Gem Cutting Tutorial - Faceting a 60 Carat Emerald
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- čas přidán 15. 03. 2020
- What happens when you mix a classic oval cut with a dazzling Portuguese style cut? In this video, Mike shows you exactly what, while cutting a whopping 60 carat piece of genuine Chatham Emerald rough! Cut just for his wife Bopie's original jewelry designs, this Emerald is sure to be a show-stopper.
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Chatham Created Gems and Diamonds | Tom Chatham
• Chatham Created Gems a...
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💎 BOPIE'S DIAMONDS AND FINE JEWELRY 💎
- on Facebook : / bopiesdiamonds
- on Instagram : / bopies
- on Pinterest : / bopiesjewelry
OR VISIT OUR WEBSITE AT www.bopies.com/
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Bopie's Diamonds and Fine Jewelry credits all music to the original composers.
You are a very wholesome guy and I'm truly getting the feeling that you enjoy sharing knowledge and wish that other people share in the joy of cutting. Thanks!
Thanks for that very nice comment.
Why your channel doesnt have atleast 3 - 5 million followers is absolutely beyond me. You my good man are truly a brilliant teacjer.Every time I have seen a video of yours, I lean back and think.. So THATS how its done.. truly amazing work. Goddammit I fxcking love absorbing actual hands on/diy/now-go-do-it-yourself, how to knowledge. NB: I bought a 4.5 ct. Untreated saphire from sri lanka. It cost me a small fortune. As in around $ 200+. I bought it with the intention of facetting it my self, and at some point end up with a unique wedding ring for my bride to be. I mean 23 years of going steady kind of justifies a gift thats above and beyond.! Had I known then, how much work and skill is needed to actual calculate,cut and facetting, polishing and mount a stone. I would have used my commen sense offcourse. But the stone is bought and just waiting. So heres a question for you.. Can you help me.. I could send it to you, I would offcourse pay you for time spendt helping.
Thank you for the compliment! Please pm me on facebook to discuss your sapphire project.
I really love synthetic gemstones, because they are a significantly more cost-effective way to get into faceting gemstones, particularly if you want to cut larger feature stones for larger rings and necklace settings, since you can readily buy dozens of carats worth of boule or slab rough to practice with. The visual effect is also very good and you can even purchase emeralds with inclusions and fluxing during the manufacturing process to simulate regional variations in emerald color and structure. So they can be very convincing for the price. Plus, the chemical composition and crystal structure are the same, so you'll get the desired effect and the cutting process will feel the same as cutting a natural emerald. Corundum and spinel are also broadly available in synthetic form, along with diamond, moissanite, and a handful of others from more specialized manufacturers. Things do get tricky if you try to search for specific gemstone types in synthetic form because of the prevalence of simulants produced from other gem materials, notably corundum used as a simulant for alexandrite, morganite, tanzanite, etc. While it is perfectly acceptable if you only want it to pass at a glance for those gems, closer inspection by an expert will reveal that they aren't actually what they look like. So it's important to know what you're buying.
I'd say a cut like this, adjusted for the index of refraction of corundum, would be suitable for that large hunk of pink sapphire boule you've got languishing about. Any particularly deep design that has plenty of facets on the pavilion and an acceptably large table should be a good way to intensify the pink color while offering some sparkle and should let you make a massively heavy stone out of that rough. I'd probably look and see if I could find one of the many flower-themed round, oval, and pentagon-shaped cut variations to see if any would make the best use of that cherry-blossom pink coloration.
The depth of that forest green color is truly amazing and it's a fantastic cut for such a stone. Really making the most of the rough. I'm sure Bopie will be happy that she got a stone even more impressive than she asked for, assuming she hasn't already made the setting for it in advance. But most custom jewelry gets made after the jeweler receives the gems for the setting, so they can sculpt the recesses for it based on the actual gemstone.
Thank you. I started working on that blob of corundum a while ago, and set it aside when I had some special orders to complete...thanks for reminding me, I need to finish that stone up. Yes, regarding Alexandrite, it is a shame that some cutter use Color Change Lab Corundum which simulates Alexandrite, but is corundum and not Alexandrite. I recently ordered a chunk of Lab created Alexandrite of excellent quality with excellent color change...should be here any day now. 🙂 Yes, you are correct, normally for larger stones, Bopie will wait until the stone is cut and then finish designing the mounting so that it is an exact fit for the stone.
Happy faceting right back at you 🙂
Thank you!
Very nice, informative video, Mike. 👍🏼 A 30.8% yield with an extra piece trimmed off to use elsewhere is excellent use of the piece of rough... Good Job!!!
BTW: I like the improved focus in this video. Thanks for sharing your knowledge and workmanship.
John, thanks! Yes, always good to have some trim pieces left over. But...unless Tom Chatham changes his mind, soon enough I will be out of Chatham rough.
Awesome video and very informative! I can’t wait for more! I love the stone, beryllium gems are my favorite!
Edit: haha! I love the “May your facets always meet” at the end too! :)
Thank you!
