River Rock Coaster Set

Regular price $40.00 Free Shipping

759 in stock

Our minimal coasters do more than eliminate watermarks—they dry instantly! Created with diatomaceous earth, Dorai’s River Rock Coasters are both sustainable and designed to rapidly remove moisture.

Each cup coaster is a different shape and pattern, emulating the unique, natural qualities of stones. The River Rock Coaster Set includes four coasters that pair perfectly with a beverage of your choice.

Dimensions: 4” x 4” x 1/3"

  • Made with eco-friendly, non-toxic, and long-lasting materials.
  • Dries instantly thanks to Diomat®, our sustainable combination of diatomaceous earth and recycled paper.
  • Helps prevent bacteria growth by eliminating the moist environment where mold thrives.
  • Functional design created for the modern home.

Cleaning Instructions: If your stone gets stained, it can be cleaned in two ways. For light stains or scuffs use the included sanding tool to gently rub off any marks. We recommend doing the sanding in a well ventilated area. For more extreme stains, use a small amount of hydrogen peroxide or bleach to treat the area.

Why Get the Coasters?

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Made from Algae

Dorai Home products are made from compressed diatomaceous earth and recycled paper.

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Dries Instantly

Diatomaceous earth holds up to 150% of its weight in moisture and evaporates in seconds.

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Eco-Chic Design

Dorai creates sophisticated home solutions made from high-quality, sustainable materials.

Meet the Modern Coaster

Our chic coasters do more than eliminate watermarks - they dry instantly!

Dorai Coasters with drink
Dorai Coasters with plant and mug

Customer Reviews

Based on 75 reviews
Margo Roberts

I love them - thank you!

An annoying problem is finally solved!

I hate hate hate when my coaster sticks to the bottom of my glass due to condensation. Inevitably it slides off and drops on the table or scares the dog or something silly like that. We bought the bath mat version (both to use as a bath mat and another for the dog water dish) and I was pretty excited to see the coasters! They are absolutely fabulous and completely solve this cocktail class condensation issue. Love them!

Good quality

Good quality. Soft underfoot. Takes a bit of time to dry. Wish it was larger

Dish Drainer

I love all my Dorai products. They are beautiful and clean looking.

Heehyoung Lee

River Rock Coaster Set