0.82 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.82 carat round blue sapphire presents a refined balance of color, cut, and proportions that make it an excellent choice for an engagement gemstone. The stone measures 5.17 x 5.16 x 3.71 mm, and is faceted with a mixed brilliant cut that combines a faceted crown with a brilliant pavilion to maximize scintillation and depth of color. The pavilion depth yields a depth ratio of approximately 71.8 percent, a proportion that contributes to the vivid saturation visible from the table and through the crown. The sapphire is transparent, with a clarity grade of slightly included when evaluated at eye level, and has an excellent polish that enhances light return and surface finish. The combination of a mixed brilliant cut and meticulous polishing produces a focused, lively face up appearance while preserving the natural character of the stone.

Color and provenance are central to the appeal of this sapphire for an engagement ring. The stone exhibits vivid blue color intensity that reads as deep, true blue in daylight and under jewelry lighting, a quality associated with fine Ceylon, Sri Lanka material. Origin from Ceylon, Sri Lanka contributes to the gem s optical character, offering a saturated blue with lively undertones that are well suited to a center stone application. The sapphire has been heat treated, a stable and widely accepted enhancement that improves clarity and color while remaining permanent under normal wear conditions. Slight inclusions are consistent with natural formation and typically have no impact on durability, especially with the inherent hardness of corundum which rates nine on the Mohs scale, making sapphire suitable for daily wear in engagement settings.

When considering this sapphire for an engagement ring, its measurements and visual presence support a range of classic and contemporary designs. At just over five millimeters in diameter, the stone offers a refined, elegant presence on the finger, and can serve as a confident solitaire or as the focal point within a halo or three stone composition. A bezel or low profile setting can provide additional protection for daily wear, while prong settings will maximize light exposure and brilliance. The mixed brilliant cut ensures an attractive play of light, and the excellent polish enhances the stone s surface luster, producing a finish that photographs and presents well. The Natural Sapphire Company discloses the stone s heat treatment and origin, and our specialists can advise on mounting options that respect the gem s proportions and protect its integrity. For prospective engagement ring clients seeking a naturally derived, vividly colored sapphire with measured proportions and enduring hardness, this 0.82 carat Ceylon sapphire offers a balanced and enduring choice.