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Untreated Precision-Cut Gemstones (better it does not get...)

Razor-Sharp Master-Cuts! From the best cutters of Europe, Asia and the USA. Nothing less but perfect! 

What is a precision cut and why are they more expensive? Read on below....

Lively pastel purple Ceylon sapphire
Price:
$3,600.00
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1.75 Carat
Lively Pastel Purple
Medium Dark 60
Very Lightly Included

Lively violet pair of Ceylon scapolite

1.57 Carat (sold)
Lively Violet
Medium 50
Free of Inclusions

white beryl emerald
Price:
$1,560.00
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4.85 Carat
Aqua White
Lightly Included

Lively violet Ceylon scapolite
Price:
$425.00
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1.01 Carat
Lively Violet 
Medium 50
Lightly Included

Deep orange yellow citrine unheated from Brazil
Price:
$2,100.00
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4.07 Carat
Golden Yellow Heart
Medium Dark 50
Free of Inclusions

lemon quartz without heat treatment
Price:
$1,900.00
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21.84 Carat
Silvery Lemon Yellow 
Light 30
Free of Inclusions

precision cut emerald shaped noheat ruby
Price:
$12,500.00
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1.16 Carat
Deep Vivid Red 
Medium Dark 75
Very Lightly Included

Tsavorite Garnet certified and free of inclusions
Price:
$2,800.00
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1.12 Carat
Deep Green Green 
Medium Dark 80
Free of Inclusions

merelani tsavorite garnet over 2 carat
Price:
$5,900.00
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2.46 Carat
Blazing Bright Green 
Medium 50
Free of Inclusions

Lively marine blue Tanzanian sapphire
Price:
$4,900.00
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2.43 Carat
Lively Marine Blue
Medium Dark 60
Lightly Included

Purple blue green Tanzanite
Price:
$12,750.00
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6.64 Carat
Purple Blue Green 
Medium Dark 60
Free of Inclusions 

certified round brilliant mali garnet
Price:
$450.00
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0.50 Carat
Lime Green 
Medium Dark 60
Free of Inclusions

Deep steel blue Tanzanian spinel in unique precision cut
Price:
$7,250.00
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3.66 Carat
Violet Steel Blue
Medium Dark 60
Very Lightly Included

 

25 carat unheated citrine natural color
Price:
$5,280.00
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25.60 Carat
Deep Golden Yellow
Medium Dark 70
Free of Inclusions​

Price:
$4,200.00
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2.17 Carat
Fresh Grass Green
Medium 50
Free of Inclusions

Creamy golden yellow Ceylon sapphire
Price:
$9,600.00
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2.80 Carat
Peachy Golden Yellow 
Medium 45
Free of Inclusions

Multicolored Mozambique tourmaline
Price:
$6,800.00
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5.06 Carat
Multicolored
Medium 50-60
Free of Inclusions

 

Lively reddish purple Ceylon sapphire
Price:
$1,950.00
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1.32 Carat
Lively Reddish Purple
Medium Dark 60
Free of Inclusions

golden yellow tourmaline
Price:
$1,220.00
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2.18 Carat
Golden Yellow
Medium Dark 70
Free of Inclusions

 

peach tourmaline
Price:
$1,800.00
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2.44 Carat
Golden Orange
Medium Dark 60
Free of Inclusions

 

Multicolored clean Mozambique tourmaline
Price:
$2,680.00
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2.99 Carat
Multicolor
Medium 50-60
Free of Inclusions

 

Rich orange pink pair of Malaya garnets

5.61 Carat (sold)
Rich Orange Pink 
Medium Dark 75
Twice No Inclusions

Price:
$1,690.00
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3.13 Carat
Deep Orange Red
Medium Dark 75
Free of Inclusions

Royal blue Australian sapphire
Price:
$2,500.00
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0.99 Carat
Royal Blue
Medium Dark 80
Very Lightly Included

