Is the left straight grain on the back of Xiangfu ingot valuable?

This is worthless.

The collection value of Xiangfu Yuanbao is not high, but it has high cultural value. Generally, the price in the market with good quality is 100 yuan, while the ordinary version of Xiangfu ingot is extremely rare and of low value. About 10 yuan, you can buy an embroidered and auspicious gold ingot, because the word auspicious symbolizes good luck, lucky strike and longevity.

Xiangfu Yuanbao was cast during the Xiangfu period in Song Zhenzong in the Northern Song Dynasty from 1008 to10/6, about 1000 years ago. "Xiangfu Yuanbao", the royal calligraphy of Zhao Heng, Song Zhenzong, is an authentic copy, which is read from top to bottom, left and right, and has a round square hole. Qian Wen has a diameter of about 24mm, a coin thickness of 1.4mm and a weight of 3.5g.