A loose unheated Sri Lanka sapphire of intense colour and good transparency. Oval mixed cut, weighing 1.49 carats, measuring 6.5 x 5.2 x 5.1 mm.
Eric says: “A nice example of a sapphire from Sri Lanka, the land of gems and an historic source of fine sapphires. From my images, shot in London daylight, as my usual manner, one can see a delightful distribution of the violet blue hue from vivid to intense. The pavilion (base of the gem) has been cut deep to retain and maximise the saturation of the colour as is common in local fashioning of sapphires. The gem is included with microscopic ‘silk’ and crystals typically seen in Sri Lanka sapphires, none are visible to the unaided eye. There is a slight degree of surface abrasions to the facet edges consistent with normal wear.
A loose unheated Sri Lanka sapphire of delightful colour and saturation with fine transparency. Oval mixed cut, weighing 1.87 carats, measuring 7.26 × 6.06 × 4.97 mm. Not heated or enhanced in any way.
Accompanied by Bellerophon gem laboratory report number C00882, 25 Aug 2025
Eric says: “A superb example of a fine sapphire from Sri Lanka, the land of gems and an historic source of fine sapphires. As you can see it has a lovely distribution of blue colour throughout the gem and is included with delicate ‘silk’ and tiny crystals typically seen in Sri Lanka sapphires, none are visible to the unaided eye.
A loose unheated Sri Lanka sapphire of vivid colour and high saturation with superb transparency. Oval mixed cut, weighing 2.17 carats, measuring 8.60 × 6.16 × 4.62 mm. Not heated or enhanced in any way.
Accompanied by Bellerophon gem laboratory report number C00836 13 Aug 2025. Click here to see the report.
Eric says: “A gorgeous example of a sapphire from Sri Lanka, the fabled land of gems and an historic source of superb sapphires. As you can see it has a lovely distribution of blue colour throughout the gem and is included with delicate ‘silk’ and tiny crystals typically seen in Sri Lanka sapphires, none are visible to the unaided eye.”
Eric says: “This attractive gem is a fine example of sapphires from a basaltic geological source which have a deeper tone than stones from other origins. This sapphire has an ‘Oxford Blue’ coloration! Colour banding can be observed only from its side and light ‘silk’ inclusions barely seen with a 10x lens.”
A loose unheated sapphire, of basaltic origin, probably Thailand, of intense saturation and medium tone. Round mixed cut, weighing 3.70 carats, measuring 8.41 - 8.63 x 6.62 mm.
A loose unheated Sri Lanka sapphire of lovely colour and good transparency. Oval mixed cut, weighing 5.27 carats, measuring 11.82 × 9.12 × 6.00 mm. Not heated or enhanced in any way.
Accompanied by GRS gem laboratory report GCS 79235-74 dated 14 Oct 2019 (see here)
Eric says: “I love this charming example of a sapphire from Sri Lanka, the land of gems and an historic source of fine sapphires. There is a lovely distribution of blue colour throughout the gem and is included with microscopic silk and crystals typically seen in Sri Lanka sapphires, none are visible to the unaided eye. Most sapphires are heated to improve apparent colour and clarity. This fine gem doesn’t need such enhancement”.
Can be bought loose as the price quoted or with a diamond set ring at an additional price. Please contact me for further details.
Eric says: “This gem is a fine example of the rarer Yogo sapphire, mined at the Yogo Gulch and faceted many years ago; the blue is of medium strong saturation anf medium tone, evenly distributed through the gem, without any detracting secondary colours present. The clarity is eye-clean, as shown in the images.
Sapphires mined in Montana, USA, fall into two categories; the more common ones extracted from along the banks of the Missouri River which need heat treatment to reveal their bright colours, known as ‘Montana Sapphires’, and the rarer sapphires from the Yogo Gulch in Montana that need no heat treatment to reveal their vivid blue colour and are called ‘Yogo Sapphires’”.
0.99 carats, round brilliant cut, measuring 6.0mm diameter, 3.7mm in depth, not treated in any way.
Accompanied by an SSEF Gem Report 152031, 9 Feb 2026. See the scan stating “No indications of heating. Origin: Yogo, Montana (USA)”
Eric says: “Sapphires mined in Montana, USA, fall into two categories, the more common ones extracted from along the banks of the Missouri River which need heat treatment to reveal their bright colours, known as ‘Montana Sapphires’, and the rarer sapphires from the Yogo Gulch in Montana that need no heat treatment to reveal their vivid blue colour and are called ‘Yogo Sapphires’.
