1.39 Ct. Blue Sapphire from Australia

This sapphire is a transparent, emerald cut blue sapphire weighing 1.39 carats, with dimensions of 8.21 x 5.50 x 3.11 mm, presented by The Natural Sapphire Company. The stone displays an emerald cut, a step facet design that produces broad, even planes of color and a refined, architectural appearance. The clarity is graded as very very slightly included, evaluated at eye level, indicating that the inclusions are minimal and do not detract from the gem when viewed without magnification. The color intensity is described as dark, yielding a deep, saturated blue that is both rich and stable in varied lighting conditions. The polish is excellent, contributing to crisp facet junctions and a smooth, reflective surface that elevates the overall presence of the gem. This sapphire has been heat treated, a widely accepted and permanent enhancement that optimizes tone and saturation, and the origin is Australia, which contributes to its distinct character among blue sapphires.

The emerald cut emphasizes color uniformity and clarity, and in this stone the cut proportions, paired with the excellent polish, allow for a broad table and balanced step facets that present color evenly across the face of the gem. The dark color intensity produces a velvety blue that reads as deep and elegant, making the gemstone highly suitable as a focal center stone. Transparency and the very very slightly included clarity grade mean the stone remains lively and visually clean to the unaided eye, while the step cut imparts a more controlled, sophisticated light return compared to brilliant cuts, rather than the sparkling scintillation of a brilliant cut. The heat treatment applied to this sapphire is stable and standard practice for enhancing blue sapphires, improving color without compromising structural integrity. With a Mohs hardness of 9, sapphires are well suited for everyday wear, offering strong resistance to scratching, and the emerald cut profile with its substantial table and straight lines lends itself to secure bezel and prong settings that protect the corners while showcasing the stone.

For an engagement ring, this 1.39 carat Australian emerald cut blue sapphire is an excellent choice for those seeking a timeless yet distinctive center stone. The stone’s size and proportions provide a noticeable presence on the finger without overwhelming delicate ring designs, and the deep blue tone conveys a classic, sophisticated aesthetic. Design options that complement the emerald cut include a solitaire setting for a minimalist, modern expression, a halo of small diamonds to add contrast and perceived size while preserving the clean geometry of the center stone, or a three stone arrangement with tapered baguettes for a cohesive, linear look. The stability of the heat treated color and the inherent durability of sapphire support daily wear, and practical setting choices such as lower profile prongs or a protective bezel can enhance comfort and longevity for an active lifestyle. The clarity and excellent polish mean that the stone will photograph and present well under close inspection, maintaining elegance in both intimate and formal settings.

The Natural Sapphire Company presents this gemstone with attention to accurate gemological description and practical guidance for setting and care, emphasizing the attributes that make it a compelling engagement option. The combination of an emerald cut that highlights clarity and form, a rich dark blue color that conveys depth and permanence, and solid gemological characteristics including very very slightly included clarity evaluated at eye level and excellent polish, create a balanced, enduring choice for a center stone. Whether the design intent is contemporary simplicity or refined classicism, this Australian emerald cut blue sapphire offers a reliable and attractive foundation for an engagement ring that will perform well with everyday wear while retaining a distinct, elegant presence.