Aliexpress
Click here… to search for Xiaomi Circle Joy 4Pcs Stainless Steel Ice Cubes on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (19.79 USD): BGTY704CP
Coupon (19.79 USD): BG10OFFAFF
Coupon (19.79 USD): BGwhielabel
(CouponsFromChina.com tip: you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGGR227, AFfbG10, 502C6B, bGpAnDacHeCk, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGCAMP01, BGZPBC15, BGCuponation10
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for Xiaomi Circle Joy 4Pcs Stainless Steel Ice Cubes is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).