3.50 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 3.50 carat transparent oval blue sapphire presents a balanced combination of size, proportion, and clarity that makes it exceptionally well suited for custom jewelry. The gemstone measures 9.99 x 7.99 x 5.26 mm, a dimension range that reads as a classic oval, offering an elegant face up presence without excessive depth. The cut is a mixed brilliant, which optimizes light return through a combination of step and brilliant facets. Clarity is graded as very slightly included evaluated at eye level, and the stone exhibits medium color intensity with an even distribution of hue and tone. The polish has been evaluated as excellent, and the sapphire has been heat treated to enhance color and clarity. The origin is Ceylon, Sri Lanka, and The Natural Sapphire Company provides full disclosure of the gemological characteristics for precise design planning.

The oval outline and the near 10 by 8 mm proportions establish this sapphire as a versatile centre stone for a range of custom pieces. On the finger the oval shape elongates the hand while maintaining a substantial presence that is neither overpowering nor diminutive. These dimensions are ideal for solitaire rings where the stone can be set to maximize table exposure, and they are equally appropriate for halo settings that use a surrounding circle of diamonds to accentuate the sapphire mass. For pendants and bespoke drop designs the mixed brilliant cut ensures attractive scintillation when the piece is in motion, while the moderate depth supports secure bezel or prong mounting without creating an overly high profile. The stone size also lends itself to paired pieces, for example a matched sapphire pendant and ring set, where the consistent optical weight across designs is important.

The mixed brilliant cut and excellent polish contribute significantly to the gemological performance you can expect in a finished setting. The brilliant facets on the crown promote liveliness and dispersed sparkle across the table, while the step elements in the pavilion can reinforce color saturation and visual depth as light travels through the stone. With a medium color intensity the sapphire offers a balanced blue that is adaptable to a range of metal choices. In white metal settings the cooler undertones are emphasized, producing a crisp, contemporary look. In yellow metal the color reads warmer and more luminous, and in rose gold the stone displays a soft romantic contrast that can be desirable for vintage inspired commissions. Because the color is evenly distributed and the clarity is very slightly included at eye level, design decisions can focus on how the setting will showcase face up color and brilliance rather than compensating for large inclusions or uneven tone.

Practical considerations for custom fabrication are straightforward given the sapphire attributes. The 5.26 mm depth is suitable for conventional prong and claw settings while still allowing for secure cup construction in bezel or tension mounts. For rings intended for daily wear, a low profile prong setting or a partially bezelled design will reduce catch on clothing and protect the girdle, while preserving the oval silhouette. If a designer seeks to emphasize brilliance, a halo of small calibrated stones will increase apparent diameter and create a strong contrast with the sapphire face up color. For settings where light return is critical, an open back or a gallery with strategic openings will permit light to enter the pavilion, enhancing sparkle without compromising structure. Given the heat treated enhancement, routine care involves avoiding extreme temperature shock and abrasive cleaners, and the gem maintains the hardness and durability of corundum for everyday use with the expected precautions for fine jewelry.

The Natural Sapphire Company stands behind clear, factual representation of this gem for clients seeking a tailored design. The stone combines a desirable carat weight, classic oval proportions, a mixed brilliant facet arrangement, and a clarity grade that supports visible beauty while enabling a range of mounting options. For jewelers and clients planning a bespoke piece the sapphire provides a reliable foundation for technical planning including prong profiles, bezel wall thickness, and setting height, as well as aesthetic choices such as metal selection and complementary stones. Our team can provide detailed measurements, facet diagrams, and photographs under varied lighting to assist in visualizing the final piece. We invite inquiries for custom commissions, CAD renderings, and setting consultations, so that this Ceylon sapphire can be crafted into a finished work that reflects both the stone character and the design intent.