A refined 18K white gold necklace, set with one natural oval mixed-cut sapphire displaying a blue, transparent color and good brilliance. The sapphire is accompanied by an official IGI Jewelry Report 78J0349724, confirming its natural origin and characteristics. According to the report, the sapphire shows indications of heating, a common and widely accepted treatment in the sapphire trade. Surrounding the center stone are 24 natural tapered baguette-cut diamonds, with a total estimated diamond weight of 0.21 carat, creating a sophisticated halo that enhances the elegance and sparkle of the piece. A timeless sapphire necklace, suitable for daily wear or special occasions, and an excellent choice for collectors, sapphire lovers, or as a refined gift. Ship from Thailand.