Black pearls are nacreous spherical concretions formed in black butterfly shells (also known as black lip shells). The output of black pearls is very low, only tens of kilograms are produced in the world every year. The main producing area of black pearls is Tahiti (also known as Tahiti, under the jurisdiction of Germany) in [...]
Category Archives: Jewelry News
According to reports, coconut pearls have been found in the fruits of certain coconut trees in the South Sea Islands. This kind of pearl is very rare. It is because the seeds are hidden in the fruit and become after a long time. The color is like amber and the size is like a cherry. [...]
According to a report by "National Gems and Jade News" on October 23, 1998: Pearl powder has a series of beauty and health effects on the human body, such as nourishing, skin care, clearing heat and reducing fire, soothing the nerves, replenishing calcium, improving eyesight and eliminating fog, delaying aging, etc. . But the beauty [...]
Because the name of emerald green is too complicated and numerous, the jewellery trade circles often use the 10 words "dense, yang, pretty, righteous, harmonious, light, yin, old, evil, flower" to evaluate it, which can be called "cross formula" . "Dense" refers to the color dark green without black. On the contrary, it is "light", [...]
Aquamarine refers to the beautiful azure blue to sea blue emerald variant, and it can also be called sky sapphire and water sapphire. The gem industry in my country also calls it "blue crystal". It is considered to symbolize "composite, brave", "happy and longevity", and is designated as the birthstone in March. Because aquamarine has [...]
The so-called "opal stone" in gemology refers specifically to golden emeralds with cat's eye effect. Any other gem mineral with cat's eye effect cannot be called "opal stone" in general, but must be in front of its name. It is given mineral names, such as "emerald cat's eye" or "quartz cat's eye". The chemical composition [...]
Since more than 20 kinds of gem minerals with cat's eye effect have been discovered in the world, and their beauty and value are far less than the golden-green opal, some people call golden-green opal "true opal" and refer to the other All kinds of gems with cat's eye effect are called "false opals". However, [...]
Alexandrite, also known as "allex", is a variety of chrysoberyl which has a discoloration effect due to the chromium content; if it has both a discoloration effect and a cat's eye effect, it is called "alexandrite opal", which is very rare and extremely A precious variety, weighing 5ct, is worth more than US$5,000 per carat. [...]
Tourmaline is mainly used for jewelry such as ring face and necklace; delicate colors can be carved into crafts. Tourmaline cat's eye is mainly used as ring face. Because tourmaline has piezoelectric effect and pyroelectricity, it also has important uses in science and technology. The name of tourmaline comes from its own properties of generating [...]
There are two versions of the source of the English name of Topaz: one is derived from the old name "Topaz" of a small island in the Red Sea. The island does not produce topaz but is rich in peridot. The locals regard it as yellow. The variety of olivine is called "topaz", hence the [...]