John Dyer haw can i send you a picture of 2 beatiful stones that i have found...they have form of the hart and they scratch the glass...maby you can tall me what are they...thank you and i am sorry for my writen english...
I guess Im asking randomly but does anybody know a way to get back into an Instagram account?? I was dumb forgot my password. I love any tips you can offer me
@Junior Jason Thanks so much for your reply. I got to the site thru google and Im trying it out now. Looks like it's gonna take a while so I will reply here later when my account password hopefully is recovered.
Thank you for the education, it really confirms what I felt . The price is what keeps me from buying more for quality gems. Ill have to learn more patience. Thanks again for your time.
Thank you John for your very informative video.I under took a commercial cutting course in Australia. My teacher would not let us get away with bad cutting or poor polishing.
Great video!! Now to find a master cutter in Europe that understands all of this stuff! The "window" problem and the "bulge" are real problems for my collection
@@nstratford9073 actually we don't cut for other people, we just sell the finished gems we have cut. We are too busy already just trying to get a good inventory for our website (the kind of cutting we do is slow!).
How hard and how expensive are the blue diamonds please comment back I am very curious thank you for this video that blue diamond is absolutely gorgeous thank you for this video again
this was in enlightening, I have an alexandrite ring that was cut unevenly and when the light hits it, it seams off from my other rings. I have a rough 138.45 Ct alexandrite and I will be looking closely as to who will be cutting the gem and how it turns out.
They are estimates made to prove a point, not any super scientific basis but in most cases an estimate based on my own experience with cutting and gems in the market in general.
Good cut is great but the price of colored gems is more about the color, a fine royal blue sapphire with a good normal cut and small inclusions can cost hundred of times more than a flawless light blue with the best cut in the world
TThank you for the video. Im a beginner and need all the help I can get. I love and desire gems on a low budget. The price is a main factor. When I buy a window I justify it by " I need to learn how to recut gems and then Ill have a bargain gem." Is this reasonable or a fib I tell myself?
Sorry for taking so long to see your comment and get back to you! Basically recutting gems yourself is going to be more expensive (machinery of good quality will cost you at least 6-7k for the basic setup and THEN you have to learn enough to become good with it) than purchasing a decently cut gem to start with. There are some commercial cuts that are slightly better than others, watch all of our videos and that should help you know what to watch for and what to watch out for.
+Ian McDonald of course the place I am MOST likely to refer you to is my own website www.johndyergems.com ;) But there are other cutters out there, mostly located in the USA that do a good job. The more you know about cutting and what to look for the easier it is to recognize a well cut gem as opposed to a poorly cut one. We have another video on our home page that shows a little more about how to tell one from another. It covers some of the same material this video does but in more detail and more from the angle of HOW to recognize what is what.
+Joey Skylynx First of all they were either carved or just cut in smooth cabochon styles. More recently (maybe around the dates you mention?) the Jam Peg faceting machine was introduced which gave a little more control but still does not have the precise angle and index control of today's modern machines.
+John Dyer Although MANY cutters overseas still use Jam Pegs since they are cheap and fast, but the end result is not as good as a modern machine can produce with a skilled cutter. (Not talking about automated machines here, each type needs a skilled human cutter to use it.)
ahhh I have also heard something about "cleaving" mentioned by a friend, which has lead me to something regarding overall internal structure being used to carve the stone. Any idea what this might be? Another thing which I found while researching cleaving is just overall taking a chisel and taking off bits of stone in order to form an overall shape.
+Joey Skylynx the "cleavage plane" is a direction of the crystal lattice that does not hold together as well and is more subject to splitting than other directions. Think of it like a book, if you try to tear the book across the pages it is hard or impossible to do. But if you open the book and "tear" it in the directions the pages run then it is easy. This is why you see movies of people "splitting" diamonds, they have a cleavage plane and this used to be used sometimes to divide them into smaller gems with a well struck blow for later faceting. Risky, but it was done!Each mineral type will have cleavage planes (or the lack thereof) typical to its species. If you have a topaz you can be sure it has ONE listing cleavage plane. If you have the crystal form to look at you can know that it will be parallel to the base of the crystal. In a cut gem it might be in any direction since you no longer know which direction the gem was cut in. Some minerals have no cleavage, others can have 4 different directions of cleavage.These cleavage planes can be used for parting the gem into smaller pieces prior to cutting, but are NOT how a gem is cut. If you go to: johndyergems.com/videotutorials.html the first video shows how gems are cut.
Ah very cool. Also, as it stands what would be a good starting point for a faceting machine? Is their any inexpensive jamb pegs which could be found on the internet or is it always at the very least a $200 to $500 investment?
