Just like FIVE , RIAJ has given Party Queen a Gold certification of 100,000 copies
http://www.riaj.or.jp/data/others/gold/201203.html
This certification is based off the total numbers of CDs and DVDs sold to retailers.
RIAJ hands out these certifications based on the following standards:
Gold – 100,000 units sold
Platinum – 250,000 units sold
Double Platinum – 500,000 units sold
Triple Platinum – 750,000 units sold
Million – 1,000,000 units sold