This pendant symbolizes two snakes eating themselves. Whatever that means, it also causes a luck dragon to follow you around! Note: it's the dragon that's lucky, not you. I guess you're just lucky to hang around with it!
Lucky Pendant price in Growtopia: sells for about 11 BGL, buyers pay about 2 BGL (median of 17 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.