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Justin K Prim
United States
Приєднався 2 кві 2006
Justin K Prim 💎 The Gemcutters Craft 💎 Magus Gems
Hello and welcome to my channel. The videos you will find here are an expression of my passion for the art and science of gemcutting and the history behind it. Watch as I uncover the secrets behind the gem cutters craft as well as dive deep into the machines being used to cut gems around the world.
Currently, my scope of research begins in Europe in the late 1300's and extends all the way until now. As the channel grows, you will hopefully find a healthy mix of instructional faceting videos (reflecting my role as faceting teacher at the Faceting Apprentice Institute), gem cutting gear vids (reflecting my role as a gear nerd), gem analysis videos, and history-based videos (reflecting my role as a history nerd).
I hope you enjoy the videos and find what you're looking for. If I've left a question unanswered, please leave a comment and let me know. If you want to follow me in other places, click the social media buttons on top.
Hello and welcome to my channel. The videos you will find here are an expression of my passion for the art and science of gemcutting and the history behind it. Watch as I uncover the secrets behind the gem cutters craft as well as dive deep into the machines being used to cut gems around the world.
Currently, my scope of research begins in Europe in the late 1300's and extends all the way until now. As the channel grows, you will hopefully find a healthy mix of instructional faceting videos (reflecting my role as faceting teacher at the Faceting Apprentice Institute), gem cutting gear vids (reflecting my role as a gear nerd), gem analysis videos, and history-based videos (reflecting my role as a history nerd).
I hope you enjoy the videos and find what you're looking for. If I've left a question unanswered, please leave a comment and let me know. If you want to follow me in other places, click the social media buttons on top.
Restoring and Transforming a 1920s Lapidary Bench into a 2020s Lapidary Bench
I love restoration videos so I wanted to try my hand at making one. This week I had the perfect project for it, which was this 1920s lapidary bench that I recently acquired in the French Jura. Over the course of a week I took off 100 years of paint, dirt, and grime and restored it to its former glory.
#restoration
💖 If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim
✨ If you would like to buy faceting merch like shirts and wall prints: www.magusgems.com
📷 You can find me posting fun gem cutting related stuff on Instagram: justinkprim
🌐 You can also find my articles and stories here: www.justinkprim.com
#restoration
💖 If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim
✨ If you would like to buy faceting merch like shirts and wall prints: www.magusgems.com
📷 You can find me posting fun gem cutting related stuff on Instagram: justinkprim
🌐 You can also find my articles and stories here: www.justinkprim.com
Переглядів: 650
Відео
Ideal angles vs. Jambpeg angles
Переглядів 496День тому
Comparing the subtle differences between an ideal design and slight angles changes that the Jambpeg gives. What do you think, does it make a difference?
Unwrapping Parcels of French Lapidary Rough from 1881
Переглядів 11 тис.14 днів тому
Here's an unusual adventure for you. 🎵 Music by epidemicsound.com If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim ✨ If you would like to buy faceting merch like shirts and wall prints: www.magusgems.com 📷 You can find me posting fun gem cutting related stuff on Instagram: justinkprim 🌐 You can also find my articles and stor...
Learning to RECUT on the Jambpeg (Cutters POV)
Переглядів 65021 день тому
In this video, I use my FraLap machine to recut a blue topaz with a chip in it. It starts as a strange, flat, checkerboard cut and I recut it to a mixed cut and remove the chip. This is my first time recutting on the Jambpeg so I think it went quite well! Thanks to Gemmology Rocks for supporting this video with the topaz that I recut. They do courses and events around the UK. Check them out her...
How I Learned to Facet Stones in Sri Lanka
Переглядів 1,2 тис.21 день тому
Here's an adventure from 2017; my first time going to Sri Lanka. If you want to visit Ratna Gem Halt, they have a website: www.ratnapura-online.com/gemstones/ You can also see them on the map: maps.app.goo.gl/2bNUyvU1Az6ctKjK8 If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim ✨ If you would like to buy faceting merch like shirts and wall p...
