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20.43 Ct. Blue Star Sapphire from Ceylon (Sri Lanka)

This loose stone is available to ship now

 
Item ID: S14561
Free shipping
$99,596
Quality, Value & Heart
100% Natural Sapphires
Free Shipping - Worldwide
14 Day No Hassle Return Policy
Supports Local Charities
Product Details
Item ID:
S14561
Dimensions (MM):
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Length: 15.02
Width: 11.97
Height: 10.7
Weight:
20.43 Ct.
Color:
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Blue
Color intensity:
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Medium
Clarity:
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Very Slightly Included
Shape:
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Oval
Cut:
Double Cabochon
Cutting style:
Cabochon
Enhancements:
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No Enhancement
Origin:
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Ceylon (Sri Lanka)
Per carat price:
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$4,875
Star appearance:
Strong2Ray
Product description

When you are searching for a truly remarkable gemstone that will bring your jewelry vision to life, this 20.43 carat oval blue star sapphire answers that need with confidence. Many clients come to The Natural Sapphire Company looking for a stone that balances presence and personality, a gem that makes a statement without overwhelming the wearer, and this sapphire does exactly that. Its translucent body allows light to travel through the stone and reveal the living, shifting character of the color, while the double cabochon cut enhances the star effect so that asterism moves gracefully across the surface as the stone is viewed from different angles. For anyone considering an engagement ring that must be unique, or a collector seeking a rare and natural specimen, this sapphire provides assurance that your search can end here, because it combines exceptional physical dimensions with superb natural features that modern enhancement cannot replicate.

In practical terms this oval sapphire measures 15.02 x 11.97 x 10.70 mm, a size that reads as bold on a ring or pendant, yet versatile enough to sit beautifully in a variety of settings. The 20.43 carat weight translates into a substantial visual impact that will command attention whether set alone in a classic solitaire mode, framed by delicate diamonds for contrast, or mounted into a more adventurous custom design. The medium color intensity is one of the most desirable attributes for blue star sapphires, it provides a vibrant, saturated blue that remains lively under different lighting conditions without becoming too dark or too pale. Because this gem has no enhancement, its color and star are fully natural, offering a transparency of origin and quality that discerning buyers value highly.

Clarity and finish matter deeply when you want a gemstone to perform. This sapphire is graded as very slightly included, evaluated at eye level, which means that under normal viewing conditions the stone presents a clean and luminous surface. The excellent polish of the double cabochon finish allows the star to glide across the dome with clarity and strength, creating a focal point that is both mesmerizing and elegant. Translucency adds depth, so the star appears to float within the gem rather than merely sitting on the surface, and the symmetry of the oval shape harmonizes with the star to produce a balanced and refined look. For engagement rings this combination delivers both romance and reliability, the kind of gemstone that tells a story every time it catches the light, and for collectors it represents a specimen with integrity and aesthetic power.

Origin can be as meaningful as appearance, and this exceptional star sapphire comes from Ceylon Sri Lanka, a source long celebrated for producing some of the worlds most sought after blue sapphires. When you choose this piece from The Natural Sapphire Company you not only receive a remarkable natural gem, you also gain the confidence of working with a company that understands gemstones at the molecular and market level, and that stands behind each stone with knowledge and transparency. Imagine the sapphire set in an heirloom design that will be passed through generations, or mounted in a modern engagement ring that reframes expectation, the vivid blue and the moving star will stand out in any setting, complementing precious metals and accents while remaining the undeniable center of attention. If your goal is to find a single item that fulfills aesthetic demands, technical standards, and provenance expectations, this 20.43 carat Ceylon blue star sapphire meets that brief and more, bringing your search to a satisfying and beautiful close.

Watch our process
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Our Process video
Our Packaging
Beauty is in the details
Our packaging, reports, and documentation are crafted to be refined, concise, and trustworthy. With our reputation as our greatest asset, we never cut corners. Explore our detailed reports and premium packaging for every sapphire.

Our custom zinc alloy ring boxes are designed to impress as much as our sapphire rings and jewelry. Each box weighs nearly a pound, adding a touch of luxury to your experience.
Zinc-alloy ring box - opened
Our customers often comment about our stunning, hand made, presentation boxes and reporting documents. Large zinc-alloy boxes are included at no extra cost for jewelry items over $5000.
Zinc-alloy ring box - closed
Presentation matters. We take extra special care to present our items professionally. Our custom hand-made zinc-alloy ring boxes are heavy weight. At almost 1 pound each they are extremely impressive and unique.
Smaller Zinc-allow ring box
For Jewelry Purchases from $500-$5000 in value we include our petit zinc alloy box.
Long, dark brown hinged jewelry box showcasing a line bracelet gently secured and beautifully displayed
For line bracelets over $500, we include a high quality, hinged jewelry box. Pictured is one of the beautiful styles that we may use.
Dark brown jewelry box showcasing two hanging earings upon opening
For hanging earrings over $500, we include a high quality, hinged jewelry box. Pictured is one of the beautiful styles that we may use.
Petit box w/ luxurious white pouch showcasing a piece of jewelry
Jewelry items under $500 will ship in a signature pouch and box.
Zinc-alloy sapphire box - closed with view of stone through window
Our hand-made zinc sapphire boxes are the finest in the industry and are included for all sapphires over $2000.
Zinc-alloy sapphire box - open
A well presented sapphire makes a difference.
Wooden display box
For sapphire purchases between $500 and $2000 we ship a high quality black display box which shows the sapphire professionally. Stones under $500 will ship in a secure plastic pouch.
Document folder nicely wrapped
Each document folder is individually gift wrapped.
Assortment of reports and certification documents on table
Our extensive gemological reports cover every possible detail of your item. Professionally made with care to explain what gemological terms mean, our reports offer an education in fine sapphires and jewelry reporting.
Open folder displaying documents
Inside you will find well organized reporting to include appraisal, identification and gem faceting grade reports. Special care literature on how to clean your sapphire or jewelry is included as well.
Jewelry cleaning solution enlarged
Jewelry cleaner included with items over $2,000. * Unfortunately for international shipments we can not include liquids.
Sample identification report dust cover
Sample identification report dust cover [front].
Sample identification report
Sample identification report
Sample identification report reference page
Sample identification report dust cover [inside back].
Sample 3d scan report dust cover
Sample 3D scan report dust cover [front].
Sample 3D scan report.
Sample 3D scan report.
Sample 3D scan report reference page
Sample 3D scan report dust cover [inside back].
Zinc-alloy ring box - opened
Zinc-alloy ring box - closed
Smaller Zinc-allow ring box
Long, dark brown hinged jewelry box showcasing a line bracelet gently secured and beautifully displayed
Dark brown jewelry box showcasing two hanging earings upon opening
Petit box w/ luxurious white pouch showcasing a piece of jewelry
Zinc-alloy sapphire box - closed with view of stone through window
Zinc-alloy sapphire box - open
Wooden display box
Document folder nicely wrapped
Assortment of reports and certification documents on table
Open folder displaying documents
Jewelry cleaning solution enlarged
Sample identification report dust cover
Sample identification report
Sample identification report reference page
Sample 3d scan report dust cover
Sample 3D scan report.
Sample 3D scan report reference page
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education
Learn About Star Sapphires
Star sapphires captivate with their rare optical phenomenon known as asterism, where a luminous star-shaped pattern appears on the stone’s surface. This celestial effect adds a magical quality to the gem, making it a truly mesmerizing choice for collectors and jewelry enthusiasts.
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