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0.30 Ct. Green Sapphire from Montana

This loose stone is available to ship now

 
Item ID: S36270
Free shipping
$180
Quality, Value & Heart
100% Natural Sapphires
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14 Day No Hassle Return Policy
Supports Local Charities
Product Details
Item ID:
S36270
Dimensions (MM):
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Length: 5.04
Width: 3.15
Height: 2.28
Weight:
0.30 Ct.
Color:
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Green
Color intensity:
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Medium
Clarity:
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Slightly Included
Shape:
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Oval
Cut:
Mixed Brilliant
Cutting style:
Faceted
Enhancements:
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Heat Treated
Origin:
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Montana
Per carat price:
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$600
Product description

This green sapphire began its slow, patient journey deep within Montana earth, where ancient rivers and glaciers once carved the landscape and left behind pockets of corundum in gravel beds and alluvial deposits. Miners with a long tradition of low impact, careful recovery worked by hand and by small scale sluicing, following stories passed down through generations of where the gemstone might reveal itself. In that quiet, rugged place, under wide skies, nature formed a gem that would one day be transformed, a gem that holds in its crystalline structure the geological memory of its birthplace. The Natural Sapphire Company works closely with miners who respect the land, and this 0.30 carat green sapphire carries with it the trace of that Montana landscape. Thinking of the stone this way helps you see it not as an isolated object, but as the last chapter of a long natural story, preserved and polished for someone to wear and to cherish.

At the heart of this story is the gem itself, a transparent 0.30 carat oval green sapphire, measuring 5.04 by 3.15 by 2.28 millimeters, cut in a mixed brilliant style and finished with an excellent polish. The color reads as medium intensity green, a subtle balance between fresh verdure and cool, silvery depth. Clarity is slightly included when assessed at eye level, which is a natural fingerprint from its formation, and the gem has been heat treated to gently enhance its tone and clarity while preserving its natural character. The weight of 0.30 carat is more than a number, it is a key to the gem s identity and value, because sapphire pricing and rarity change rapidly with weight brackets. In the world of fine sapphires, every tenth of a carat can mark a threshold where supply thins and demand rises, and a naturally derived Montana green sapphire at 0.30 carat occupies a sweet, rare zone where the gem remains wearable and affordable, yet undeniably special.

Understanding why the 0.30 carat weight matters requires a sense of proportion and light. At 5.04 by 3.15 by 2.28 millimeters this oval sapphire is compact but perfectly formed to capture and return light, the mixed brilliant cut combining the lively scintillation of brilliant facets on the crown with the depth and color concentration provided by step or mixed facets in the pavilion. The cut and the excellent polish work together to maximize the gem s apparent size, so from a distance the sapphire reads with confident presence. Because weight is conserved within the crystal, a well cut 0.30 carat stone that preserves depth and avoids thinness will display richer color and stronger brilliance than a poorly proportioned stone of the same weight. For collectors and designers this means that the 0.30 carat Montana green sapphire is especially valuable, it combines the compact, wearable dimensions that suit delicate engagement settings, stackable rings, and refined pendant designs, with a visual impact that belies its size.

The provenance of Montana sapphires adds another layer to the narrative, Montana being a region famed for producing sapphires with unique hues, including soft greens, serene blues, and rare teal tones, often associated with the wide open landscapes and clean mountain streams where they were found. Historically these sapphires were discovered by prospectors and hobby miners, and their story carries a heritage of adventure and careful stewardship. When you choose a sapphire from The Natural Sapphire Company you are choosing that story, and the ethical, traceable path that connects the rough stone to a studio cutter and then to a finished jewel. The 0.30 carat green sapphire is a reminder that rarity is not only about size, it is about occurrence in nature, the specific combination of trace elements that give the stone its medium green intensity, and the handful of stones that reach this specific weight and quality after cutting. For collectors who care about origin, the Montana label is meaningful, and for wearers who seek a quiet, dignified color this sapphire delivers something distinct from the more common tropical greens.

Finally, imagine the sapphire set in a piece designed to celebrate its modest weight and uncommon story, perhaps in a finely milgrained halo that amplifies its sparkle, or in a minimalist bezel that honors its origin and toughness. The 0.30 carat weight is ideal for bespoke commissions that balance everyday wearability with a jewel s emotional significance, a stone that is small enough for comfort and resilience, and large enough to be noticed and admired. At The Natural Sapphire Company we are happy to advise on settings and to provide full details about the stone s dimensions, cut, clarity grade, and the nature of the heat treatment, along with guidance on care to preserve its excellent polish and transparency. This Montana green sapphire is a compact, luminous token of place and time, a rare intersection of geological fortune and human craftsmanship, and for someone seeking a piece that is both intimate and meaningful it is a choice that gains value with personal attachment, provenance, and the enduring appeal of natural beauty.

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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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