Sri Lankan Style Speed Cutting
Переглядів 2,8 тис.21 день тому
How fast can you cut a round brilliant? 🎵 Music by epidemicsound.com If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim ✨ If you would like to buy faceting merch like shirts and wall prints: www.magusgems.com 📷 You can find me posting fun gem cutting related stuff on Instagram: justinkprim 🌐 You can also find my articles and s...
Cutting A Gemstone in a Cabin in Utah (ASMR, no talking or music)
Переглядів 1,7 тис.Місяць тому
In this video, I setup my faceting studio in a cabin near Arches National Park and I cut a sunstone that I got from a miner in Oregon. This version has no narration, so put on your headphones and enjoy the extended cut. If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim ✨ If you would like to buy faceting merch like shirts and wall prints: ...
Cutting A Gemstone in a Cabin in Utah (7 Sided Sunstone)
Переглядів 2,6 тис.Місяць тому
In this video, I set up my faceting studio in a cabin near Arches National Park and I cut a sunstone that I got from a miner in Oregon. Enjoy the faceting adventure. If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim ✨ If you would like to buy faceting merch like shirts and wall prints: www.magusgems.com 📷 You can find me posting fun gem cu...
A Weekend Lapidary Adventure through the Jura Mountains
Переглядів 371Місяць тому
In this video, I take you on a peaceful adventure in the mountains, hunting for old lapidary machines and localities and eating a lot of cheese. 🎵 Music by epidemicsound.com If you would like to support my faceting endeavors, please become my patron: www.patreon.com/justinkprim ✨ If you would like to buy faceting merch like shirts and wall prints: www.magusgems.com 📷 You can find me posting fu...
Taking an 1825 gemstone book back to where it was written.
Переглядів 6022 місяці тому
Taking an 1825 gemstone book back to where it was written.
Replacing the Speed Controller in my Sterling Faceting Machine
Переглядів 8142 місяці тому
Replacing the Speed Controller in my Sterling Faceting Machine
A Wooden Polishing Lap for Faceting. Tell Me Everything.
Переглядів 2,4 тис.2 місяці тому
A Wooden Polishing Lap for Faceting. Tell Me Everything.
The ASMR Gemcutter - Full Series - No Talking, No Words
Переглядів 1,5 тис.3 місяці тому
The ASMR Gemcutter - Full Series - No Talking, No Words
Improve your Gemcutting Speed by Internalizing the Design Geometry
Переглядів 1,4 тис.3 місяці тому
Improve your Gemcutting Speed by Internalizing the Design Geometry
Faster Faceting by Simplifying Your Lap Sequence
Переглядів 3,2 тис.4 місяці тому
Faster Faceting by Simplifying Your Lap Sequence
The One Hour Recut - LIVE Gemcutting!
Переглядів 2,6 тис.4 місяці тому
The One Hour Recut - LIVE Gemcutting!
Retrieving a Workshop of Vintage Bunter Faceting Machines
Переглядів 7304 місяці тому
Retrieving a Workshop of Vintage Bunter Faceting Machines
Extra Skills that ALL Gemcutters Need to Know (feat. Laura Cornish, Roger Dery, & Victoria Raynaud)
Переглядів 1,4 тис.4 місяці тому
Extra Skills that ALL Gemcutters Need to Know (feat. Laura Cornish, Roger Dery, & Victoria Raynaud)
Fralap Jambpeg Faceting Machine Review
Переглядів 1,4 тис.5 місяців тому
Fralap Jambpeg Faceting Machine Review
Rue des Lapidaires [French Gemcutting Film] (1993)
Переглядів 1,1 тис.6 місяців тому
Rue des Lapidaires [French Gemcutting Film] (1993)
Cutting a Round Mixed Cut Aquamarine on a Jambpeg Faceting Machine
Переглядів 2,4 тис.6 місяців тому
Cutting a Round Mixed Cut Aquamarine on a Jambpeg Faceting Machine
Jambpeg Faceting Journey - Month 2
Переглядів 1,4 тис.6 місяців тому
Jambpeg Faceting Journey - Month 2
A Walking Tour of London's Lapidaries (Live)
Переглядів 1,7 тис.7 місяців тому
A Walking Tour of London's Lapidaries (Live)
Journey into Jambpeg Faceting - Month One
Переглядів 1,7 тис.7 місяців тому
Journey into Jambpeg Faceting - Month One
How to Make a Traveling Faceting Machine Setup
Переглядів 1,3 тис.8 місяців тому
How to Make a Traveling Faceting Machine Setup
How to Prep a Copper Lap for Polishing
Переглядів 2,9 тис.8 місяців тому
How to Prep a Copper Lap for Polishing
Learning to Cut Jambpeg - Faceting Update 1
Переглядів 1,4 тис.8 місяців тому
Learning to Cut Jambpeg - Faceting Update 1
Faceting Demonstrations at the Autumn Festival
Переглядів 3958 місяців тому
Faceting Demonstrations at the Autumn Festival
Where did you get the alchemy symbols on your handpiece table? It is epic. The stone is also absolutely stunning. Cheers!
