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Birthstone Collection

Your birth month, your style.

Our Birthstone Collection brings a pop of color and meaning to your everyday ring. Each one is inspired by the gemstone of the month — like garnet for January, amethyst for February, and turquoise for December.

Whether you’re wearing your own birthstone, stacking your loved ones’ months, or just vibing with a color you love, these rings are all about personal expression. And because they’re made from soft, breathable silicone, they’re as comfy as they are meaningful.

Choose from our signature Arc, Dual Layer, and Stacklet ring styles — and make it your own with custom engraving inside.

Meaningful, giftable, and made to move with you.

29 products

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Inlay Color
Ring BandWidth
Ring Shape
Gender
Peridot Green Breathable Silicone Ring For Women - Knot Theory
Peridot Olive Green Breathable Silicone Ring (5.0)
Sale price $19.99
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Amethyst Purple Breathable Pearly Silicone Ring for Women - Knot Theory
Amethyst Purple Breathable Pearly Silicone Ring (5.0)
Sale price $19.99
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Amethyst Purple Dual Layer Breathable Silicone Ring
Amethyst Purple Dual Layer Breathable Silicone Ring (5.0)
Sale price $24.99
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Cosmic Purple Braided Silicone Ring - Stackable Thin Band
Cosmic Purple Braided Silicone Ring - Stackable Thin Band (4.9)
Sale price $14.99
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Cosmic Purple Breathable Silicone Ring for Women and Men - Knot Theory
Cosmic Purple Breathable Silicone Ring (4.9)
Sale price $24.99
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Cosmic Purple Dual Layer Breathable Silicone Ring
Cosmic Purple Dual Layer Breathable Silicone Ring (5.0)
Sale price $24.99
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Pearl Green Emerald Pyramid Stackable Slim Thin Silicone Ring for Women - Knot Theory
Emerald Green Pyramid Silicone Ring - Thin Stackable Band (5.0)
Sale price $14.99
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Pearl Green Breathable Silicone Ring for Women - Knot Theory
Emerald Green Breathable Silicone Ring (5.0)
Sale price $19.99
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Emerald Dual Layer Breathable Silicone Ring
Emerald Dual Layer Breathable Silicone Ring (5.0)
Sale price $24.99
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Pearl Aquamarine Breathable Silicone Ring for Women - Knot Theory
Pearl Aquamarine Breathable Silicone Ring (5.0)
Sale price $19.99
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Blue Sky Dual Layer Breathable Silicone Ring
Blue Sky Dual Layer Breathable Silicone Ring (5.0)
Sale price $24.99
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Satin Chrome Red Breathable Silicone Ring for Men and Women - Knot Theory
Satin Chrome Red Breathable Silicone Ring (4.9)
Sale price $19.99
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Metallic Red Dual Layer Breathable Silicone Ring - Knot Theory
Metallic Red Dual Layer Breathable Silicone Ring (4.9)
Sale price $24.99
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Pearl White Braided Silicone Ring - Stackable Thin Band
Pearl White Braided Silicone Ring - Stackable Thin Band (5.0)
Sale price $14.99
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Pearl White Breathable Silicone Ring For Men and Women - Knot Theory
Pearl White Breathable Silicone Ring (5.0)
Sale price $19.99
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Pearl White Pyramid Stackable Slim Thin Silicone Ring for Women - Knot Theory
Pearl White Pyramid Stackable Slim Thin Silicone Ring for Women (5.0)
Sale price $14.99
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Silver Braided Slim Silicone Ring, Stackable Thin Band

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Silver Braided Slim Silicone Ring, Stackable Thin Band (5.0)
Sale price $14.99
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White Dual Layer Breathable Silicone Ring
White Dual Layer Breathable Silicone Ring (5.0)
Sale price $24.99
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Smooth Silver Breathable Silicone Ring For Men and Women - Knot Theory
Smooth Silver Breathable Silicone Ring (5.0)
Sale price $19.99
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Smooth Silver Dual Layer Breathable Silicone Ring
Smooth Silver Dual Layer Breathable Silicone Ring (4.9)
Sale price $24.99
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Metallic Blue Breathable Silicone Ring For Men and Women - Knot Theory
Metallic Blue Breathable Silicone Ring (5.0)
Sale price $19.99
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Metallic Blue Sapphire Pyramid Stackable Slim Thin Silicone Ring for Women - Knot Theory
Metallic Blue Sapphire Pyramid Stackable Slim Thin Silicone Ring for Women (5.0)
Sale price $14.99
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Sapphire Blue Braided Silicone Ring - Stackable Thin Band
Sapphire Blue Braided Silicone Ring - Stackable Thin Band (5.0)
Sale price $14.99
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Metallic Blue Dual Layer Breathable Silicone Ring - Knot Theory
Metallic Blue Dual Layer Breathable Silicone Ring (4.9)
Sale price $24.99
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