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0.31 Ct. Bluish Green Sapphire from Montana

This loose stone is available to ship now

 
Item ID: S40031
Free shipping
$248
Quality, Value & Heart
100% Natural Sapphires
Free Shipping - Worldwide
14 Day No Hassle Return Policy
Supports Local Charities
Product Details
Item ID:
S40031
Dimensions (MM):
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Length: 3.95
Width: 3.93
Height: 2.73
Weight:
0.31 Ct.
Color:
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Bluish Green
Color intensity:
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Medium
Clarity:
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Slightly Included
Shape:
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Round
Cut:
Mixed Brilliant Cut
Cutting style:
Faceted
Enhancements:
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Heat Treated
Origin:
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Montana
Per carat price:
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$800
Product description

A luminous testament to refined taste, this exquisite 0.31 carat round bluish green sapphire is a jewel that confers distinction with every glance, a concise yet resolute statement of elegance and discernment. At 0.31 carat the gem occupies a coveted space between subtlety and presence, a size chosen by connoisseurs who understand that true luxury need not shout to be noticed, it commands attention with quiet certainty. The proportions of this round stone, measured at 3.95 x 3.93 x 2.73 mm, are a study in harmony, yielding a profile that sits gracefully in a variety of settings, from a refined solitaire pendant to an intricate halo ring that frames its color and fire. Presented by The Natural Sapphire Company, this sapphire is not merely a gem, it is an emblem of achievement, a tangible reflection of impeccable standards, and a rare opportunity to own a natural treasure whose carat weight combined with superior craftsmanship makes it an instant heirloom.

The optical virtues of this sapphire are revealed in its mixed brilliant cut, a cutting style that marries scintillation with depth, coaxing lively flashes from within while preserving the stone with a balanced table and crown. The medium color intensity creates a serene bluish green hue that changes subtly with light and angle, a sophisticated color that reads as both modern and timeless. Clarity is graded slightly included as evaluated at eye level, a characteristic that speaks to the stone authenticity and organic origin, while excellent polish ensures the facets catch and return light with crisp, luminous clarity. This sapphire has been heat treated, a widely accepted enhancement that deepens and stabilizes color while preserving the integrity of the natural crystal, ensuring long lasting beauty with responsible enhancement. Originating from Montana, this gem carries the evocative provenance of American sapphire country, a source known for producing transparent, characterful stones that are prized by collectors and designers alike, and The Natural Sapphire Company takes pride in certifying and curating such singular examples.

Owning a 0.31 carat sapphire of this caliber is an investment in both aesthetic pleasure and enduring prestige, it is a piece that complements a life of refinement and becomes more meaningful with each occasion it adorns. The compact carat weight permits versatile design possibilities, allowing goldsmiths and designers to center it in a delicate ring, nest it within a bespoke pendant, or combine it with accent diamonds to enhance its bluish green whisper without overwhelming its natural charm. The dimensions 3.95 x 3.93 x 2.73 mm translate into balanced visual presence on the finger or neckline, offering a refined silhouette that reads as sophisticated and intentional. For those who seek distinction without ostentation, a 0.31 carat sapphire is a deliberate choice, it celebrates connoisseurship and nuance, and it becomes a private signal of cultivated taste.

Entrust your selection to The Natural Sapphire Company, whose expertise in sourcing, grading, and presenting exceptional sapphires ensures that each gemstone is accompanied by provenance and thoughtful guidance. This 0.31 carat round bluish green sapphire, with its mixed brilliant cut, medium color intensity, slight inclusions at eye level, excellent polish, heat treated enhancement, and Montana origin, is offered to those who appreciate the marriage of natural wonder and refined craftsmanship. Envision this stone at the heart of a bespoke creation, a cherished symbol that marks milestones and elevates everyday moments, it is more than a gem, it is a personal signature of luxury and discernment.

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 Unique Colored Sapphires
From pastel blues to vivid oranges, unique-colored sapphires offer a dazzling array of shades that stand out from the traditional. These vibrant gems allow you to express your personality with a one-of-a-kind jewel, perfect for creating custom, colorful jewelry pieces.
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