@@Osirus1972 years ago. My magic circle for my magic tool!
@@JustinKPrim that is a most appropriate response. Love it
Cheer wine is way better than Dr Pepper lol 😂
I like it because its not a fake product, its real emerald improved by the hand of men. if you know something about jewerly you know that emeralds come from earth very cracked, clean uncracked emeralds are extremely expensive, even the ones that are quite clean have prohibitive value
What’s the percentage of stones that don’t survive this process?
@@w3vjp568 I am really not sure. If the stone doesn’t have major inclusions and you’re careful it should be ok. You never can guarantee anything though.
Perfect! I love it.
I basically use 3 step cutting for all my stones. Preform on 250 grit, pre polish on 1200 grit and polish with 50k diamond.
So exciting and absolutely powerful. Working at your magnificent bench will bring in 100 years of creativity. So fitting for "The Gemcutters Craft". You have created a family heirloom. Magnificent job Justin.
Thank you. I hadn’t thought of it as a family heirloom but yes you’re correct! This one is forever now.
I liked the before color better also.
tbh I kinda like the darker color
I had it sitting unsold for a few years before I decided to do this. In ambient light it was just a bit too dark. After heating it sold within 6 months.
@@JustinKPrim dang, alright XD, I guess in some of the shots it did look quite dark. Are there other stones that can be heat treated using a stove like this or do most require more specialized setups?
@@mr.treefrog5789 as far as I know you can only do zircons like this. Other stones need to be much hotter and need insulation and sometimes an oxygen reduced environment.
Looks great. I have refinished a TON of antiques. My parent bought out two Quebec Antique Dealers in the 1970's with intent of opening their own business selling antiques. Almost all the furniture was Pine but there was a bit of mixed hardwood, especially with chairs. Our entire home was furnished with antiques right down to our beds and dressers. That still left a garage attic and a large building right full of unfinished antiques. I learned a few formulas for stripping wood and for finishes and techniques. It was all a great experience and one definitely has a sense of satisfaction after refinishing an old antique and giving it new life. Nicely done Justin.
Thanks. It was a fun first experience. Any idea what kind of wood this is, based on color and grain pattern? I know nothing about wood or much about antiques but I’m learning.
It has many original parts, it could be returned to original working condition with the axle and disc that I have not seen. I don't think it's a problem to make the missing parts. I'm a little sorry that it's just an ordinary table for a jambpeg machine...Black paint never went well with wood, at least in my opinion it only works with iron... If temporarily it is OK, but please try to make it as it used to be, I would like it totally restored and not a repurposed table.👍
Yeah I have the laps and most of the parts for a total restore but for now I don’t need it completely restored. I chose to keep it in a way that it will be an option for the future. As for stripping down the legs, it’s just too much work. There are so many tight corners and spaces down there that the black paint was the best compromise I could achieve.
looks good enough to eat.
