- Stone18
- Reports3
-oval-blue-sapphire-3.4300-cts-s45290-1.jpg?d=200x200&v=20260722063736)
-oval-blue-sapphire-3.4300-cts-s45290-1.jpg?d=200x200&v=20260722063736)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-1.jpg?d=200x200&v=20260810020745)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-2.jpg?d=200x200&v=20260810020745)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-3.jpg?d=200x200&v=20260810020745)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-4.jpg?d=200x200&v=20260810020746)












3.43 Ct. Blue Star Sapphire from Ceylon (Sri Lanka)
Item ID: | S45290 |
|---|---|
Dimensions (MM): help | Length: 9.48 Width: 7.91 Height: 4.59 |
Weight: | 3.43 Ct. |
Color: help | Blue |
Color intensity: help | Dark |
Clarity: help | Slightly Included |
Shape: help | Oval |
Cut: | Cabochon |
Cutting style: | Cabochon |
Enhancements: help | No Enhancement |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $408 |
Star appearance: | 2-4 Ray, Strong Star Appearance |
One beautiful translucent three point four three carat oval blue star sapphire, with dimensions of nine point four eight by seven point nine one by four point five nine millimeters, cabochon cut, clarity grade slightly included at eye level, dark color intensity, excellent polish, no enhancement, and origin Ceylon Sri Lanka. This description places the gem among a very small group of naturally occurring star sapphires that combine size and color depth in a single, untreated stone. In the market many star sapphires are either small or pale, or they have undergone heat or surface treatments to improve color and clarity, but this gem arrives to collectors and designers exactly as nature formed it. The oval cabochon shape has been cut to optimize the asterism while preserving weight and depth, and the translucent body allows the star to glide across the surface with movement and light. Compared to typical commercial star sapphires at one carat or below, or to stones with weak or diffuse stars, this sapphire offers immediate visual presence and a density of color that reads as both classic and rare.
When you compare this Ceylon blue star sapphire to other options on the market the advantages are clear, quality, value, and rarity. Quality begins with the origin, Ceylon, which has produced some of the most celebrated star sapphires for centuries, and continues with the gem being unenhanced, making it more desirable to connoisseurs who prioritize natural state. Value is driven by the combination of carat weight and dark color intensity, because larger star sapphires with strong, centered asterism and deep blue fields are much less common than their lighter or treated counterparts. Unseen by photographs alone is the excellent polish that gives the cabochon a smooth surface, allowing the star to present with crispness and symmetry, a trait that many mass market stones lack. Uniquely this sapphire sits in a niche between wearable jewelry and collector grade specimen, making it an attractive purchase for someone who wants a memorable ring or pendant that will also hold value. In contrast many market pieces that are abundant and inexpensive come from stones that have been heated, dyed, or otherwise altered to simulate depth of color and clarity, whereas this gem shows the true character of Sri Lankan material.
The Natural Sapphire Company presents this stone with confidence because of our strict sourcing standards and our deep experience in evaluating star phenomenon in sapphires. Collectors who compare offered gems will notice that this sapphire is rare in both size and color, because sapphires over three carats that retain a strong star and a dark, even color field are encountered far less often than the smaller and lighter stones commonly available. Where other sellers may emphasize post treatment improvements, this sapphire stands out for being natural and untreated, a factor that enhances both its desirability and its long term appeal. For jewelry designers the deep blue and sharp asterism translate into a focused design element that will remain pronounced under normal wear, especially in settings that protect the cabochon face while allowing light to strike it from multiple angles. For investors and collectors the combination of natural origin, dark color intensity, excellent polish, and a weight of three point four three carats creates a gem that is not only attractive now, but also positioned to be more scarce over time as untreated, well formed star sapphires of this size and color are removed from the market and set into enduring pieces. If you are comparing alternatives, consider that many lower priced options sacrifice natural origin, size, or star quality, whereas this stone preserves all three, and The Natural Sapphire Company stands behind that assessment.





-oval-blue-sapphire-3.4300-cts-s45290-1.jpg?d=750x750&s=nsc&v=20260722063736)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-1.jpg?d=750x750&s=nsc&v=20260810020745)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-2.jpg?d=750x750&s=nsc&v=20260810020745)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-3.jpg?d=750x750&s=nsc&v=20260810020745)
-oval-blue-sapphire-3.4300-cts-s45290-lifestyleimage-4.jpg?d=750x750&s=nsc&v=20260810020746)






