Hello, you can order online at our website: www.johndyergems.com or if you have any questions you can contact us at our FB page: facebook.com/JohnDyerGem/
Tesco is the living proof that people dont care about this stuff.Give them crap but cheap stuff 99.9 % vvill buy it.This video vvill vvork for 0.1% people the last remaning sane humans the last Mohicans. GG mate
Can someone please direct me to some sort of list of different cuts? I keep seeing ‘rose cut’ gems on jewellery sites and can’t help but think DAMN that’s ugly!
How do you measure "amazing" in percentage? Amazometer of course. If you want people to take you seriously back up your statements with real numbers and real units, because fake units make your video 10 to 100% less "trustable"
These Percentages are approximations based on our own experience with gems in the market and cutting in general, but if you want a video without the percentages please check out our other video here: ruclips.net/video/eG-vX1OFWXo/видео.html
It doesn’t make sense to me cuz cheap gems are cut by the computer controlled machine their proportion are close to perfect and the fine diamond grinding plate is cheap even the best ones so good finish is cheap. Precision cuts are cheap it just matter of the design. From my point of view DO NOT over pay for good cuts they are not expensive now days unless it’s by hand. Ps Good machines can cut and polish at least 200 1 carat diamond per hour per machine, efficient ones are up to 600 piece! The accuracy of those machine is +_0.01 mm they are extremely accurate as long as the design is good. No offense, there must be so much things I don’t know about gem cutting. I’m just a mechanic I used to design those things for the industry. All I’m saying is you don’t have to pay much for machine cut gems even it’s really really good still it’s cheap.
@@lilindadudu also, computerized cutting only makes sense for very cheap gems or small gems, we use machines that allow precise angle and rotation control, but still they are operated individually by humans, and only cut one gem at a time. This is what makes most sense with more valuable gems since it is very common to find an inclusion or other reason to modify a little bit (or a lot) the original cutting plan. Computers are not good at making these kinds of subjective decisions or recognizing internal inclusions. To achieve efficiency with mass cutting machines you need to be cutting many stones per machine and ALL those stones must be cut exactly alike so this does not allow the special designing of the cut to the individual gem like cutting by a human does. Not only that, but cutting so many gems at one kind a machine cannot have the same level of quality inspection of the polish like cutting by a human can, a human eye with magnification is extremely sensitive at finding tiny defects in polish quality, I have not seen any mass cutting machine equipped with scanners able to replicate this yet. And even if a scanner was able to do this on a machine cutting 100-200 stones per batch to correct a small scratch on ONE of those gems would require ALL of the gems to return to the polishing wheel and so possibly introduce a scratch on another one. In practice machine cut gems just cannot have the same quality level of polish we can achieve. Machine cutting does have a good place for cutting tiny gems that are not economical to cut by hand, but I don't see the larger one of a kind gems being executed by a computer any time soon.
While watching this video i learned 20 -80% more about the difference of proper and improper cuts.
happy to have helped
This video had 27 to 89% more percentages than I was expecting
Lol, well I hope it was good watch! ;)
John Dyer haw can i send you a picture of 2 beatiful stones that i have found...they have form of the hart and they scratch the glass...maby you can tall me what are they...thank you and i am sorry for my writen english...
I guess Im asking randomly but does anybody know a way to get back into an Instagram account??
I was dumb forgot my password. I love any tips you can offer me
@Johan Israel Instablaster ;)
@Junior Jason Thanks so much for your reply. I got to the site thru google and Im trying it out now.
Looks like it's gonna take a while so I will reply here later when my account password hopefully is recovered.
Amazing design and awesome idea of cutting gemstone.
thank you!
That was a very good piece of education. Thanks for the enlightenment.
You are welcome!
40-90% thanks!
I didn't realise you could measure "amazingness" and "wow" lol.
anyway I liked the video haha
Happy you liked it :)
So true :)
Lots of percentages lol none the less I learned a lot! Thank you for the info and inspiration. You are truly amazing at what you do.
You're welcome! Glad it helped.
This was SO interesting!!!
Thank you for the education, it really confirms what I felt . The price is what keeps me from buying more for quality gems. Ill have to learn more patience. Thanks again for your time.
Thank you for this informative video. It helped fill in some of the “gaps” I had in knowledge about commercial cut stones. Great, clear examples.
Happy to have helped
Very interesting information.
Thanks for posting.
Happy you liked it Barry :)
I watched the whole video and learned alot
Glad it helped :)
Very good video!
Good Educational Video. Thank you John.
QVC hosts be like "Look at that incredible window!" "Asymmetry is so in style right now." "A thin girdle, who doesn't want that, right ladies?"
Thank you John for your very informative video.I under took a commercial cutting course in Australia. My teacher would not let us get away with bad cutting or poor polishing.
