1 Ruby Classic Series: This is one of Chow Tai Fook's main series, with high-quality rubies as the main design elements, presenting elegant and gorgeous jewelry forms through exquisite craftsmanship and unique design.

2. Ruby Star Series: This series takes stars as the main design elements, and creates romantic and dreamy jewelry works through the sparkle of rubies and bright stars.

3. Ruby fashion series: This series is characterized by fashionable and simple design style, focusing on the collocation of ruby and other materials, showing the charm of fashion and personality.

4. Ruby Wedding Series: This series is mainly aimed at the wedding market, with ruby as the main design element, creating elegant and romantic wedding rings and accessories, making the couple more outstanding at the wedding.