Gem Type: Natural Sapphire Corundum

Collection: The Uncut Reserve

Colour: Green / Yellow-Green

Rough Weight: 39.59ct

Shape: Natural Rough

Treatment: Unheated

Origin: Australia

Measurements: 

Lab Certification: GIA after cutting

Potential Cutting Options: Round, Cushion, Emerald

Estimated Finished Weight: 12ct target (+/- 3ct)

Estimated Finished Clarity: Eye clean to slightly included, depending on final cutting direction

Estimated Finished Tone: Medium very slightly yellowish green

Expected Inclusions After Cut: Natural inclusions may remain visible under close inspection

This 39.59ct Australian sapphire rough was acquired from a major rough sapphire auction featuring more than one million carats of material.

Among the vast quantity of sapphire offered, this crystal was one of only two individual rough sapphires presented as a standalone lot. Rather than being grouped into a larger parcel, it was separated and offered on its own merit — recognised for its size, form, and cutting potential.

Selected by The Sapphire Merchant, this piece represents a rare opportunity to acquire an important Australian sapphire before cutting, and to take part in its transformation from natural crystal into a finished gemstone.

Offered as part of The Uncut Reserve, this sapphire invites the buyer into the process before its final identity has been revealed. Rather than simply purchasing a completed gem, the client is able to review the cutting possibilities, understand the trade-offs, and help guide the final direction of the stone.

In its natural rough form, this sapphire shows a green to yellow-green body colour, with golden-green depth and natural Australian character. Depending on orientation and cutting style, the finished stone may reveal a medium to medium-dark green tone. Potential cutting options may include an oval, cushion, shield, freeform, or custom design, although the final recommendation will be guided by the shape and internal structure of the rough.

As with all natural sapphire rough, the final result cannot be guaranteed before cutting. Finished weight, clarity, colour, and inclusion visibility will depend on how the stone responds during preforming and faceting. The Sapphire Merchant will guide the process with the aim of balancing beauty, weight retention, durability, and the strongest possible finished appearance.

This is more than a loose sapphire purchase. It is a private sapphire commission — beginning at the source, shaped through expert cutting, and documented as part of your stone’s story.

Reserve this Australian sapphire rough and begin the journey from rough to finished gem with The Sapphire Merchant.

Gem Type: Natural Sapphire Corundum

Collection: The Uncut Reserve

Colour: Green / Teal

Rough Weight: 12.34ct

Shape: Natural Rough

Treatment: Unheated

Origin: Australia

Measurements: 

Lab Certification: GIA after cutting

Potential Cutting Options: single Oval, Cushion, Emerald, Pear / Double round brilliants

Estimated Finished Weight: 4ct target (+1/-1ct) / Cut dependent

Estimated Finished Clarity: Eye clean to slightly included, depending on final cutting direction

Estimated Finished Tone: Medium dark

Expected Inclusions After Cut: Natural inclusions may remain visible under close inspection

This 12.34ct Australian sapphire rough was selected by The Sapphire Merchant from the lots we acquired at a major rough sapphire auction featuring more than one million carats of material.

At first glance, the stone carries the quiet, frosted surface of natural Australian sapphire rough. Under light, however, its character changes completely. A bright green to teal colour appears from within the crystal — a colour that feels almost locked inside the rough, waiting to be revealed through cutting.

This is why the stone was chosen for The Uncut Reserve.

Unlike a finished sapphire, this piece has not yet had its final identity decided. Its colour, shape, brilliance, and presence will be created through the cutting process. The rough shows areas of glowing green, yellow-green, and teal, with darker natural skin and internal features that will need to be carefully considered before cutting. The goal is to orient the stone in a way that captures the strongest colour while balancing beauty, clarity, weight retention, and durability.

Potential cutting options include a round, cushion, or emerald cut. A round may bring out the most brilliance and life, a cushion may preserve more weight while giving the stone a softer presence, while an emerald cut could create a more refined and architectural sapphire if the internal structure allows.

The finished sapphire is expected to sit in a medium to medium-dark green / teal range, with an estimated finished weight target around 6ct. The final result will depend on how the stone responds during preforming and faceting, and may vary depending on the chosen cutting direction.

Offered as part of The Uncut Reserve, this sapphire gives the buyer the opportunity to enter the process before the stone is cut. Rather than simply choosing a finished gem, the client is invited into the transformation — reviewing the cutting possibilities, understanding the trade-offs, and helping guide the final direction of the sapphire.

As with all natural sapphire rough, the final outcome cannot be guaranteed before cutting. Finished weight, clarity, tone, colour distribution, and inclusion visibility will depend on the internal structure of the crystal. The Sapphire Merchant will guide the process with the aim of revealing the best possible finished gem from the rough.

This is not simply a rough sapphire. It is a private sapphire commission — a natural Australian crystal with teal colour locked inside, selected for its potential, shaped through expert cutting, and documented from rough to finished gem.

Reserve Project 02 and begin the journey from rough to finished sapphire with The Sapphire Merchant.

