solid rose gold earrings Basic quality evaluation of sapphire

Sapphire is a symbol of calmness and wisdom. Sapphire has a lofty status in European and American countries. In Europe, sapphire blue is known asRoyal Blue”. In the United States, sapphire is also designated asnational stone”. “The Duke of Windsor once gifted a sapphire ring to his beloved wife as a gift of love. Sedertdien, sapphire has also been passed down as a letter of faithful love.

The quality evaluation of sapphire is mainly based on color, kwaliteit, helderheid, transparency and cut. The primary factor of economic evaluation is color, followed by quality, clarity and transparency.

(1) Kleur. One type of high-quality sapphire is represented byKashmiri” saffier (cornflower blue); the second is represented by the deep blue high-quality sapphire produced in Mogok, Burma, based on its rich color and purity.

(2) Kwaliteit. High-quality sapphires above 1 ct are not uncommon, so the larger the sapphire, hoe beter.

(3) Helderheid. Sapphire has different requirements for the evaluation of clarity. Byvoorbeeld, some sapphires contain rutile inclusions inside, which interfere with light and make the surface produce silky brilliance. They are also extremely valuable and high-quality gems. The clarity of sapphire is better than that of ruby, and it is more demanding. Oor die algemeen, it is required to be flawless with naked eyes.

(4) Deursigtigheid. Sapphire has less impurities than ruby, and generally requires the higher the transparency, hoe beter.

(5) Cut work. Consistent with ruby ​​evaluation elements.

In kort, the main evaluation of sapphire is: in addition to quality, it is consistent with the evaluation elements of ruby. The quality of blue sapphires is roughly divided into the order of origin: Kashmir, Mogok in Myanmar, Pailin in Cambodia, Sri Lanka, Thailand, Montana, Shandong, Sjina, and New South Wales, Australië.

 

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