Variable product page or template
Label the cheapest and dearest option clearly.
Each example below is the actual published output of the Variation price bounds widget for sample WooCommerce variable products. Merino scarf has Grey at £24.00, Navy on sale at £28.00 (regular £32.00) and Red at £36.00.
Default settings on the Merino scarf page: the lowest and highest current variation prices with their labels and an en dash.