1.65 Ct. Blue Star Sapphire from Ceylon (Sri Lanka)

A rare and luminous treasure, this translucent Ceylon star sapphire weighs 1.65 carats, a weight that elevates its rarity and investment appeal. At 6.74 x 6.02 x 4.12 mm, the oval cabochon has been shaped with expert care to produce a centered six ray star that crosses the dome with crisp definition when light is directed to its surface. The cabochon cutting style is the traditional choice for star sapphires, and here it allows the asterism to command attention while preserving as much weight and natural material as possible. In the world of gem buying, weight is not simply a number. An untouched, natural star sapphire of 1.65 carats, with fine polish and attractive translucency, is significantly rarer than smaller specimens, and that scarcity directly enhances its value for collectors and connoisseurs alike.

This gem carries a slightly included clarity grade at eye level and a light color intensity that imparts a soft, ethereal blue that is distinctly Ceylon in character. The excellent polish across the dome maximizes the star effect and the gem’s internal glow, while the absence of enhancement confirms that this piece is wholly natural and untouched. No enhancement, natural origin, cabochon shape, and refined asterism combine to make this a collector quality piece. Because sapphires from Sri Lanka are celebrated for their delicate hues and classical star phenomena, pieces in this weight class are uncommon, and owning one places you among a select group of buyers who appreciate provenance, integrity, and natural rarity. The Natural Sapphire Company presents this gem as a singular offering, an opportunity to acquire a piece that is both wearable and investment grade.

For the discerning buyer imagining the perfect setting, this sapphire’s dimensions and weight make it ideal for a refined ring, a bespoke pendant, or a signature pair of heirloom earrings when matched with complementary stones. As with all rare natural sapphires, provenance and treatment status matter, and this Ceylon star sapphire’s unenhanced origin and expert cut tell a clear story of authenticity and care. If you seek a truly exclusive gem that combines measurable substance with the poetic charm of a star, this 1.65 carat oval blue star sapphire from The Natural Sapphire Company stands apart as a piece to be cherished across generations.