[1][2][3] It has a working relationship with fellow mixed martial arts promotion Deep presided by Shigeru Saeki (also the Jewels supervisor).

[4] After the women MMA promotion Smackgirl faced severe financial difficulties caused by the unexpected departure of major sponsors and television network deals, an executive from Japanese event production company Archery Inc., Yuichi Ozono, formed the company Marverous Japan and acquired the assets and rights formerly belonging to Smackgirl parent company Kilgore.

Seo Hee Ham at Jewels 17th Ring on December 17, 2011 in Tokyo, Japan 2. def.

Saori Ishioka at Deep Jewels 6 on November 3, 2014 in Tokyo, Japan A four woman tournament was scheduled prior to Deep Jewels 28 to crown the promotions first Microweight Champion with the challengers being Emi Sato, Mizuki Furuse, Suwanan Boonsorn and Yasuko Tamada with Moe Sasaki as reserve.

Furuse and Boonsorn advanced to the final which was scheduled to take place at Deep Jewels 29 before the COVID-19 pandemic, however this event and the match couldn't be rescheduled when the promotion returned with the show.