세계의 에메랄드 발견 과정으로 보면, 에메랄드의 주요 원산지가 남아메리카의 콜롬비아임을 아는 것은 어렵지 않습니다., 많은 전설적인 에메랄드 보물도 콜롬비아에서 유래되었습니다.. 1. 데본 에메랄드 데븐셔 에메랄드 (데븐샤이어 에메랄드), 19세기 콜롬비아 무주오(Muzuo) 광산 지역에서 발견, [...]
카테고리 아카이브: 보석 뉴스
Guinness Emerald Crystal, weighing 1759ct, is produced in the Coscuez mining area in Colombia. It is also one of the largest high-quality emerald crystals found in the world. It has created the world's largest high-quality gem-level emerald Green Guinness World Records. The length of the crystal is 2-2.5 times the diameter, the color is bright [...]
Opal is also a gemstone with a long history and is called precious opal in mineralogy. 에서 200-100 기원전, people began to use opals as gems. 고대 로마에서는, opals were not only well-known, but also extremely valuable. 플리니, the ancient Roman naturalist, once gave a very wonderful description of Opal: "Opal has a ruby-like [...]
다이아몬드 계열 전체에서, 진짜 블랙 다이아몬드도 매우 드물다. 검은색 내포물이 많이 함유된 다이아몬드는 일반적으로 품질이 낮은 다이아몬드로 간주되며 산업용으로만 사용할 수 있습니다.. 드 그리스코노 스피릿 다이아몬드(De Griscono Spirit Diamond)는 세계에서 희귀한 보석급 블랙 다이아몬드입니다., and it is also the largest cut black diamond [...]
Amsterdam Diamond (Amsterdam Diamond), produced in South Africa, is also a famous black diamond. The rough diamond weighs 55.85ct, is dark black and opaque, so it is also the same under strong light, but this diamond has a very strong luster. The diamond was cut and polished by Amsterdam Drucker & Sons. From October 1972 [...]
(3) Cullinan No. 3: It is pear-shaped and weighs 94.40ct. It was inlaid on the top of Queen Mary's crown. (4) Cullinan IV: It is in the shape of a long-angled ladder and weighs 63.70ct. It was inlaid on the circular edge of Queen Mary's crown. The Cullinan No. 3 diamond is now set as [...]
The naked eye identification of rough diamonds should start from the following aspects. (1) Observe the gloss Since diamonds have a typical diamond luster, which is an important feature that distinguishes other colorless and transparent minerals (or materials), diamonds can be distinguished from other imitations by using their luster characteristics. When observing the gloss of [...]
The unique properties of diamond make it leave some cutting characteristics during processing, these characteristics are not possessed by diamond imitations, so it is possible to identify diamonds and imitations. 1. Facets, edges and corners The high hardness of the diamond determines that the diamond has a flat surface, straight edges, and sharp corners, ~하는 동안 [...]
~ 안에 1970, Tel Aviv was already one of the world's major diamond cutting centers. From its initial focus on cutting small diamonds, Israel has transformed into a major cutter of large and fancy diamonds in the 1980s. The diamond processing factory in Israel is known as the model of the highest level of diamond technology [...]
Antwerp has dominated the gem trading in Europe since the Middle Ages. 15세기에, it has become the center of diamond cutting and trading. In the 20th century, it became the center of cutting and grinding large diamonds. 오늘, it has undoubtedly become the world's most rough and cut diamonds. Trading hub for [...]