[Notice] Adult Sebonstar will be discontinued on March 31st

“We want as many people as possible to enjoy jewelry.”
“We want to make everyone smile with the brilliance of jewels.”

With this hope in mind, we are a company that disseminates a lot of information about jewelry.

He manages Japan's largest gemstone information media ``Karatz GemMagazine'' and the gemstone mail order site ``Karatsu STORE,'' gives lectures at GIA and the International Jewelry Exhibition (IJT), and holds lectures for elementary school students and gemstone lovers in Tokyo. We are holding targeted events.