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3.56 Ct. Black Star Sapphire from Thailand

This loose stone ships by May 29

 
Item ID: S40516
Free shipping
$285
Quality, Value & Heart
100% Natural Sapphires
Free Shipping - Worldwide
14 Day No Hassle Return Policy
Supports Local Charities
Product Details
Item ID:
S40516
Dimensions (MM):
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Length: 9.59
Width: 7.6
Height: 3.98
Weight:
3.56 Ct.
Color:
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Black
Color intensity:
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Intense
Clarity:
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Very 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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Thailand
Per carat price:
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$80
Star appearance:
2-4 Ray, Strong Star Appearance
Product description

There are few gems that carry the quiet power of history with such elegant simplicity as the star sapphire. For centuries these stones have been treasured by cultures from Southeast Asia to the Mediterranean, admired not only for their color but for the celestial star that seems to move beneath the surface. This particular piece is a refined example of that enduring tradition, a translucent 3.56 carat oval shape black star sapphire that feels like a talisman from another era. Its cabochon cut allows the asterism to perform with clarity, and its intense color gives the stone a presence that reads as both ancient and utterly modern. When set into a ring, the gem will sit with the calm authority of something that has weathered time and will be looked to as a symbol of protection, devotion, and lasting fidelity.

The gemological specifics of this star sapphire speak to its quality in measured terms and in qualities that go beyond mere numbers. It measures 9.59 x 7.60 x 3.98 mm, a pleasing oval proportion that offers a generous surface area for the six rayed star to materialize when light is directed across its dome. The clarity is graded very slightly included as evaluated at eye level, which in a star sapphire often contributes to the intensity of the phenomenon rather than detracting from the stone. Its translucent body transmits the necessary light to reveal the moving star, while its intense color intensity frames the asterism in striking contrast. The polish on the cabochon is excellent, creating a smooth reflective surface that allows the white star to glide with a soft, hypnotic motion. Importantly for collectors and for those seeking an engagement gem that stands for authenticity, this star sapphire has undergone no enhancement, and it hails from Thailand, a region with a long history of producing fine, characterful stones.

For someone considering an engagement ring, this black star sapphire presents an alternative to conventional choices, combining rarity with a narrative that can be passed through generations. An engagement gem of this nature speaks of a partnership that values depth and substance, a union that honors history as much as it celebrates the future. The visual drama of the moving star creates a daily moment of wonder for the wearer, a private and public reminder of the vow being made. In practical terms the stone is ideally suited to a protective bezel or a low profile setting that shields the cabochon while allowing the star to be seen from multiple angles. A yellow gold mount will bring warmth and antique character, white gold or platinum will accentuate the stones silvery star, and a custom vintage inspired design can amplify the sense of lineage and legacy. Setting this gem as the center of an engagement ring transforms the piece into an heirloom, something that tells a story, not only of a proposal, but of the values that the couple holds dear.

At The Natural Sapphire Company we understand the significance of choosing a gem that will be worn every day and cherished for a lifetime, and we stand behind the provenance and quality of this black star sapphire from Thailand. The combination of its 3.56 carat weight, its 9.59 x 7.60 x 3.98 mm oval dimensions, its cabochon cut, its very slightly included clarity at eye level, its intense color intensity, its excellent polish, and the fact that it has received no enhancement, makes this a rare and honest offering. We recommend routine gentle care, keeping the gem away from harsh chemicals, and having it inspected periodically to ensure the setting remains secure, as a cabochon benefits from protection but shows its best face through regular wear. For those who prize a ring that embodies heritage, mystery, and enduring beauty, this star sapphire is an invitation to choose differently, to celebrate commitment with a piece that feels timeless and personal. If you would like guidance on ideal settings, bespoke design options, or the story behind Thai sapphires, our team is ready to assist.

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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