Maize yellow African sapphire
Price:
$880.00
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0.67 Carat
Maize Yellow
Medium 50
Very Lightly Included

Sunshine yellow Ceylon sapphire
Price:
$7,110.00
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4.80 Carat
Sunshine Yellow
Light 30
Lightly Included

Greenish golden yellow Mozambique Tourmaline
Reg. Price:
$1,220.00
Sale Price:
$750.00
Save:
$470.00
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1.97 Carat
Greenish Golden Yellow
Medium 50
Lightly Included

2.74 Carat (sold)
Golden Orange Peach
Medium Dark 60
Free of Inclusions​

ROUND EXTRA FINE CLiNOHUMITE
Price:
$1,900.00
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1.33 Carat
Silky Neon Orange
Medium Dark 60
Lightly Included

Orange copper Vietnamese Zircon
Price:
$2,400.00
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5.05 Carat
Orange Copper
Medium Dark 70
Free of Inclusions

 

Neon green African tourmaline
Price:
$980.00
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0.97 Carat
Fresh Neon Green
Medium Dark 75
Free of Inclusions

Pistachio green African tourmaline
Price:
$1,800.00
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3.52 Carat
Pistachio Green
Medium 50
Free of Inclusions

Gold and yellow Mozambique Tourmaline
Price:
$650.00
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1.20 Carat
Gold & Yellow
Medium Dark 60
Lightly Included

 

Fancy diamond yellow Ceylon sapphire
Price:
$3,800.00
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2.06 Carat
Bright Silky Yellow
Light 33
Very Lightly Included

apple green natural Burma peridot over 20 carats
Price:
$35,550.00
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23.48 Carat
Rich Apple Green
Medium Dark 70
Lightly Included

Tinted white Ceylon sapphire
Price:
$1,425.00
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0.80 Carat
Tinted White
Free of Inclusions

Aqua white and black crystals topaz and tourmaline
Price:
$2,950.00
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14.50 Carat
Aqua White
Black Tourmaline Crystals

cut in germany quartz
Price:
$1,950.00
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19.57 Carat
Silky White
Free of Inclusions​

four carat untreated kite shaped ruby

4.21 Carat (sold)
Radiant Orange Red
Medium Dark 65
Lightly Included

Maize yellow Ceylon sapphire
Price:
$4,280.00
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2.42 Carat
Maize Yellow
Medium 50
Lightly Included

 

fine unheated ruby over two carat

2.79 Carat (sold)
Deep Red Orange
Medium Dark 75
Lightly Included

untreated green chrysoberyl cut by peter tarroca
Price:
$4,800.00
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4.32 Carat
Olive Green
Medium Dark 60
Free of Inclusions

Price:
$2,650.00
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13.34 Carat
Apricot Yellow
Light Medium 40
Free of Inclusions​

fire orange opal
Price:
$14,500.00
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14.56 Carat
Neon Orange
Medium Dark 70
Free of Inclusions

untreated natural amethyst in best cutting
Price:
$2,450.00
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12.28 Carat
Lively Violet Purple
Medium Dark 60
Free of Inclusions​

Sky blue Montana sapphire
Price:
$1,200.00
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0.51 Carat
Sky Blue
Medium 50
Lightly Included

Price:
$440.00
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1.28 Carat
Color Changer
Light 25
Lightly Included

Maize yellow Ceylon sapphire
Price:
$6,800.00
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3.65 Carat
Maize Yellow
Medium 50
Very Lightly Included

precision cut 8 carat orange hessonite
Price:
$3,400.00
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7.93 Carat
Cinnamon Red Orange
Medium Dark 75
Translucent

ten carat unheated citrine
Price:
$3,250.00
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9.13 Carat
Bright Orange Yellow
Medium Dark 60
Free of Inclusions​

Gold copper Ceylon Zircon.
Price:
$1,950.00
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4.60 Carat
Gold/Copper
Medium Dark 60
Free of Inclusions

