rose gold rope chain Classification and Evaluation of Nephrite

1. Divided by output geological environment

Aberdeen jade: It is formed from the original nephrite mineral deposits transported by weathering to the river. Generally, it is pebble-like, with smooth surface, good roundness, and a layer of skin on the outside, with small blockiness.

Mountain jade: A primary ore produced on the mountain, it is characterized by sharp edges and corners, rough texture, large block, and often inferior to the quality.

Mountain and flowing water: It is between aberdeen jade and mountain jade. It has a larger lumpiness than aberdeen jade, slightly rounded, and has a smoother surface. The quality is slightly better than that of mountain jade, second only to aberdeen jade.

2. Divided by color

White jade: The color is white, may be slightly gray, and the texture is fine. The high-quality one is “mutton jade”, which is very rare.

Sapphire: Nephrite with gray-green hue, the most common.

Cyan white jade: The color is between white jade and sapphire.

Jasper: Green-dark green.

Topaz: Yellow-beige, the best one is yellow like Yanli, very rare.

Sugar jade: The color is similar to brown sugar, mainly brown, brown, red, etc.

Moyu: Also called black jade. Refers to the nephrite jade whose color is pure black, jet black, and dark gray, with pure black being the best.

Flower jade: refers to a piece of jade that has multiple colors, is properly distributed, and constitutes a certain shape and pattern, such as “tiger skin jade” and “variegated jade”.

The basic quality evaluation of nephrite jade has a recognized dimension in China. At present, the technical requirements and economic evaluation basis of nephrite raw materials in China’s arts and crafts circles and jewelry industry can be summarized as: three good plus one degree, that is, good texture, good color, and good gloss. And there is a certain degree of blockiness.

Good texture: Nephrite raw materials are required to be tough, fine and flawless.

Good color: It is required to be bright in color, pure and free of noise.

Good gloss: It is required to achieve bright gloss and no porcelain (that is, the gloss phenomenon of porcelain).

Lumpiness: It requires a certain quality.

The cleaning and maintenance of nephrite is relatively simple: Nephrite can be cleaned with a mild neutral solvent and stored separately to prevent collision, dust, and corrosion.

 

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OEM/ODM jewelry manufacturer design custom your own jewelry 

LET’S GET STARTED : mo@kingjy.com

 

GuangZhou JingYing focus on custom wholesale ring necklaces bracelets earrings sterling silver 925 jewelry,sterling silver gold plated with 18K,14K,24K yellow gold,white gold and rose gold.It is able to custom sterling silver jewelry various design,logo brand or other words by laser engraving according to the customer’s requirement.

Our monthly production capacity is up to 50,000 piece bracelets necklace earrings ring jewelry.JingYing entering into a partnership with supermarkets,jewelry chain shop,outlet stores,jewelry wholesaler,traders and jewelry brand company,professional provide create customized jewelry and mass production of high quality 925 sterling silver jewelry service.