longwin 30mm (1.2 inch) crystal diamond paperweight pirate gems birthstone table decorations christmas centerpiece gift for kids multicolor gift packing longwin what is k9 crystal:<br>k9 crystal is one of the highest quality optical glass -crystal, k9 has the same properties as 24% leaded crystal, as looks the same and polishes, and shines - sparkles the same as 24% leaded glass, but doesn't have the lead and is lighter that leaded glass.<br><br>diamond symbolize eternal love.<br><br>these gems are machine polished, this technology make the gems shaped well and more glittering and eye-catching. it can be used as wedding, party, home, office decoration and any festival gift.