2.31 Ct. White Opal from Ceylon (Sri Lanka)

This 2.31 carat Swiss blue topaz, presented by The Natural Gemstone Company, is a fine example of natural color and optical precision, round in shape with dimensions of 7.85 x 7.93 x 5.26 mm, cut in a mixed brilliant style and finished with an excellent polish. The stone exhibits a medium intense blue that aligns closely with classic Swiss blue tones, offering a clear, vivid hue without overstating saturation. Clarity has been evaluated as very very slightly included at eye level, which in practical terms renders the gem eye clean and visually flawless in everyday wear. There has been no enhancement applied to this topaz, so the color and clarity are natural, and the documented origin, Ceylon Sri Lanka, places this gem within a respected provenance known for producing high quality gemstones.

For the educated buyer, the clarity grade and the method of evaluation are important details that speak directly to the stone value. The phrase very very slightly included evaluated at eye level indicates that any inclusions are minute, and they do not affect visual performance under normal viewing conditions. The mixed brilliant cut combines step and brilliant facet arrangements to maximize both depth and scintillation, producing a lively return of light from table and pavilion facets alike. An excellent polish ensures facet junctions are crisp and mirror like, which minimizes light leakage and sharpens contrast between bright and dark areas, enhancing perceived color saturation and sparkle. Because no heat or irradiation treatments were used, the medium intense blue you see is the topaz natural color, which is desirable for collectors who prioritize untreated gemstones.

The proportions of this round topaz, including the near uniform girdle dimensions and a pavilion depth of 5.26 mm, contribute to balanced light performance, giving the stone uniform brilliance from multiple viewing angles. The mixed brilliant cut is particularly effective in this size range, distributing dispersion and scintillation to create a radiant appearance even under diffuse lighting. When mounted, the optical symmetry will allow the gem to appear lively on the finger, as shown in our reference images, where the stone sits with pleasing presence and even color distribution across the table. Its transparency combined with very very slightly included clarity means the topaz reads as flawless to the eye, and that perceived perfection increases the gem impact when rotated or tilted, because there are no visible interruptions to the light path that would dull reflections or create dead areas. For designers and buyers seeking complementary pairings, a White Opal companion stone offers soft, opalescent contrast, the milky play of opal setting off the crisp Swiss blue, and creating a refined palette for bespoke jewelry.

From an investment and wearability perspective, this Swiss blue topaz offers a compelling balance of aesthetic appeal and practical attributes. Topaz rates eight on the Mohs hardness scale, which means it is durable enough for daily wear with reasonable care, while remaining easier to set and polish than harder species. For an educated buyer, provenance from Ceylon Sri Lanka, untreated status, excellent polish, and an eye clean appearance are tangible markers of quality that support long term desirability. The Natural Gemstone Company stands behind the details we provide, and we can offer additional documentation on request to support provenance and grading observations. If you are considering this gem for a solitaire ring, a halo setting that includes a White Opal accent, or a bespoke design that highlights the mixed brilliant cut, our team can advise on mounting options that preserve the stone optics and protect the girdle. Care recommendations are straightforward, clean with mild soap and a soft brush, avoid prolonged exposure to extreme heat and strong acids, and remove jewelry during heavy physical activity to maintain facet integrity and polish.