9.02 Ct. Blue Sapphire from Ceylon (Sri Lanka)

A sapphire such as this speaks to a lineage of rarity and refinement, and its weight in carats is the very first statement it makes. At 9.02 carats this asscher octagon shaped blue sapphire asserts premium quality from the moment it is seen, the mass and presence that only a truly substantial gem can provide. A stone of this size is a celebration of geological patience, a crystal formed over millions of years and now presented with a scale and balance that collectors and connoisseurs immediately recognise. The dimensions of 10.56 x 10.55 x 8.41 mm give this gem a commanding table and depth, proportions that allow the medium intense blue color to breathe and shift as light travels through its finely polished facets. The Natural Sapphire Company is proud to offer such a magnificent example, a transparent sapphire that brings together weight, clarity and cut in a combination that few stones can achieve at this carat weight.

The choice of an asscher cut in an octagon silhouette ties this sapphire to a long and storied tradition of gem cutting that values symmetry, step facets, and a hall of mirrors brilliance that reveals the stone in layered planes. The asscher form traces its fame to early twentieth century design, but its appeal is timeless, especially in a gemstone born from the celebrated mines of Ceylon Sri Lanka. The geometry of the asscher octagon emphasizes internal clarity and color zoning in a refined and architectural way, creating flashes of light that travel across the pavilion and crown. For a large gem, this cut is especially elegant, because it organises the light within the stone so that the medium intense blue reads consistently across the table, delivering a depth of tone without overpowering saturation. In settings that honour tradition, this cut looks at home in classic four claw mounts, in elegant bezels that frame the shape, or in heirloom pieces designed to be passed down, its octagon outline echoing motifs that have been treasured for generations.

Clarity and finish are crucial when evaluating a sapphire at this scale, and this stone delivers on both counts. The clarity grade described as very very slightly included evaluated at eye level attests to a gem that is essentially eye clean, with only the most minute inclusions that do not detract from visual beauty and that in many ways confirm natural origin. The excellent polish enhances every facet edge, allowing the step cut planes to act as mirrors that reflect and refract light with precision. Heat treatment is noted as the enhancement, a time honoured and stable practice used by gemmologists and lapidaries to bring out the best possible color and clarity in natural sapphires. In the world of premium gemstones this treatment is widely accepted, and when combined with the natural provenance of Ceylon, it results in a stone whose medium intense blue carries the classic luminosity and sea born depth that collectors associate with Sri Lankan sapphires. The transparency of this gem means that the light journeys freely through its body, revealing a living blue that breathes with the environment and the person who wears it.

Owning a sapphire of 9.02 carats is more than an acquisition it is an inheritance of story and craft, and at The Natural Sapphire Company we understand how to honour that legacy. From the moment such a gem leaves the mine in Ceylon Sri Lanka to the final polishing and certification, each stage is handled with an eye toward ethical sourcing and expert workmanship, ensuring that the weight and quality you see are matched by documentation and care. For design specialists and private clients this sapphire offers countless possibilities, from a solitary centerpiece in a noble ring to a focal stone in bespoke jewellery that references classical proportions and historical silhouettes. Its substantial carat weight makes it a natural candidate for a commission meant to mark a milestone or to create a family treasure, and its timeless asscher octagon profile ensures that it will never feel dated. If you seek a sapphire that combines geological history, artisanal excellence and the undeniable presence that only a nine carat plus stone can command, this Ceylon asscher octagon sapphire is a rare and worthy choice, and The Natural Sapphire Company stands ready to assist with further details, provenance documentation and bespoke design consultations.