In 1476, Flemish diamond cutter Louis de Berquem pioneered symmetrical diamond faceting techniques in Bruges, revolutionizing the art of diamond cutting. His innovations allowed for greater brilliance and sparkle in diamonds, setting new standards in the jewelry industry. This advancement not only enhanced the aesthetic appeal of diamonds but also contributed to the economic significance of the diamond trade.

Louis de Berquem's diamond cutting innovation in 1476 elevated diamonds in Renaissance poetry as symbols of enduring love and artistic mastery. Poets like Petrarch used the imagery of diamonds to explore themes of beauty, desire, and the passage of time, intertwining personal emotion with artistic expression.