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rose gold plated necklace chain A gem that changes color-the formation and origin of alexandrite

게시 ~에 의해 Kingjy

~ 안에 1830, a gem that changed color was discovered in the Ural Mountains in Russia, namely alexandrite. This day happened to be the birthday of Emperor Caesar Alexander II of Russia, so he named him Alexandrite after the Emperor of Russia. It was also called “Alexandrite” in the market.

The color of alexandrite changes with the change of the environment, enjoying the reputation of “emeralds in the day and rubies in the night”. It is the gem with the best color-changing effect among all the gems that can change color, so it is also called “alexandrite”. As in the case of opals, only chrysoberyl alexandrite can directly call “allex”, and other gemstones with a discoloration effect must indicate their species.

The main producing areas of alexandrite are Russia, 스리랑카, 브라질, Madagascar and Tanzania, and the only producing area of ​​alexandrite that can produce cat-eye effect is Sri Lanka.

The quality evaluation of alexandrite is mainly based on color, 명쾌함, 투명도, cut and quality.

(1) 색상. The color evaluation of alexandrite is more complicated, not only requires pure body color, the greener the better under sunlight, the redder the better under light, and the color change effect is obvious, and the two colors have a greater contrast. It is also rare to find a chrysoberyl alexandrite that is emerald green in sunlight and red in light.

(2) Clarity and transparency. Alexandrite is the same as a gemstone of the golden emerald group, with good clarity and transparency. Because alexandrite is so precious, even if there is a little problem, it is also very valuable. Cat’s eye alexandrite is translucent to slightly transparent.

(3) Cut work. After being cut into faceted gemstones, alexandrite can produce strong brightness and good luster. 그러므로, the cutting is required to be as perfect as possible. For alexandrite with a cat’s eye effect, it should be cut into a curved gem.

(4) 품질. 0.3～0.4 ct are mid-range products, and the price of high-quality products weighing several carats can be comparable to emeralds and rubies.

Alexandrite has good hardness and toughness. It can be cleaned with an ultrasonic cleaning machine. Avoid high temperature, avoid collision, and store it separately to prevent damage.

 

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OEM/ODM 보석 제조업체 디자인 사용자 정의 보석

시작합시다 : mo@kingjy.com

 

광저우 징징 맞춤형 도매 반지 목걸이에 중점 925 보석류,스털링 실버 골드는 18K로 도금되었습니다,14케이,24K 옐로우 골드,화이트 골드와 로즈 골드.,고객의 요구 사항에 따라 레이저 조각으로 로고 브랜드 또는 기타 단어.

월별 생산 능력은 최대입니다 50,000 조각 팔찌 목걸이 귀걸이 링 보석.,보석 체인점,콘센트 상점,보석 도매기,트레이더 및 보석 브랜드 회사,Professional은 고품질의 맞춤형 보석 및 대량 생산을 제공합니다. 925 스털링 실버 보석 서비스.