4.23 Ct.Tw.Total Carat Weight Yellow Sapphire Pair from Ceylon (Sri Lanka)

This matched pair from The Natural Sapphire Company consists of two transparent yellow sapphires weighing 2.10 carats and 2.13 carats respectively, each cut to an elegant oval outline. The dimensions are 8.93 x 6.77 x 4.05 millimeters for the 2.10 carat stone, and 8.86 x 6.90 x 4.08 millimeters for the 2.13 carat stone, yielding length to width ratios of approximately 1.32 and 1.28. Both stones display intense color intensity in a pure yellow hue, and are evaluated as very very slightly included at the eye level. These sapphires originate from Ceylon, Sri Lanka, a classic source for warm yellow sapphires, and have undergone beryllium diffusion enhancement to develop and stabilize the vivid yellow saturation. The treatment is disclosed and long lasting under normal wear and cleaning conditions. The cut is described as mixed brilliant, and the stones present an excellent polish that manifests in crisp facet junctions and lively surface reflection.

From a faceting and optical perspective these ovals are executed to promote strong light return and controlled scintillation. The mixed brilliant style employed typically uses a brilliant facet arrangement on the crown combined with pavilion facets that emphasize contrast and depth. The measured depths of 4.05 millimeters and 4.08 millimeters produce depth percentages near 52 percent when calculated against the average diameter, a proportion that favors brightness and balanced contrast without sacrificing spread. The near matched proportions, with length differences of 0.07 millimeters, width differences of 0.13 millimeters, and depth differences of 0.03 millimeters, reflect a deliberate pairing strategy. These tolerances ensure consistent table presentation and matched optical performance when set side by side. The clarity grade of very very slightly included indicates that inclusions are minute and typically internal feather or crystal types that do not materially interrupt the passage of light through the brilliant crown. The excellent polish further refines the light performance, allowing the mixed brilliant geometry to break light into vivid play and controlled flashes rather than a washed glare.

The craftsmanship behind matching this pair is rooted in comparative selection and final re faceting to achieve optical harmony. At The Natural Sapphire Company the process begins with sourcing material that displays similar rough color and internal character, then advances through synchronized cutting decisions that align length to width ratios, depth profiles, and pavilion angles. By controlling these variables the cutters ensure that hue, saturation, and brightness read consistently between stones, an essential requirement for a successful pair, particularly for earrings or a matched three stone piece. The beryllium diffusion was applied prior to final cutting and polishing in order to stabilize the color through the entire cutting process, a practice that yields uniform saturation at and below the surface. The result is a pair that presents the same visual weight, the same lively mixed facet pattern, and the same table brightness when compared under standard daylight and controlled lighting. For mounting we recommend settings that expose the pavilion to maximize light entry and that use a secure bezel or prong structure that respects the oval proportions, with metal selections that complement warm yellow tones. Detailed documentation regarding origin, treatment, and measured dimensions accompanies each purchase, and our specialists can advise on optimal mounting and care to preserve the visual harmony and longevity of these fine Ceylon yellow sapphires.