You can get Geeetech Silk PLA 3D Printing Filament Gradient 1.75mm 1kg [EU] for $26 using coupon code (in Banggood). It is from EU warehouse.Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
[EU Direct]Geeetech® Silk PLA 3D Printing Filament Gradient 1.75mm Vacuum packaging for 3D Printing
Latest coupon and price update (UTC):
Banggood ($26.00)
Banggood warehouse is located in Europe 
. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. I think you want to know if the price is good. I don’t want to misguide you about the price. I don’t know if it’s good, because I don’t have enough records in my database…
Link: Banggood product page
Price: $26
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was $23).
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).