1.09 Ct. Greenish Blue Sapphire from Madagascar

This 1.09 carat round greenish blue sapphire from Madagascar is a fine example of natural gem material presented by The Natural Sapphire Company, transparent and lively, ideal for a discerning client seeking an unenhanced stone with excellent optical qualities. The gem measures 6.42 x 6.42 x 3.27 mm, and its round outline combined with a mixed brilliant cut produces an engaging balance of scintillation and depth. The color is best described as greenish blue with an intense color intensity, a desirable saturation that reads richly in both daylight and warm indoor light. Clarity is graded as very slightly included at eye level, which means the small inclusions are not distracting to the naked eye and in many mounting styles they will be effectively hidden, while under magnification they attest to the stone being natural and untreated. The polish is excellent, which allows the facets to deliver crisp light return and a finely finished presentation from table to girdle.

In discussing grading and what makes this sapphire valuable to an educated buyer, it helps to focus on the combination of color, clarity, cut and origin, rather than any single characteristic in isolation. Color is the primary determinant of value for sapphires, and an intense greenish blue that remains transparent is especially attractive because it avoids the muddy appearance that can come with too much green, and the overly dark look that can accompany saturated blue sapphires. The mixed brilliant cut used in this round shape maximizes brilliance while retaining desirable weight and face up size, and an excellent polish ensures that light is transmitted and reflected without interference. The very slightly included clarity grade indicates that the stone is eye clean for most observers, which enhances appeal and durability because inclusions that are visible only under magnification tend not to compromise toughness. No enhancement has been applied, which significantly increases collectability and long term value for buyers who prioritize natural origin and minimal treatment.

For custom jewelry designers and clients considering a bespoke piece, this sapphire is particularly well suited because of its classic round outline, measured proportions and manageable depth. At 6.42 mm in diameter, the stone offers a substantial face up presence that works beautifully in solitaire engagement rings, three stone settings, halo designs, and pendant applications, while remaining comfortable for everyday wear. The pavilion depth of 3.27 mm is moderate, which helps the gem sit well in common setting styles, reducing the need for excessive mounting height, and allowing the cutter s proportions to preserve light performance. A round shape is the most versatile for setting, permitting secure prong seats, elegant bezel interpretations, or modern tension styles depending on the desired aesthetic, and because this sapphire is transparent with intense color it will retain strong visual impact even when designed into pieces that combine other gemstones. For clients seeking a matched pair for earrings, the round geometry simplifies color matching and facet alignment.

Provenance from Madagascar adds another layer of desirability, as the island has become known for producing sapphires with distinct and attractive color varieties, and for material that often exhibits high clarity and good cutting potential. Lack of heat treatment or other enhancements means the gem represents a natural state which is favored by collectors and buyers looking for authenticity and long term integrity. At The Natural Sapphire Company we document origin and treatment status, and we can provide guidance on certification options and mounting recommendations to protect and display the stone s best qualities. For educated buyers who value transparency in both gemological terms and in provenance, this greenish blue 1.09 carat round sapphire combines practical dimensions, superior polish and an intensive natural color to form a compelling centerpiece for a custom commission, and our team is available to discuss settings, metal choices, and design approaches that will showcase the sapphire s natural beauty and preserve its value over time.