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We at Constants & Variables are proud of the unique product we manufacture. We guarantee the highest quality stones and all of our base metals are sterling silver or gold-filled. Each piece is handmade by skilled crafters and examined for quality and strength. We will repair or replace any necklace against breakage or defect for up to 1 year from date of purchase with return of the original components.

If for any reason you are dissatisfied with your purchase of a Constants & Variables Pi, Golden Ratio, Pythagoras’ Constant or Speed of Light necklace we will refund your money completely up to 30 days from date of purchase with return of the necklace.

If for any reason you are dissatisfied with the purchase of your Constants & Variables Custom Date necklace we will refund your purchase amount minus a $35.00 labor/restocking fee with return of the necklace.