone’s taste.

tourmaline_suite

Tourmaline is also known for displaying several colors in the same gemstone.  These bi-color or tri-color gems are formed in many combinations; gemstones with clear color distinctions are highly prized.

Tourmaline improves sleep; harmonize state of the endocrine and immune systems.

Black tourmaline is also indicated in the treatment of neurotic disorders. Green tourmaline restores nerves after stressful situations. Red tourmaline, especially rubellites, reduced metabolism, improve complexion, improve blood circulation and improves circulatory system. Watermelon tourmaline combines the properties and pink, and green of their fellows.