+Richard Vaughan Glad you liked the video! :)
What did the course cost over there? How long was it and what do you need to start? I'm very interested I want to start one here so bad!
The course at Inverell Tafe NSW is no longer their sadly.There is some talk of it restarting
Try contacting TAFE New England NSW
Richard Vaughan I definitely will. And what would I have to do to become a gem cutter in America? do I need a certificate, or college or something?
I learned a lot from this. Thank you.
Thanks! Happy it helped.
Nice
I estimate that 20-40% of the percentage statistics cited in this video are estimated.
Great video!! Now to find a master cutter in Europe that understands all of this stuff! The "window" problem and the "bulge" are real problems for my collection
We sell to Europe! Or you can purchase from a reseller of ours based in Germany if you don't want to deal with shipping from outside the EU.
@@JohnDyerGems I think im more interested in your cutting services. I'll look you up!
@@nstratford9073 actually we don't cut for other people, we just sell the finished gems we have cut. We are too busy already just trying to get a good inventory for our website (the kind of cutting we do is slow!).
Nice video! Thank you!
But you need to work on your percentage concepts, buddy
;)
Other than Asymmetry being misspelled, a good piece of information!
How hard and how expensive are the blue diamonds please comment back I am very curious thank you for this video that blue diamond is absolutely gorgeous thank you for this video again
Hello Martin, diamond is a material we do not work with, so we really can't give a very good assessment on value. Happy you like our work.
Very very.nice
Thank you! :)
More videos like this please?
We're working on making more.
John Dyer Gems, exciting news!
this was in enlightening, I have an alexandrite ring that was cut unevenly and when the light hits it, it seams off from my other rings. I have a rough 138.45 Ct alexandrite and I will be looking closely as to who will be cutting the gem and how it turns out.
Hello, if you want we can refer chriswolfsberg.com/ (check out his work as well) ;)
I've love to learn how to cut stones!!! Do you teach?
Hi Jon, unfortunately I don't.
Do you teach any lapidary classes John?
No I don't.
That was a great for learning but i wish to know from where these percentages come from hahahahaha
They are estimates made to prove a point, not any super scientific basis but in most cases an estimate based on my own experience with cutting and gems in the market in general.
Good cut is great but the price of colored gems is more about the color, a fine royal blue sapphire with a good normal cut and small inclusions can cost hundred of times more than a flawless light blue with the best cut in the world
But a lousy cut can make the color a lot worse too and that makes the value and saleability far lower. (As the video shows.)
Show Parabéns lindas
Obrigado!
TThank you for the video. Im a beginner and need all the help I can get. I love and desire gems on a low budget. The price is a main factor. When I buy a window I justify it by " I need to learn how to recut gems and then Ill have a bargain gem." Is this reasonable or a fib I tell myself?
Sorry for taking so long to see your comment and get back to you!
Basically recutting gems yourself is going to be more expensive (machinery of good quality will cost you at least 6-7k for the basic setup and THEN you have to learn enough to become good with it) than purchasing a decently cut gem to start with. There are some commercial cuts that are slightly better than others, watch all of our videos and that should help you know what to watch for and what to watch out for.
Thank you for the info, will do.
Is it possible to repairing windowed gemstone to windowless?
You'll have to basically re-cut the gemstone, loosing even more weight. Depending on the gem and its size it won't do.
so where should somone go to find non-commercially cut gems?
+Ian McDonald of course the place I am MOST likely to refer you to is my own website www.johndyergems.com ;)
But there are other cutters out there, mostly located in the USA that do a good job. The more you know about cutting and what to look for the easier it is to recognize a well cut gem as opposed to a poorly cut one. We have another video on our home page that shows a little more about how to tell one from another. It covers some of the same material this video does but in more detail and more from the angle of HOW to recognize what is what.
Gems are so cute and valuable. I want to own them all and put them in a giant pile of treasure!
Hey John, what was the old, old school method for cutting gemstones? For example, in the 1700's to 1800's.
+Joey Skylynx First of all they were either carved or just cut in smooth cabochon styles. More recently (maybe around the dates you mention?) the Jam Peg faceting machine was introduced which gave a little more control but still does not have the precise angle and index control of today's modern machines.
+John Dyer Although MANY cutters overseas still use Jam Pegs since they are cheap and fast, but the end result is not as good as a modern machine can produce with a skilled cutter.
(Not talking about automated machines here, each type needs a skilled human cutter to use it.)
ahhh
I have also heard something about "cleaving" mentioned by a friend, which has lead me to something regarding overall internal structure being used to carve the stone. Any idea what this might be?