Spectacularly beautiful!
Thank you.
Always watching sir very imformative i learn so much thank you for sharing 😍😍😍😊😊😊😊
Thank you!
Very good video,thanks.
You are most welcome.
Great work Pal
Thank you.
Great info
Thank you!
Thank you very much. You are just amazing you are a great teacher and mentor thank you for that. I am just starting out I collect Stones I'm a rock hound and now I would like to make them look beautiful if you have any tips for me on beginning or where I can buy product that is not too expensive for beginners that would be greatly appreciated.
thank you stay safe.
See if there is a gem cutting club in your local area. If so, visit them and see what equipment they have that you can use.
You're so meticulous !!!❤️❤️❤️
Thank you.
muito bom. estou aprendendo muito.
You are welcome.
@@BOPIESDiamondsFineJewelry all the best
You do great work. Has anyone told you that you sounds like Jeff Bridges?
Thank you. Yes, I have been told that on occasion. Thanks again.
Mike where do you recommend buying rough facet grade material from such as the emerald piece in this video and other affordable larger pieces for newbies to start working with?
For a newbie, I would recommend going to gem shows. The Tucson shows are probably the best in the world...Denver has a great show, and there are others. I would also recommend you find a local gem club as the cutters there will be able to steer you to some rough dealers. If you PM me on facebook, I can also give you some information.
Thanks for the vdo a-some, question say we have a amethyst stone and would like to get it fastened , should we go to a regular jewelry shop , or leave it as it is? Also the price would it drop or increase and how much are we looking at to get it cut ? Thanks again any advice would be great.)
In my opinion, if you have a piece of Amethyst rough, the decision to facet it or leave it as a specimen would depend on the quality of your rough and it's size. If it is heavily included, you should consider not faceting it. Regarding the price, the cut gemstone should be more valuable than an uncut piece of rough (or else no one would be cutting gemstones). Regarding your question on where to go to talk about getting a gemstone cut. No, a regular jewelry shop would probably not know any gem cutters to refer you to. You might try to see if there is a lapidary club in your area and take your Amethyst there. Regarding the cost of cutting a piece of Amethyst. It would depend on which gem cutter you are talking to as well as the size of the Amethyst, the quality, the shape, the design you want the gemstone cut into, how soon you need it.
Do you think the rough is a bit too dark for that type of cut?
I am always willing to learn something new. What type of a cut would you recommend in order to cut a very large gemstone out of this rough?
I would like to ask you how do you set the depth of cut and control it with DAD please ?
I use my loupe to look at the facet and see how far I need to move the facet (how much I need to cut) if it's a lot I will turn the handle on my machine as much as 3 to 5 full numbers. If I only need to move the facet a little I just move the handle so that the DAD increases by.01 and cut it and take another look with my loupe.
what is the make/model of that cutter?
I use an Ultra Tec V5.
Isn't the general rule between lab and natural is lab is 10% of the cost of a natural? At least that is what I typically hear when it comes to diamonds
Sorry, no. There is no 10% rule. For example, there are three methods to create colored gemstones in a Lab. The most common being Flame Fusion. Lab created Sapphire using the flame fusion method is inexpensive. However, lab created Sapphire using the pulled method is relatively much more expensive than the flame fusion method, so it has nothing to do with the cost of the gemstone. As far as diamonds, I also disagree with what you 'typically' hear as the price of lab created diamonds is not stable, and not tied to 10% of natural diamond. Lab created diamonds prices have gone down considerably recently.
Great video as always, how much roughly would it cost for a faceting machine to start cutting for a amateur just out of interest? I’m sure there is so much to learn!!
Prices vary. There are many machines out there. I would recommend you visit a local Gem and Mineral Club...hopefully there is one in your area. They may even have machines available for you to try out.
BOPIE'S Diamonds & Fine Jewelry
Thank you for the reply, I’m in the uk so not any clubs that I’ve managed to find in my area but will keep searching! It’s very interesting!
Top
Thank you!
One standard ultratec here on Brazil cost's the same price of a Corolla, or a popular house. The National mast machine is ineficient and much expensive. Many gems was destroied and ruined by jimb peg lapdary until today. Historys from big Aquamarine bronken by poor quality lapidary it's normal. Nice vídeo.
Thank you!
I have a huGe emerald coloured stone that came off a white dirty white coloured rock one weighs 129 carrat but I don't any one to test it
Trust
Start with what the stone looks like. How is it formed...in what shape....are there inclusions??? A photo would help with step 1.
hello, good day, friend, it would be great to buy a well-detailed guide book. I would like to learn this hobbies I have my rare stones. and the truth. here where I live I don't know who does this work but for my part that looks great to learn
There are a number of good books on gem cutting. One is Faceting 1, Learn The Fine Art of Gem Faceting, It's Easy! Sixth Edition by Tom Mitchell.
Salam kenal dari indonesia saya punya beberapa batu bongkahan dan ada uda jadi semua mau di jual gimana sarannya ??