Gem Type: Natural Sapphire Corundum

Collection: The Uncut Reserve

Colour: Green / Teal

Rough Weight: 37.73ct

Shape: Natural Rough

Treatment: Unheated

Origin: Australia

Measurements: 

Lab Certification: GIA after cutting

Potential Cutting Options: Oval, Cushion, Emerald Cut, or Pair of Rounds

Estimated Finished Weight: 10ct target (+3/-2) / Cut dependent

Estimated Finished Clarity: Eye clean to slightly included, depending on final cutting direction

Estimated Finished Tone: Medium dark

Expected Inclusions After Cut: Natural inclusions may remain visible under close inspection

This 37.73ct Australian sapphire rough was selected by The Sapphire Merchant from the lots we acquired at a major rough sapphire auction featuring more than one million carats of material.

At first glance, the stone carries the quiet, frosted surface of natural Australian sapphire rough. Under light, however, its character changes completely. A bright green to teal colour appears from within the crystal — a colour that feels almost locked inside the rough, waiting to be revealed through cutting.

This is why the stone was chosen for The Uncut Reserve.

Unlike a finished sapphire, this piece has not yet had its final identity decided. Its colour, shape, brilliance, and presence will be created through the cutting process. The rough shows areas of glowing green, yellow-green, and teal, with darker natural skin and internal features that will need to be carefully considered before cutting. The goal is to orient the stone in a way that captures the strongest colour while balancing beauty, clarity, weight retention, and durability.

Potential cutting options include a round, cushion, or emerald cut. A round may bring out the most brilliance and life, a cushion may preserve more weight while giving the stone a softer presence, while an emerald cut could create a more refined and architectural sapphire if the internal structure allows.

The finished sapphire is expected to sit in a medium to medium-dark green / teal range, with an estimated finished weight target around 6ct. The final result will depend on how the stone responds during preforming and faceting, and may vary depending on the chosen cutting direction.

Offered as part of The Uncut Reserve, this sapphire gives the buyer the opportunity to enter the process before the stone is cut. Rather than simply choosing a finished gem, the client is invited into the transformation — reviewing the cutting possibilities, understanding the trade-offs, and helping guide the final direction of the sapphire.

As with all natural sapphire rough, the final outcome cannot be guaranteed before cutting. Finished weight, clarity, tone, colour distribution, and inclusion visibility will depend on the internal structure of the crystal. The Sapphire Merchant will guide the process with the aim of revealing the best possible finished gem from the rough.

This is not simply a rough sapphire. It is a private sapphire commission — a natural Australian crystal with teal colour locked inside, selected for its potential, shaped through expert cutting, and documented from rough to finished gem.

Reserve Project 02 and begin the journey from rough to finished sapphire with The Sapphire Merchant.

Gem Type: Natural Sapphire Corundum

Collection: The Uncut Reserve

Colour: Green / Teal

Rough Weight: 18.53ct

Shape: Natural Rough

Treatment: Unheated

Origin: Australia

Measurements: 

Lab Certification: GIA after cutting

Potential Cutting Options: Oval, Cushion, Emerald Cut, or Pair of Rounds

Estimated Finished Weight: 6ct target (+2/-1ct) / Cut dependent

Estimated Finished Clarity: Eye clean to slightly included, depending on final cutting direction

Estimated Finished Tone: Medium dark

Expected Inclusions After Cut: Natural inclusions may remain visible under close inspection

This 18.53ct Australian sapphire rough was selected by The Sapphire Merchant for the colour concealed beneath its natural outer skin.

In its rough form, the stone appears dark and understated from some angles, with the quiet surface character often seen in Australian sapphire rough. Under light, however, the crystal opens to reveal a bright green to yellow-green body colour, with subtle teal undertones visible through parts of the stone. This contrast between the darker exterior and the colour held within is what gives Project 04 its story.

Offered as part of The Uncut Reserve, this sapphire gives the buyer the opportunity to enter the process before the stone is cut. Rather than choosing a finished gem from inventory, the client is invited into the transformation — reviewing the cutting possibilities, understanding the trade-offs, and helping guide the final direction of the sapphire.

This piece has been selected with two preferred cutting directions in mind: an emerald cut or a cushion. An emerald cut could create a refined, architectural sapphire with clean lines and a more elegant presence, provided the internal structure allows. A cushion may offer a softer and more romantic finished shape, with greater flexibility to preserve weight, manage tone, and work around the natural features of the rough.

The final cutting direction will be chosen after careful assessment of the crystal. The goal will be to reveal the strongest colour possible while balancing beauty, clarity, durability, and weight retention. Because this sapphire shows both darker natural skin and brighter colour beneath the surface, orientation will be especially important in determining the final tone and appearance of the finished gem.

As with all natural sapphire rough, the final result cannot be guaranteed before cutting. Finished weight, shape, colour, tone, clarity, and inclusion visibility will depend on the internal structure of the crystal and how it responds during preforming and faceting. The Sapphire Merchant will guide the process with the aim of creating the most beautiful and considered finished sapphire possible.

This is not simply a rough sapphire. It is a private sapphire commission — a natural Australian crystal with green light held beneath the surface, selected for its potential and shaped through expert cutting.

Reserve Project 04  and begin the journey from rough to finished sapphire with The Sapphire Merchant.