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>Diameter:80mm(3.1 inch), Height:52mm(2 inch), Packed in a pink gift box. <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.