Ruby economic evaluation basis

Geplaatst op 13 november 2018 om 08:15 uur

---

---

Nature Ruby have certain defects to varying degrees. The primary factor in economic evaluation is color, followed by weight, transparency and clarity.The value of ruby is in terms of color, and the pigeon blood red is the best, followed by rose red and pink. In general, synthetic gemstones wholesale red is bright and bright, and its value is dark red in Thailand.

Gemstones high value

  The ruby particles produced in nature are small, and the value of the gemstone is increased by the square of the weight. However, if the weight of the gemstone exceeds 5 carats, the price of the gemstone is separately negotiated according to the quality of the gemstone.Visual identification of rubies Myanmar Mogo Ruby. The gems are mostly blood red, rose red and pink. The color is sharp but uneven, and a straight ribbon is often seen. Obvious pleochroism, observe the gemstone from different directions with the naked eye You can see two different colors. 

The gemstones contain, to varying degrees, the following inclusions: a rutile rutile inclusion; a hexagonal cylindrical spread of a generally fibrous rutile inclusion parallel ruby crystal,Forming three sets of meshes with intersection angles of 60 degrees and 120 degrees. When paralleling the nets of this group of bags and honing them into curved Moissanite original gemstone, when the light is shining on the curved surface, six-shot starlight will appear. Starlight red treasure stone.



  If the fibrous inclusions are irregularly densely packed, they appear as translucent milky white flocculent plaques. Diffuse gas-liquid inclusions: scattered in the Wholesale gemstone supplier where the gas state accounts for a small area.About 30%. If the gas-liquid inclusions are gathered together in a fingerprint-like pattern, they are called fingerprint-like gas-liquid inclusions. Short columnar, granular network inclusions: Ruby often contains spinel, calcite, tantalum Mineral inclusions such as stone and hematite. The corners of these small minerals are rounded by melting.The characteristics of the gemstone are similar to those of the Burmese ruby, but the color is lighter and the brightness is larger. The inclusions in the ruby of Sri Lanka contain two unique minerals in addition to the characteristics similar to Burmese rubies.

  Inclusion body: apatite inclusions, apatite in hexagonal column shape, rounded corners, appearing as a single crystal or group; silky rutile inclusions, slender than the rutile rutile inclusions in Burmese rubies.Thai sharp bamboo spinning ruby. The gems are brownish red or rose red. The polycrystalline twin crystals develop, and the ribbon and growth lines are straight. There are fewer inclusions, and there are no rutile inclusions in the silk. Common fingerprint-like inclusions.And The Tanzania ruby. Because the iron.Ruby is slightly darker.

---

---

Reacties

Er zijn nog geen reacties geplaatst.