18k gold jewelry for sale An excellent alternative to diamonds-Zircon

The common colors of zircon are colorless, blue, yellow, green, cokelat, red, and purple. According to the degree of crystallinity, zircon can be divided into three varieties: high type, medium type and low type. The refractive index, density, and hardness value gradually increase from low type to high type. High-type zircon has a high birefringence, while low-type zircon has almost no birefringence.

Colorless is one of the most popular colors of zircon. It can be natural, or it can be heat-treated from yellow, cokelat, and red. As a diamond imitation, it is required to be pure, high in transparency, ideally cut and capable of showing dazzling fire. The greater the quality, the higher the value.

Blue zircon is the most valuable of all zircons and one of the most popular colors. It requires bright and pure colors, transparansi tinggi, clean interior and perfect cutting. The greater the quality, the higher the value.

When cutting zircon, the mesa of the faceted gemstone is required to be perpendicular to the optical axis, so that people cannot see the back facet ghost and pleochroism when observing in the direction of the mesa.

The gems similar to zircon include diamonds, aquamarine, chrysoberyl, spinel, safir, synthetic cubic zirconia, synthetic rutile, glass, dll.. Zircon is characterized by high refraction, strong gloss, high birefringence, and numerous spectral absorption lines, which are the main distinguishing characteristics of zircon.

Thailand and Sri Lanka are the main producers of zircon. Sri Lanka is known for producing zircons of various colors, and Thailand is the main source of gem-quality zircons. Other producing countries include Myanmar, Perancis, Australia, and Tanzania. Our country also produces gem-grade zircon. Red zircon is produced in Penglai, Hainan. Fujian Minghong produces colorless or white zircon giant crystals.

 

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