You'd be really lucky if you found one of these washed up on the beach!
Message in a Diamond Bottle price in Growtopia: sells for about 25 WL, buyers pay about 15 WL (median of 14 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: NVA, LESBE, TAPTUM, KEY2, NOELL