Thank you! ...I think :-) Can you say that in english?
@@BOPIESDiamondsFineJewelry maaf saya pun tak bisa bahasa inggris makasih kunjungan nya kembali
Hey man, i just graduated last year from highschool. Im not too excited about 'homework' lol
lol
How to remove epoxy from stone?
After the transfer, when I am 1/2 done, I use a torch. After I finish the entire stone, I put the dop/stone into Acetone overnight. Some cutters have told me "Attack" is better than Acetone. Some people use alcohol to remove the epoxy. One cutter that I know of, puts the stone/dop into water on the stove and boils the water....never tried that yet.
Thank you!
Lab grown shouldn’t be expensive at all just saying. I’ve strongly fought against the current tendency of selling them at the same price that naturals are sold for.
I would not think anyone would sell lab created gems at the same price of natural gems. However, some lab created gems are a bit pricey. I am currently awaiting a nice big chunk of lab created Alexandrite. It is NOT cheap as the method to grow it is much more expensive then say the flame fusion method. The Alexandrite I cut from this piece of rough will not be cheap, but there is no way I would believe anyone would attempt to sell lab Alexandrite for the price of natural. Natural Alexandrite in the 2+ ct range cost is in the 5 digit range, and you would have a hard time convincing me that people are selling Lab Alexandrite at that price. I can't imagine anyone buying a 2+ ct Alexandrite gemstone without a lab report from a reputable lab. Finally, I would say that anyone selling lab created gemstones MUST disclose that they are lab created. There are customers who want lab created gems, because the price is lower, but there is NO ONE who wants to pay the price of natural gems only to receive a lab created gem.
@@BOPIESDiamondsFineJewelry yeah what I meant is that they still overprice them and I have brands to prove it
@@BOPIESDiamondsFineJewelry also the last part is debatable because cultured pearls are technically created by us in a lab controlled environment and over time they’ve grown to be as expensive as natural ones…
There are synthetic emeralds available that are a better choice than a Chatham grown stone. A Chatham looks nothing like a natural emerald. It is way too "blue" and is totally lacking inclusions. Just a bad option.
Brian, I am sure we all would like the names of some of your 'better choices' than Chatham for emerald rough. I know I would. Also, when I bought my rough from Chatham, before they stopped selling their rough, there were TWO types of rough available, and these two types are typically available at all the labs I have contacted in the past couple of years. The first type is typically called "Zambian" and that is the rough I used in this video...it is a bit darker or deeper of a green with a hint if blue...because that is how the typical natural Zambian emeralds look. The second type of emerald rough that Chatham was selling, and other labs sell, is typically referred to as "Columbian" and it is a little lighter, but vivid green. So your comment about 'way too blue' is incorrect as the 'Columbian' type of rough sold by Chatham has no blue. Regarding totally lacking inclusions being a bad thing. Well, I can tell you that I search continually for lab emerald rough that does not have inclusions....when I find it, guess what...the dealer ALWAYS wants a premium price because of the lack of inclusions. That is an indication that people prefer no inclusions and are willing to pay a premium. The good news for you is that if you go to your 'better choices' for lab created emerald rough, I can almost guarantee you that rough will be included..so you will be very happy!
The background "music" makes this intolerable ...
The background "music" makes this intolerable ...
The background "music" makes this intolerable ...
The background "music" makes this intolerable ...
The background "music" makes this intolerable ...
The background "music" makes this intolerable ...
The background "music" makes this intolerable ...
Gees.
Thanks Dave, I will try to improve on the music going forward. If possible, please send me a link to some copyright free music that you like and I'll see if I can incorporate it into an upcoming tutorial. Thanks again.
@@mikesackos2208 ----- Search "copyright free music". The sound of the workshop without any music might be better, giving more of a sense of the actual process, but if you want music, then get some entire song, not a five second loop of musical idiocy. A guy called Alec Steele has videos done by a really good editor. Your ambient is entirely different. Maybe some classical would be thematic? OR ... no music at all, to hear the sounds of the tools and process. Sorry I'm not a very polite person. I'm working on it.
@@davesmith5656 Yes, I want music in my videos. I just thought maybe you have a favorite tune you could share. I would gladly consider it for a future Tutorial video. Again, thanks for the advice. All comments are appreciated.
@@mikesackos2208 ---- Your video was very interesting, and I wished I could have watched more of it, because it was well done photography and you do fascinating work (except for the "music" ... gah!). Try one with just the sound of work? I used to watch golf, but the announcers drowned out all the fun of it - I think maybe folks try to do too much, sometimes. Recent America's Cup sailing got a lot of (negative) comments about the announcers. For something as refined as what you do, I personally would like to hear the sounds of it, but if you think music improves it, then get something refined to match. Idea: watch "Black Opal Direct" for a bit. The guy leaves the sound of the grinding wheels for us to hear, and different sounds "say" different things about what's actually happening.
@@davesmith5656 Noted. I will try to improve in future videos. Thanks.