The Diamond Swap, or すりかえだいや, is a game in which the burglar has 10 seconds in between a blackout to covertly switch out one of the coveted diamonds with a fake. And, security must work together to spot the fake using clues in the subtle size differences in the diamonds. But be careful! There are also burglars hiding among the security. Don't let them fool you in the discussion...!

The Diamond Swap combines trying to spot the difference and tricking your opponents. All 30 diamond chips are slightly different in size. In this identity-concealing type game, you are divided into two groups: the burglars whose mission is to deceive, and security, who needs to see through the subtle size changes after the diamond swap.

The player who draws the "burglar" card steals one of the five authentic diamonds in the center and secretly replaces it with a fake from their hand. All within the time the security guards are counting to 10 with their eyes closed. After everyone has opened their eyes, as a group, everyone has to deduce which diamond has been swapped. Though, the differences in sizes are hard to distinguish.

竊賊在停電之間有 10 秒的時間用假貨偷偷換掉一顆夢寐以求的鑽石。而且，安全人員必須共同努力，利用鑽石細微尺寸差異中的線索來發現假貨。但小心點！保安人員中也藏有竊賊。不要讓他們在討論中捉弄你......！

Diamond Swap結合了試圖發現差異和欺騙對手的方法。所有 30 顆鑽石碎片的大小都略有不同。在這個隱藏身份的遊戲中，你被分為兩組：以欺騙為任務的竊賊和需要看穿鑽石交換後細微尺寸變化的保安。

抽到“盜賊”牌的玩家偷走了中心的五顆正品鑽石之一，並偷偷地用他們手中的假貨替換它。在保安人員閉著眼睛數到10的時間內。等大家睜開眼睛後，作為一個小組，每個人都要推斷出哪顆鑽石被交換了。不過，尺寸上的差異很難區分。