THE DEVELOPMENT AND IMPROVING GEMS OF BLUE SAPPHIRE FOR JEWELRY MAKING WITH THE CONCEPT OF DEVELOPING GEMSTONE CUTTING

Abstract

Research on the development and upgrading of sapphires for jewelry production with the concept of developing facets is a research and development using a combination of qualitative and quantitative research and participation. The objectives of the research are (1) to synthesize suitable shapes and cutting styles for sapphires used in jewelry, and (2) to design and develop sapphire gemstones using facet development principles. A mixed-methods approach was employed, integrating both qualitative and quantitative research, along with participatory techniques. The study was conducted with the Ban Bo Kaeo Gem and Jewelry Group, located in Sai Yoi Subdistrict, Den Chai District, Phrae Province, using purposive sampling. Three research instruments were utilized: interviews, questionnaires, and focus group discussions. Data were analyzed using statistical software, with percentage, mean, and standard deviation as key metrics. The research was conducted synthesizing sapphire shapes plays a crucial role in minimizing raw material loss and maximizing the aesthetic potential of the gemstones. Popular and suitable shapes include: Oval reduces material loss and enhances color saturation.Cushion adds soft brilliance.Round though it may result in higher material loss, it offers excellent symmetry and sparkle, making it ideal for high-quality sapphires.Pear suitable for luxurious jewelry designs and visually enlarges the gemstone. In terms of design and development, the study emphasizes tailoring sapphire shapes based on the raw crystal structure and light dispersion direction. Oval and cushion cuts are preferred for maximizing material usage, while round cuts are ideal for high-quality sapphires due to balanced light reflection. Pear and marquise shapes help increase perceived value and size.