This gem is a superb example of the rarer Yogo sapphire, mined at the Yogo Gulch and faceted many years ago; the blue is of medium strong saturation with medium tone, evenly distributed through the gem, without any detracting secondary colours present. The clarity is eye-clean, as shown in the images”.
1.22 carats, round brilliant cut, measuring 6.45mm diameter, 4.20mm in depth, not treated in any way.
Accompanied by an SSEF Gem Report 152030. 9 Feb 2026. See the scan stating “No indications of heating. Origin: Yogo, Montana (USA)”
Eric says: “This gem is a true Padparadscha sapphire with delicate rose pink colour merging imperceptibly with a charming orange. My photo in full London daylight doesn’t do this gem justice. The pink and orange are best appreciated with your own naked eyes!”.
1.03 carats, 6.48 x 4.66 x 3.59 mm. Oval mixed cut. Unheated Sri Lanka gem with gem report (read the report here).
The padparadscha sapphire would look lovely complimented by diamond accents in a jewel.
These are something special!
On the left: 1.23 carats, 6.70 × 5.69 × 3.70 mm, cushion mixed cut. Classic Mogok minor inclusions
On the right: 1.37 carats, 6.70 × 5.64 × 3.89 mm, cushion mixed cut, Classic Mogok minor inclusions.
• Authentic Mogok Burma origin, known for exceptional quality.
• No-heat treatment, natural beauty preserved.
• Comes with SSEF gem reports for guaranteed authenticity.
Eric says “The timeless elegance of authentic Mogok Burma rubies, renowned for their unparalleled ‘traffic light red’ colour and quality. This pair of no-heat rubies comes with SSEF gem reports, ensuring their rarity and authenticity. Their vibrant hue and historical prestige would make for a treasured jewel offering both elegance and value.”
Sold as a pair but can be split as two single lots (ask for individual prices).
An attractive example of an unheated (no heat) ruby from Mogok, Burma. If you are looking for a flawless ruby this one is not for you as its inclusions are typical of this desirable location.
Oval mixed cut, 6.7 x 5.0 x 3.4mm, 0.94 carats.
In the shot of the two rubies, it’s the one on the left. The larger one, on the right, is also from Mogok, Burma, no heat, displaying noticeable inclusions. Also for sale.
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
📷 me in London daylight. Both rubies have been in my collection for decades.
A lovely example of an unheated (no heat) ruby from Mogok, Burma. If you are looking for a flawless ruby (spoiler - they do not exist) this one is not for you as its inclusions are typical of this desirable location. Taken from an antique ring, evidence the gem is from old mine production. Its bright red coloration I find difficult to capture with my iPhone camera. The ruby really needs to be seen to appreciate its beauty.
0.79 carats, cushion mixed cut, 6.2 × 5.1 × 2.8 mm
Accompanied by GPL gem report when set.
Note the outline and proportions of the gem indicate it was cut and polished decades ago.
Best viewed in person: DM if you want to know details.
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
A lovely example of an unheated (no heat) ruby from Mogok, Burma. If you are looking for a flawless ruby (spoiler - they do not exist) this one is not for you as its inclusions are typical of this desirable location. Its bright red coloration I find difficult to capture with my iPhone camera.
1.37 carats, cushion mixed cut, 7.39 × 5.50 × 3.41 mm.
Accompanied by GCS gem report.
Note the outline and proportions of the gem indicate it was cut and polished decades ago.
For sale loose or with diamond cluster ring shown.
Best viewed in person: DM if you want to know details.
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
A lovely red natural spinel, cushion mixed cut weighing 0.59 carats, measuring 6.1 × 4.3 × 2.9 mm. Burma origin, not treated.
My latest spinel acquisition; loving the strawberry jam colour of this gem. It would make for a cute statement gem in an engagement ring enhanced by a halo of natural diamonds perhaps, or as a three stone ring with a diamond of any shape on either side. The design possibilities are only limited by your imagination! We can hold your hand during the design and manufacture of your dream jewel.
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
A fine red natural spinel, cushion mixed cut weighing 1.43 carats, measuring 8.1 × 6.1 × 3.6 mm. Burma origin, not treated.
I love the hue of this spinel, blood red with a hint of purple. Would make for a spectacular statement gem in an engagement as a three stone ring with a diamond either side or in a cluster with a halo of round brilliant cut diamonds. The design possibilities are only limited by your imagination!
