ovals 18h13. Crystals in frames. Crystals for embroidery. White. 4120
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Crystals with brilliant-cut diamonds in frames.
Crystal K9 is a borosilicate glass with 10% lead oxide.
It is harder and stronger than crystal, so it does not form chips and scratches. Therefore, it is also used for the production of optics and luxury chandelier crystals.
Like any crystal, K9 refracts light, giving a luxurious glow.
The quality of K9 crystals largely depends on processing/polishing. I was looking for a great factory for a long time, I cut off many of them until I met them!
Premium quality, excellent polishing, neatest, no chips, no scratches, perfectly smooth cut. Crystal clear, without bubbles and irregularities. The back coating is smooth and durable, does not peel off, does not peel off.
I was deliberately looking for crystals with a reduced content of lead oxide. In ordinary crystal, it is 30%, which gives a more iridescent glow, but more brittleness, since it softens the glass for better polishing. I have worked with such a crystal before, it can very easily break when falling, and its edges are especially fragile, there are chips. In the end, I refused for good. With K9 crystals, this does not happen at all.