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6.11 Ct. Black Star Sapphire from Ceylon (Sri Lanka)

This loose stone ships by Jul 9

 
Item ID: S41274
Free shipping
$1,180
Quality, Value & Heart
100% Natural Sapphires
Free Shipping - Worldwide
14 Day No Hassle Return Policy
Supports Local Charities
Product Details
Item ID:
S41274
Dimensions (MM):
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Length: 11
Width: 9.45
Height: 5.1
Weight:
6.11 Ct.
Color:
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Black
Color intensity:
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Intense
Clarity:
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Slightly Included
Shape:
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Oval
Cut:
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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$193
Star appearance:
2-4 Ray, Strong Star Appearance
Product description

When a customer seeks a gem that brings mystery, presence, and unmistakable character to a ring or a collection, this 6.11 carat oval black star sapphire from Ceylon Sri Lanka answers that need with quiet confidence, and The Natural Sapphire Company is proud to present it as a rare find that resolves both aesthetic and practical desires. The gem measures 11.00 by 9.45 by 5.10 mm, and its cabochon cut is crafted specifically to reveal and maximize the star effect that defines its appeal. With a clarity grade of slightly included as evaluated at eye level, the stone retains a translucent depth that allows light to enter and interact with internal structures, producing the distinct moving star that enchants onlookers. Its intense color intensity anchors the dramatic contrast between the darker bodytone and the pale, luminous star, and the excellent polish ensures that the surface reads clean and refined in every setting. Importantly for collectors and those who want their purchase to be as natural as possible, this sapphire has no enhancement, which means the beauty you see comes from the gem itself rather than from treatment. If you are searching for a centerpiece that commands conversation, holds symbolic weight, and requires no faith in artificial enhancements to impress, this star sapphire is tailored to that brief.

Compared to more common gemstones this black star sapphire offers a completely different conversation with light, and that is what makes it stand out in any jewelry case. A traditional faceted diamond draws the eye with scintillation and fire, breaking white light into flashes of color through many facets. A blue sapphire or ruby usually delights with saturated bodycolor and strong light return from a faceted surface. In contrast this star sapphire communicates through asterism, a celestial cross of light produced by fine needle like inclusions aligned within the corundum structure. Where a diamond or a faceted sapphire delights through sparkle, this stone delights through movement and mood, showing a crisp star that appears to glide across the dome as the gem or the wearer moves. Compared to black diamond and black spinel, which rely on dense, opaque blackness and metallic luster, the translucent nature of this star sapphire yields depth and a subtle sheen, inviting closer inspection. Compared to onyx, which offers a uniform, flat surface, the star sapphire is alive, offering optical drama that changes with viewing angle and lighting. The result is a piece that reads as both rare and personal, ideal for someone who does not simply want a pretty stone but wants an experience every time the gem catches the light.

For clients considering engagement pieces, bespoke rings, or museum quality additions to a cabinet, this star sapphire solves several common concerns at once, and The Natural Sapphire Company stands ready to help bring the piece from view to design. The generous 6.11 carat weight and the 11.00 by 9.45 by 5.10 mm oval shape are versatile for a wide range of settings, from a protective bezel that emphasizes the modern, architectural look to a classic open mount that allows light to interact with the cabochon from multiple angles. The cabochon cut and the excellent polish mean that the star will be presented with maximum clarity and intensity, and the slightly included clarity grade is in fact part of what produces the strong asterism, so inclusions are not a flaw here but the very source of the stone signature. Because the gem is natural and untreated, provenance from Ceylon Sri Lanka adds historical and market value, and for clients who value traceable, honest sourcing this is a reassuring detail. For day to day care, a simple warm soap and water clean and avoidance of harsh abrasives will preserve polish and star, and a setting that protects the girdle and dome will keep the stone safe for years of wear. If you are ready to move forward or if you would like suggestions for a custom mounting that best showcases the star for an engagement, a cocktail ring, or a collector display, our specialists at The Natural Sapphire Company are available to guide you through style choices and technical considerations, ensuring that this luminous black star sapphire becomes the perfect solution to the desire for something exceptional and enduring.

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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