It is halcyon right, material for making clothes and carver are very poor nevertheless (difference of material for making clothes also does not care about carver commonly) actually this thing basically sees jade lot and self interest, like medium, price also do not calculate expensive, buying play, as to true and false, halcyon is to had compared those who admit commonly, ramble to the market is tasted to likeness or differentiate very easily more, difficulty is the halcyon that fills glue to coloring especially high-grade halcyon, doing not have sufficient experience basically is very difficult divisional. The novice wants main to halcyon character to want to understand, for instance mineral composition, solution leaves, hardness, burnish, refractive index, density. Still have even if hole, kind, the ground
Emerald classification:
A goods of halcyon is to point to natural generated halcyon, just use physical method to machine carve, burnish, polish, and did not use method of any chemistry, irradiation to improve its internal composition.
New-style A goods (belong to B goods) it is to point to the foundation in A goods halcyon to go up, color is added in the part of coloured root, what need an attention particularly is this kind of halcyon the article that add color, without fluorescent reaction, and do not change specific gravity. Can issue in not strict appraisal orgnaization " certificate of emerald A goods " . This kind of halcyon is in gem market is very much even the boutique is common sell, if buy,collect class halcyon to be sure to keep in mind Shen Zhi.
B goods (pickling of Bleached And Polymer Impregnated Jadeite) blanchs the processing that note glue
C goods (processing of Coating Jadeite) coloring. For coloring halcyon. No matter acerbity dip is blanched, fill glue, laic labour adds lubricious halcyon to call C goods.
Emerald value principle:
1. Of halcyon green: More charming is green have value more.
2. Of halcyon red: Fei is red, emerald green for green, more bright red costlier.
3. Color: Green, red the highest grade that is halcyon, it is yellow and purple next, brighter costlier.
4. Diaphaneity: The quality of a material with close together organization of jadeite interior crystallization is better, diaphaneity also follows tall, what we say " glass is planted " it is the jadeite with this kind of tall diaphaneity, if contain chromium to abound because of jade itself,formed ice to plant halcyon, value does not poor and beg hard.
5. Lubricious divide evenly: Besides color charming green, outside diaphaneity Gao Zhi, still must tonal and even ability is top grade.
6. Flaw: Want to notice to flawless, stain waits, these flaws can affect the quality of jadeite.
7. Appearance: Most emerald drop extent is form of elliptical egg face, to Wu Ji its appearance has a variety of, the stand or fall of appearance and beauty also are influential to the price of jade.
8. Carver: Vulture the stand or fall of its time and the meaning that resemble a note of the ancient Chinese five-tone scale are opposite baldric the price is influential.
9. Size, ply: The jade of same quality is of course with big and large price taller.
10. Burnish: Besides afore-mentioned conditions, burnish is even bright, cannot dark.