 

Reg. Price:
$550.00
Sale Price:
$400.00
Save:
$150.00
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2.15 Carat
Color Changer
Light 20
Lightly Included
Lavender pink Ceylon spinel

2.77 Carat (sold)
Lavender Pink
Medium 60
Very Lightly Included

 

Violet purple African sapphire
Price:
$950.00
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0.55 Carat
Neon Violet Purple
Medium Dark 60
Lightly Included

 

Fine untreated citrine in innovative cutting
Price:
$2,900.00
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5.22 Carat
Rich Golden Yellow
Medium Dark 65
Free of Inclusions​

Bubblegum pink African sapphire
Price:
$1,250.00
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0.48 Carat
Bubble Gum Pink
Medium Dark 60
Lightly Included

Intense pink purple African sapphire
Price:
$1,450.00
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0.65 Carat
Intense Pink Purple
Medium Dark 60
Lightly Included

 

Electric lemon yellow African sapphire
Price:
$1,400.00
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0.83 Carat
Electric Lemon Yellow
Light Medium 40
Lightly Included

Silky blue green Montana sapphire
Price:
$2,400.00
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1.29 Carat
Silvery Blue Green
Medium 40
Lightly Included

Arctic green blue Montana sapphire
Price:
$1,500.00
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0.87 Carat
Arctic Green Blue
Light 30
Lightly Included

Pinkish maroon Ceylon zircon
Price:
$1,750.00
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5.92 Carat
Pinkish Maroon
Medium Dark 70
Free of Inclusions

 

Price:
$2,100.00
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4.15 Carat
Golden Yellow
Medium 50
Free of Inclusions​

Rainbow in orange African titanite
Price:
$4,890.00
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6.45 Carat
Rainbow in Orange
Medium Dark 60
Free of Inclusions

 

Blood red Ceylon Zircon
Price:
$2,400.00
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5.28 Carat
Blood Red
Medium Dark 80
Lightly Included

 

Silvery bluish green Montana sapphire
Reg. Price:
$750.00
Sale Price:
$600.00
Save:
$150.00
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0.56 Carat
Silvery Bluish Green
Light Medium 40
Lightly Included
White Ceylon sapphire
Price:
$19,000.00
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4.88 Carat
White White
Free of Inclusions

 

Ivy green Ceylon Zircon.
Price:
$1,180.00
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2.19 Carat
Bright Ivy Green
Medium Dark 60
Lightly Included

 

Lively violet blue Montana sapphire
Price:
$1,650.00
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0.83 Carat
Lively Violet Blue
Light Medium 40
Very Lightly Included

Precision cut Brazilian citrine with no heat treatment
Price:
$5,750.00
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15.54 Carat
Rich Golden Yellow
Medium Dark 75
Free of Inclusions

Bordeaux red Ceylon Zircon.
Reg. Price:
$1,790.00
Sale Price:
$1,200.00
Save:
$590.00
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4.43 Carat
Bordeaux Red
Medium Dark 80
Moderately Included
rare collector hiddenite in lemon yellow
Price:
$6,700.00
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8.93 Carat
Bright Sea
Foam Green

Light 25
Very Lightly Included

7 carat unheated citrine in finest cutting
Price:
$4,500.00
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7.30 Carat
Rich Golden Yellow
Medium Dark 75
Free of Inclusions

precision cut high-end no-heat AGL certified padparadscha

0.94 Carat (sold)
Rich Orange Pink
Medium Dark 60
Lightly Included

Ice green blue Montana sapphire
Price:
$1,400.00
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0.73 Carat
Ice Green Blue
Light 20
Free of Inclusions

Bordeaux purple Ceylon Zircon.
Price:
$1,590.00
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5.76 Carat
Bordeaux Purple
Medium Dark 80
Free of Inclusions

 

german cut danburite as good as diamond
Price:
$2,520.00
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12.27 Carat
White White
Very Lightly Included


What are precision cuts?