Another thing which I found while researching cleaving is just overall taking a chisel and taking off bits of stone in order to form an overall shape.
+Joey Skylynx the "cleavage plane" is a direction of the crystal lattice that does not hold together as well and is more subject to splitting than other directions. Think of it like a book, if you try to tear the book across the pages it is hard or impossible to do. But if you open the book and "tear" it in the directions the pages run then it is easy.
This is why you see movies of people "splitting" diamonds, they have a cleavage plane and this used to be used sometimes to divide them into smaller gems with a well struck blow for later faceting. Risky, but it was done!Each mineral type will have cleavage planes (or the lack thereof) typical to its species. If you have a topaz you can be sure it has ONE listing cleavage plane. If you have the crystal form to look at you can know that it will be parallel to the base of the crystal. In a cut gem it might be in any direction since you no longer know which direction the gem was cut in. Some minerals have no cleavage, others can have 4 different directions of cleavage.These cleavage planes can be used for parting the gem into smaller pieces prior to cutting, but are NOT how a gem is cut. If you go to: johndyergems.com/videotutorials.html the first video shows how gems are cut.
Ah very cool.
Also, as it stands what would be a good starting point for a faceting machine? Is their any inexpensive jamb pegs which could be found on the internet or is it always at the very least a $200 to $500 investment?
this video would be 1 to 99 percent better would it be without the percentage data!!
apart from that i'm 10 to 90 percent pleased viewing this video.
Thank you!
Where can I buy well-cut gems in Canada ?
Hello, you can order online at our website: www.johndyergems.com or if you have any questions you can contact us at our FB page: facebook.com/JohnDyerGem/
These percentages are hilarious.
Hello,how i can know if my polished it s enougth during cutting?thanks 😊
Tesco is the living proof that people dont care about this stuff.Give them crap but cheap stuff 99.9 % vvill buy it.This video vvill vvork for 0.1% people the last remaning sane humans the last Mohicans. GG mate
;)
Can someone please direct me to some sort of list of different cuts? I keep seeing ‘rose cut’ gems on jewellery sites and can’t help but think DAMN that’s ugly!
That will differ from stone cutter to stone cutter, we have our list of our own cuts here: www.johndyergems.com/john-dyer-gemstone-cut-names.html
How do you measure "amazing" in percentage? Amazometer of course. If you want people to take you seriously back up your statements with real numbers and real units, because fake units make your video 10 to 100% less "trustable"
These Percentages are approximations based on our own experience with gems in the market and cutting in general, but if you want a video without the percentages please check out our other video here: ruclips.net/video/eG-vX1OFWXo/видео.html
It doesn’t make sense to me cuz cheap gems are cut by the computer controlled machine their proportion are close to perfect and the fine diamond grinding plate is cheap even the best ones so good finish is cheap. Precision cuts are cheap it just matter of the design. From my point of view DO NOT over pay for good cuts they are not expensive now days unless it’s by hand. Ps Good machines can cut and polish at least 200 1 carat diamond per hour per machine, efficient ones are up to 600 piece! The accuracy of those machine is +_0.01 mm they are extremely accurate as long as the design is good. No offense, there must be so much things I don’t know about gem cutting. I’m just a mechanic I used to design those things for the industry. All I’m saying is you don’t have to pay much for machine cut gems even it’s really really good still it’s cheap.
Check a finished cheap gem and a well cut on, you'll see the difference.
John Dyer Gems True.
@@lilindadudu ;)
@@lilindadudu also, computerized cutting only makes sense for very cheap gems or small gems, we use machines that allow precise angle and rotation control, but still they are operated individually by humans, and only cut one gem at a time. This is what makes most sense with more valuable gems since it is very common to find an inclusion or other reason to modify a little bit (or a lot) the original cutting plan. Computers are not good at making these kinds of subjective decisions or recognizing internal inclusions.
To achieve efficiency with mass cutting machines you need to be cutting many stones per machine and ALL those stones must be cut exactly alike so this does not allow the special designing of the cut to the individual gem like cutting by a human does. Not only that, but cutting so many gems at one kind a machine cannot have the same level of quality inspection of the polish like cutting by a human can, a human eye with magnification is extremely sensitive at finding tiny defects in polish quality, I have not seen any mass cutting machine equipped with scanners able to replicate this yet. And even if a scanner was able to do this on a machine cutting 100-200 stones per batch to correct a small scratch on ONE of those gems would require ALL of the gems to return to the polishing wheel and so possibly introduce a scratch on another one. In practice machine cut gems just cannot have the same quality level of polish we can achieve.
Machine cutting does have a good place for cutting tiny gems that are not economical to cut by hand, but I don't see the larger one of a kind gems being executed by a computer any time soon.