0.71 Ct. Greenish Blue Sapphire from Madagascar

This oval greenish blue sapphire is a precisely described collector quality gem from The Natural Sapphire Company, presented with clear gemological details that an educated buyer will appreciate. It weighs 0.71 carat and measures 6.09 by 4.30 by 3.21 millimeters, giving it a refined oval outline with a length to width ratio of approximately 1.42. The stone is cut in a mixed brilliant style, which combines a faceted brilliant crown with a step or modified pavilion to balance scintillation and color retention. Face up the gem displays an intense color intensity, a greenish blue hue that is lively without appearing overly dark, and an excellent polish that maximizes light return and surface finish. These objective parameters allow you to anticipate how the stone will perform in a finished setting, how much presence it will have on the finger or pendant, and how it will interact with different lighting environments.

Clarity and finish are important for both aesthetic appeal and long term value, and this sapphire is graded as very slightly included when evaluated at eye level. That description indicates small, well-dispersed inclusions that do not distract from the gem’s overall appearance and are unlikely to be visible in day-to-day wear, particularly once set. The excellent polish ensures crisp facet boundaries and strong mirror reflections, which enhance both brilliance and the perception of depth in the greenish blue color. The sapphire has been heat treated, a standard and permanent enhancement in the trade that improves color saturation and clarity by altering internal features in a controlled manner. Heat treatment is widely accepted by connoisseurs and does not compromise the structural integrity of corundum; it delivers consistent, stable color enhancement that will remain durable with normal wear. Origin is Madagascar, a region that has produced a wide range of attractive sapphires, often characterized by strong, saturated hues and favorable clarity for cutting, which is reflected in the attractive tone and clean presentation of this gem.

From a custom jewelry perspective this sapphire is an especially versatile choice. At 0.71 carat and with dimensions of 6.09 by 4.30 millimeters, it is large enough to serve as a refined solitaire center in a delicate ring, as the focal point of a three-stone or halo setting, or as a striking centerpiece for a bespoke pendant. The oval shape is particularly flattering in finger jewelry because it visually elongates the finger and offers more table surface area than a round gem of the same weight, producing stronger face-up presence. The mixed brilliant cut enhances sparkle while preserving color, so settings that allow light to enter and exit freely, such as four or six prongs or a minimal bezel with open gallery work, will showcase both scintillation and hue. For designs where protection is a priority, a full bezel can give excellent security without significantly diminishing the gem’s perceived size thanks to the oval outline and good spread. The stone’s 3.21 millimeter depth is a practical dimension for most ring and pendant mountings, enabling secure bezel or prong seats and predictable sizing for bespoke settings and fabrication.

An informed purchaser will value this sapphire for a combination of measurable gemological qualities and practical design advantages. The intense greenish blue color is a distinctive and fashionable variation within the blue sapphire spectrum that pairs well with a range of metal choices. White metals such as platinum or white gold will emphasize the cooler blue notes and produce a contemporary look, while yellow or rose gold can warm and intensify the greenish component for a vintage or romantic aesthetic. Because the stone is heat treated, it offers the polished appearance and color stability sought after in fine custom pieces. The very slightly included clarity grade preserves value while allowing a lower premium than flawless material, making this an efficient choice for buyers who want genuine natural color and presence without the cost of the rarest top colorless stones. Additionally, Madagascar as an origin is known for producing sapphires with attractive color and good cutting potential, and provenance from this region is often favored by designers seeking distinctive yet reliable material for bespoke work.

At The Natural Sapphire Company we emphasize transparent information and responsible sourcing, and this sapphire comes with the specifications and assessment details that collectors and custom designers require to make a confident choice. For bespoke commissions our bench can design settings that exploit the oval outline and mixed brilliant faceting, whether you prefer a minimalist, open-back mount to maximize brilliance and face-up color, a protective bezel for everyday wear, or a halo and side stone ensemble to increase perceived size and complexity. Routine care is straightforward; freshly set sapphires are stable in normal wear and resistant to most household exposures, and the heat treatment used in this stone is a permanent enhancement. If you would like technical drawings, CAD renders, or metal and setting samples to evaluate how this 0.71 carat Madagascar oval will look in a finished piece, our design consultants at The Natural Sapphire Company are available to assist with measurements, ring size simulations, and recommendations that preserve the gem’s optical attributes. This sapphire represents a balanced offering of intense natural color, durable treatment, and practical dimensions that make it a highly versatile and tasteful choice for custom jewelry.