This delicate ruthenium-plated necklace features a strand of crystal beads in Silver Shade, Black Diamond, Jet, Jet Hematite and Dark Indigo.
精致的镀黑铬色项链装饰一排银色魅影水晶珠子。黑钻石色，黑色，黑矿色和深靛蓝色水晶珠子。
It first appeared when residents of India's Indus Valley discovered that the leaves of indigo plants turned dark blue when dried and, as fermented pulp, clung attractively to garments.
它的第一次出现，是印度河谷的居民发现木蓝属植物的叶子在干枯之后变成深蓝色，且发酵之后的浆状物会牢固地印在衣服上。
As the indigo has the unusual dark blue, it takes the indigo dyestuffs representative, which is paid attention to for a long time.
靛蓝作为靛族染料的代表，由于它具有不寻常的深蓝色，一直倍受关注。
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