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
Eric says: “ this natural spinel has a charming rose pinkish red hue that I love so much. I believe gems ‘talk’ to us when we look at them intensely - this spinel shouted at me to buy it! I hope you love it too when you see it in the flesh. I shot the gem in natural London daylight yet it is so difficult to capture the vivid hue and saturation of this fine spinel.”
A natural spinel, cushion mixed cut weighing 1.61 carats, measuring 6.8 x 6.2 x 4.9 mm. Burma origin, not treated.
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
Eric says: “ I just love the juicy red colour of this spinel - strawberry jam or does it remind me of raspberry jam? Either way it would make for a striking centre statement stone in a spectacular ring or pendant. Let’s design you perfect heirloom!”
A cushion shaped mixed cut, natural unheated Burma spinel, weighing 1.92 carats, measuring 7.7 x 6.7 x 4.7 mm.
Please note: There are no UK government sanctions on trading gems from Myanmar (Burma).
Eric says:” This is a fine specimen of this rare precious stone variety. The attractive bright blue colour is due to the presence of cobalt atoms within the crystal makeup. I just love this variety and I had to purchase it when I saw it during my travels. The gem is well fashioned, having superb colour and brilliance”.
1.05 carats, oval mixed cut, measuring 6.37 × 5.33 × 4.34 mm. Accompanied by a Bellerophon, Paris gem report R-202246304, 2 Mar 2022, stating ‘No indications of any treatment’. Origin ‘Tanzania ~650 million years old’. Click here for report image,
I am offering a range of my favorite coloured stone, demantoid garnet.
Eric says “These green garnets are brighter than other green precious stones, each loose gem beautifully combines the verdant green of emerald and the brilliance of diamond. They were mined decades ago in the Urals, Russia, the origin source of the gem, and all display the desirable ‘horsetail’ inclusions so characteristic of the finest demantoid garnets. Each gem has not been treated to enhance their beauty”.
The weights of the demantoids range from 0.51 to 0.62 carats
Prices range from £1,000 to £2,065.
The matched pair in the front of the photograph weigh 0.84 carats and are £1,750 for the pair.
Please note: UK government sanctions relating to Russia do not include trading old demantoid garnets from the Urals, Russia
Please contact me using the button below if you wish to know more.
A fine example of the gem endowed with a blush of pink - a charming rose hue. Fashioned as a shield shaped step cut- not unlike a round brilliant diamond side profile.
28.85 carats, measuring 24 x 12 x 9 mm, would look fab mounted as pendant, brooch or as an outrageous cocktail ring.
Message me if you wish to view this gem or learn more details
An intense colour for the gem, weighing 27.30 carats, measuring 19.7 × 12.8 × 10.8 mm., fashioned as an ‘emerald cut’ or better named octagonal step cut.
Kunzite is the lilac-pink form of the mineral spodumene. Its colour varies from a rich vivid pure pink to a mere blush of lilac colour. Intense colours may have been subjected to colour enhancement and I believe this example may have been so treated although I cannot provide evidence. Its intensity has not faded during the many decades I have owned it.
This Kunzite would make a striking statement gem when mounted in a pendant or cocktail ring.
Tanzanite: the bluish purple to purplish blue gem variety of zoisite. Discovered in the 1960s near Mount Kilimanjaro, Tanzania, the new gem was popularised by Tiffany. It is favoured for its vivid colour saturation in fine specimens and for its very strong pleochroism (showing different hues when viewed from different directions). The majority of tanzanite sold has been heated to promote the intense colour.
I confess tanzanite is one of my less favourite blue gemstone. Perhaps that is because of its almost universal heat treatment or because it lacks any historical perspective. What I do prefer is the purplish blue colour, as shown here in my gem, to a bluish purple hue. What is your preference?
This tanzanite I’m selling is 4.15 carats, 10.1 x 8.5 x 6.3mm, cushion mixed cut, heated (of course!).
Photographed by me in natural London daylight, no filters.
No results match your search. Try removing a few filters.
Current list of loose natural diamonds with GIA grading reports.
EM 0.23 DVS1 GIA14752070 £160
PR 0.27 DVS2 GIA15357919 £190
RB 0.32 FVS1 GIA14943955 £240
OV 0.43 DSI1 GIA14367081 £390
EM 0.46 ESI1 GIA13303402 £390
MQ 0.51 DSI1 GIA15564000 £540
RB 0.58 GVS1 GIA 6177274540 £590
EM 2.03 FSI1 GIA12990916 £12,600
