Erua Audio Miro is a serious upgrade cable made of silver-plated copper. It's priced at 4888 Hongkong dollars, which is about 630USD.
third iteration of the vastly popular HE1000 series from Hifiman. It uses some tech that you can find in their flagship Susvara, and it's priced at $3500.
Erua Audio Tawa is a high-end upgrade cable made of gold plated silver & palladium plated silver. It's priced at around $1299.