5.63 Ct. Blue Sapphire from Madagascar

This C.Dunaigre certified Blue 5.63 carat oval sapphire from Madagascar represents a rare convergence of size, color, and clarity, a combination that is increasingly difficult to find in the current market. At 5.63 carats this stone immediately stands apart from the more common 1 to 3 carat sapphires that make up most commercial inventories, and its substantial weight gives it an imposing presence in any jewelry setting. The oval dimensions of 12.31 by 9.37 by 5.84 millimeters provide a broad, elegant spread that reads larger on the finger than many stones of comparable carat weight, and the mixed brilliant cut maximizes scintillation while preserving deep, vivid blue color saturation. The clarity grade is eye clean at eye level, an important factor for larger sapphires where inclusions tend to become more visible as size increases. The stone has no enhancement, an increasingly rare attribute, and an excellent polish that ensures superior light return and faceting precision. For buyers seeking a dramatic, investment grade blue sapphire, this piece offers a clear advantage over smaller, clarity compromised, or heat treated alternatives.

The weight of this sapphire is one of its most valuable attributes, and understanding why weight matters will clarify why this stone commands attention and premium value. In the sapphire market value does not increase in a simple linear fashion with carat weight. Instead, price per carat escalates as stones grow larger, particularly for well colored and clean examples. A 5.63 carat sapphire like this one sits in a tier where supply thins and collectors begin to compete for the best available examples. Because larger sapphires form under geological conditions that are less common, the frequency of eye clean, vivid color stones at this weight is low. When you compare this stone to smaller stones of similar hue and clarity, the larger stone will often command multiples of the per carat price of the smaller stones, reflecting rarity and presence. Beyond market math, the aesthetic effect is important, the larger weight translates into a more luminous surface area, stronger color absorption and reflection, and a presence that defines a piece of jewelry rather than complementing it. For clients who prioritize both statement and long term value retention, that combination of size and quality makes a meaningful difference.

Comparing this Madagascar origin, untreated sapphire to other options commonly available clarifies its uniqueness and competitive advantages. Many market stones are heat treated to improve color and clarity, a practice that is widely accepted but which reduces rarity and often affects resale value. By contrast, a natural, no enhancement sapphire, particularly one backed by C.Dunaigre certification, provides provenance and transparency that appeals to discerning buyers. When placed alongside heated sapphires of similar color, an untreated example will typically retain higher interest among collectors and investors, especially when it is eye clean at this weight. Origin matters as well, Madagascar has become known for producing vivid blue sapphires with strong color and attractive crystal habits, and this sapphire displays that signature vividness without the need for enhancement. The mixed brilliant cut chosen for this gem balances the need to preserve color depth with the desire for lively brilliance, a superior approach to shallow or generic cuts that sometimes make large stones appear washed out or too dark. The excellent polish further distinguishes this piece, as superior finishing supports both light performance and the perceived value when set in fine jewelry.

The Natural Sapphire Company is committed to presenting gemstones that offer real differentiation in the market, and this 5.63 carat oval blue sapphire is a clear representation of that commitment. For customers comparing options, this stone competes strongly against both smaller, treated stones and larger stones with compromised clarity or poor cutting. The combination of substantial weight, vivid natural color, eye clean clarity, no enhancement, and a precise mixed brilliant cut results in a sapphire that is equally suited to high end engagement rings, bespoke statement pieces, and collectors seeking a piece that will age well and retain desirability. Practical considerations favor this gem as well, the 12.31 by 9.37 millimeter spread is ideal for classic solitaire and halo settings, offering a balanced profile that flatters the finger without overwhelming the wearer. For those who prioritize provenance and assurance, the C.Dunaigre certification that accompanies this stone provides independent verification of the attributes that drive its premium. Choosing this sapphire through The Natural Sapphire Company means selecting a gem that stands above routine market options, both for the immediate visual impact of its generous weight and for the enduring value that comes from natural, unenhanced quality.