All gems in this section have been facetted according the highest standards of modern gemstone cutting.

What does this mean? Ever since the first human picked up a colored crystal to adorn his hairy self or his equally hairy companion, gemstones have been shaped to look prettier, incur magic or simply fit on a string.

Perhaps beginning in Idar-Oberstein, some 500 years ago, this shaping of natural gems became an official craft. Formal rules and standards were developed, and exported worldwide.

The industrial revolution produced the tools used in today’s lapidaries from Sri Lanka to Brazil. 

Formally incorrect, this old-world craft is often called ‘hand-cutting’ but we should better refer to ‘traditional cutting’ since precision cuts are also done by hand. The quality of traditional cutting depends on the individual performance of a craftsman/women. It can be anywhere from terribly shoddy to literally brilliant.

Over the last decade, a new dimension of perfection has been reached. The computer and its software, connected to precision cutting tools, have ‘liberated’ cutters from second guessing, gut-feeling and gut-decisions.

The results are spectacular. Facets end where they are supposed to end (that is exactly where the next facet begins), culets are pinpoint centered, girdles and tables are symmetric, height of crowns and pavilions, and their relation to each other, are a result of meticulous planning, nothing is left to chance.

Each new cut is based on the always unique rough and the specific demands that each gem variety presents to the cutter with individual reflective indexes, color distributions, and all the optical miracles that nature has blessed us with.

This is not to say that precision cuts are lifeless machine-based products. Designing a cut is still a creative act of art. Precision cutters have their own styles and characters, even if they use CAD and 3D software. Some are better than others. Each is unique.

Precision cuts need 25-50% more rough, and, as you can imagine from the qualified process, demand higher prices even than the finest traditional cutting.

Another term is ‘machine cut’, meaning that a gem is facetted in an automated process without any human input other than to program the machine doing the job. Obviously, the end-result of such a process could be very precise and flawless but will depend on the programming and quality of the machine doing the job. To my knowledge, machine-cuts are limited to cheaper rough, mostly synthetic or abundant small material.

Finally, I must explain the word ‘calibrated’. This term describes gems that are cut into given standard sizes so as to fit into mass-produced settings or so called ‘findings’. One would assume that ‘machine cut’ and ‘calibrated’ are the same, but this must not be, since a human cutter may well produce calibrated gems, though it sounds like little fun.

No doubt, the higher the value of the rough the less likely will we find calibrated and/or machine cut gems in the market.

Given the multidimensional, and often opposing, set of factors that every serious gem-design process entails, it is apparent that only human creativity and intuition can guarantee each unique and ultra-valuable ruby crystal a chance to become the most attractive gemstone possible. I hope we never get to the point of leaving this process to a machine, or do we? I don’t know.

Read about how to judge a precision cut on photo.


P.S. Excursion on fine traditional hand cutting: One needs a lens to distinguish a fine handcut from a perfect precision cut. The latter comes with exactly meeting edges, tightly ordered facets, 100% accurate angles, etc etc. all with zero human error, less with any ugly gem faux-pas. A perfect traditional handcut, like this one here, does also NOT commit any visible ugly offenses, no crude asymmetries, no fish-eye windows, no off-center culets or bad polishing etc. but under the lens you catch these little human defects that reveal the cutter's lack of design software and precision hard-ware. An experienced cutter with traditional quality tools and (most importantly) fine rough material can give a gem almost as much beauty as a precision cutter but the final detail is beyond his reach.

Does it matter, you may ask? Yes, if you love perfection and want only the best regardless of the cost. No, if you don't want to pay the precision-cut-premium, won't use the lens anyways, and 'only' want the prettiest gem for your money.

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Genuine testimonials since 2003
 

Call us TOLL-FREE from the US and Canada:
1-800-540-340-3
 
International customers please call:
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