Group 1 - The article highlights the launch of new jewelry collections by various brands, celebrating themes of autumn and reunion [1][18]. - Lao Feng Xiang held a grand showcase in Shanghai, introducing its new collections, including "Treasure Gold" and "Feng Xiang Joy" series, emphasizing traditional craftsmanship and cultural values [2][5]. - The "Treasure Gold" series features new pieces "Na Ji" and "Cang Fu," which incorporate traditional auspicious symbols and intricate craftsmanship [2][5]. - The "Feng Xiang Joy" series includes the new "Yu Yue" collection, which symbolizes vitality and joy, enhancing the emotional value of the brand [5]. - The "Qi Ji" series for the Year of the Horse reflects the theme of success and hard work, aligning with the brand's cultural narrative [8]. Group 2 - Meng Jin Yuan launched two new gold jewelry series, "High Light Moment" and "Red Rhythm East 2.0," focusing on unique selling points and interactive design [12]. - The "High Light Moment" series utilizes proprietary technology to enhance the shine and durability of the jewelry, achieving a 45% increase in hardness compared to standard gold [12]. - The "Red Rhythm East 2.0" series incorporates traditional elements and aims to enhance social interaction through its design [12]. Group 3 - Buccellati, an Italian luxury jewelry brand, showcases its craftsmanship through collections that blend Western and Eastern cultural elements, emphasizing themes of reunion and romance [18][19]. - The Macri series features a unique engraving technique that gives a satin-like finish, symbolizing the beauty of reunion [19]. - The Opera Tulle series draws inspiration from floral patterns, showcasing the brand's ability to merge vibrant and serene elements [21]. - The Ramage series captures the essence of autumn with intricate designs that reflect nature's beauty [24]. Group 4 - Chow Tai Fook launched the "Timeless Harmony" high jewelry series, inspired by Chinese philosophy and architecture, aiming to convey the concept of harmony between heaven and earth [27][28]. - The series utilizes high-quality jade and diamonds to represent geometric forms that reflect traditional Chinese aesthetics [27][28].

Group 1 - The core distinction between gold and red gold is that gold is a single precious metal, while red gold encompasses various gold-colored metals, which may or may not contain gold [6][8] - Gold is known for its stable investment value and is primarily used in high-end jewelry, whereas red gold is often used in everyday accessories and its value depends on the specific composition [8][10] - Consumers seeking investment value should opt for gold items with clear purity markings, while those interested in color variety may prefer red gold, but should be cautious of low-value metals marketed as red gold [10] Group 2 - Gold has been utilized by humans since 3000 BC and is characterized by its bright yellow color and excellent malleability, requiring alloying with other metals for jewelry production [3] - Red gold can refer to high gold content alloys, such as 18K gold (75% gold and 25% other metals), or entirely copper products treated to appear red, showcasing a wide range of color options [6] - The market for jewelry reflects a blend of aesthetic appeal and investment potential, with gold symbolizing wealth and eternity, while red gold offers diverse color expressions [10]