3.05 Ct. Blue Sapphire from Thailand

This available gemstone is a transparent blue sapphire weighing 3.05 carats, presented in a classic oval shape, with exact dimensions of 10.14 by 7.88 by 4.70 millimeters. The pavilion and crown have been fashioned with a mixed brilliant cut that balances facet complexity and light performance. Clarity has been assessed as very slightly included when viewed at eye level, indicating that any internal characteristics are minor and do not detract from the stone at typical viewing distances. Color intensity is described as dark, producing a deep, saturated blue that reads consistently across the table and crown. The surface condition is excellent, with an expert polish that enhances light return and overall luster. This sapphire originates from Thailand and has been heat treated, a common and stable enhancement applied to improve tone and saturation.

The mixed brilliant cut used for this piece combines a faceting approach that promotes scintillation across the crown with broader reflective planes in the pavilion to maintain body color. This combination is particularly effective with darker sapphires, because it allows the stone to display depth and vitality without overly concealing internal features. The very slightly included clarity grade means that at typical viewing distances, the sapphire reads clean, and the inclusions do not interfere with its optical performance. The excellent polish contributes to crisp facet junctions and strong light return, supporting contrast between flashes and larger color windows. The dark color intensity lends the gem a formal and enduring presence, while the heat treatment applied at origin is recognized in the trade as a stable and permanent enhancement when performed under controlled conditions.

From a custom jewelry perspective, the proportions and weight of this sapphire make it highly versatile. Measuring 10.14 by 7.88 millimeters and weighing 3.05 carats, the oval outline offers an elegant scale suitable for a central ring stone in sizes ranging from classic solitaires to more elaborate halo and three stone designs. The elongated silhouette of an oval shape is particularly effective at creating a lengthening visual effect on the finger, and the 4.70 millimeter depth provides sufficient pavilion to seat the gem securely in a variety of setting types, while still allowing close contact with accent stones if a halo is desired. The mixed brilliant faceting pattern works well with both open prong settings that maximize light entry and with bezel styles that emphasize color and protect the girdle. Practical choices for custom pieces include a four or six prong crown to balance security and visibility, a low profile mounting for everyday wear, or a slightly elevated head to emphasize presence in a statement pendant.

For clients seeking a reliable supply for design work, The Natural Sapphire Company can provide further guidance on setting specifications and mounting tolerances for this specific stone. Because the sapphire is heat treated and originates from Thailand, standard care practices apply, including gentle cleaning with warm soapy water and a soft brush, routine inspection of the mounting to ensure secure prongs or bezel, and avoidance of harsh chemicals or extreme thermal shock. The stone is well suited to fine jewelry interpretations that pair the deep blue with white diamonds for contrast, with warm yellow metals to enhance saturation, or with platinum and white gold for an understated, contemporary appearance. If desired, The Natural Sapphire Company can assist with custom design consultation, precise setting recommendations to accommodate the 10.14 by 7.88 by 4.70 millimeter dimensions, and documentation regarding the gem origin and enhancement history.