4K crushed ice cutting is a brand-new cutting process, which is different from the previous machine cutting, which is all manual cutting. It is precisely because of this manual cutting that the color of the zircon shines more beautifully. Cubic zircon from crushed ice cut is of the best quality, reaching 5A+ grade. The 4k crushed ice cut is a new cutting process which unique cut gives zircons a shimmering crushed ice effect that is truly mesmerizing. These cubic zirconia gemstones are expertly crafted from premium materials for exceptional clarity, brilliance that shine like diamonds.