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Look, I know that I'm petty... There is no such thing as a red sapphire. Red sapphires are rubies. The ring that blonde man called a sapphire is red.
Sapphires are gemstones made of the mineral corundum that occur in many colors, such as blue, yellow, green, and pink. The only color that is not called sapphire is red. When corundum is red, it is classified as a ruby.
This means that rubies and sapphires are essentially the same mineral, just distinguished by color. A “red sapphire” is not a recognized gem type. If the stone is truly red corundum, it is always considered a ruby.