diff --git a/src/server/game/mod/charge/Charge.go b/src/server/game/mod/charge/Charge.go
index c2266f38..2abda169 100644
--- a/src/server/game/mod/charge/Charge.go
+++ b/src/server/game/mod/charge/Charge.go
@@ -311,6 +311,9 @@ func (c *ChargeMod) InitChessShop(Emit []int) {
 				if ColorType == mergeDataCfg.CHESS_PRODUCT_SUB_TYPE {
 					Diamond = int(math.Pow(2, float64(ChessLv-1))/2.5 + 6.4)
 				}
+				if ColorType == mergeDataCfg.CHESS_PRODUCT_SECONDARY_TYPE {
+					Diamond *= 2
+				}
 				RandList = append(RandList, &Rand{ChessId: c, Diamond: Diamond})
 			}
 		}