I like the black legs :)
Table looks awesome. I recently built my own table and necessary tools for faceting gem material. I live in Connecticut and we have a LOT of abandoned mines and quarries pre -WW2 that still have a lot of gem material in the piles such as Aqua, Green Beryl, Garnet and many others .... sothe natural progression was to learn how to find it the n cut it, then set it into a jewelry piece. The best part is I have accomplished all of those without buying anything, I made it all from scrap material and stuff I had collected as an aspiring alchemist which by doing so allowed me to learn the process...albeit the harder route but after watching every episode of the world of faceting machines 20 times each, I said Game ON...I was able to build a hand piece, a mast, a jambpeg, two lap machines, a table with lap built in, a jewelers bench and a host of other tools that I needed. So now I go look, I find, I cut and I set...It has been very fun, hard but well rewarding and I THANK YOU for a good part of that inspiration. Be well, Godspeed brother.
Wow that’s extremely impressive. Keep it up!!
in addition to lead for the white pigment there could be arsenic for the green, glad you used ppe.
Well done!
Thanks
Great work on that restauration! What did you use to plug the left hole?
Currently it’s just a piece of rubber but I have a brass on the way to cover it properly.
@@JustinKPrim oh great! You could get it laser engraved with your logo as well
@@arthgrel ooh that’s a good idea
Nice work! Dressing the interior with mosaic tiles in mahogany colour would relieve you from moisture , grime , diamond slurry and doping wax, permanently.
Good idea, but I love the look of the wood.
For those curious, the software he's using to show the cut gem is called GemRay. It's companion faceting CAD program is called GemCAD. They're both free, as the creator retired and put an open software key on the site that anyone can use. I'm not sure if he used GemCAD to create the models, but the program itself is pretty good. Especially if you're just getting curious about creating your own facet pattern. Enjoy!
Ok...great video sir!
Ole chap is of Eastern European descent
Ore carts
i’m thinking about ordering a sterling st-08. how long does it take to get it after placing the order? my teacher said he waited like 6 months for his v5 but i’m getting so impatient to start cutting on my own that im prepared to buy 2nd hand. if i can get a brand new machine from sterling, fairly quickly tho; that would be awesome
I think it’s more like 1-2 months. Make sure you go to sterlinggemland.com because there is a scam site out there posing as sterling.
Credit where credit is due, he's good at SRBs, but I wonder how he would go on a rectangular cushion. Every cut I do is done to maximise yield so virtually never do an SRB. All take a lot more time, but then custom cuts make more money for unique pieces of jewellery.
Whenever we used to work together, he would bring in five pieces of Rough to show the students one day, tourmaline, spinel, sapphire, etc. The next day after an eight hour day of teaching, he would go home cut 5 10-carat stones overnight, sleep, and then come back and show us the next day. Dude is fast, great yield, nice polish and his meetpoints are impressive.
Longer video coming?
Yep
Love it!
Thanks justin for exposing the chronicles of Sri Lankan gem faceting, Im a big fan of yours❤❤
I have a $200 budget to get a tabletop grinder for stones and opals but I don't know which one to buy. There are lots of options on Amazon within budget but I'm nervous that I'll get the wrong one. Any suggestions?? Thank you!
Yes. I wrote an article for this question. Read this and keep saving your money: medium.com/justin-k-prim/i-want-to-buy-a-cheap-or-used-faceting-machine-9c613b3f1da9
That oil used does not have the same refractive index or you need pressure after vacuum. That's only a marginal improvement.
Wan you add a resist and grow shapes?
are there some good free rendering programs
No. I made these in GemCutStudio. It’s $99. It’s really good and worth it
We still have my Grandfather’s loupe. His was metal. Also have his jewelers scale.
Check for rare stamps…
Are those emerald are fake ones or just made like a lab created emerald gemstones?
Both! They are made in a lab, which makes them the fake ones. I think I've answered that correctly.
@@JustinKPrim yes it is a fake now i know its just a replica or a copy but its better than nothing or its better than a glass bottle fake ones
Hi, Justin : I love it. The conical shape is meant to serve the purpose of being able to be held hands free between the eyebrow bone and the cheek-bone keeping the perfect distance from the magnifying lence and the eye.
Wow. Ok I’ll have to try it like that.
Hi can i meet u so i can have a stone cut?please and thank u😅
Email me. Justin k prim at gmail
It is possible that the glass bits were practice for apprentices to facet.
I don’t think so. There are too many of them. Also I know there was a section of the Jura faceting industry that did synthetics and I think this would have gone to them.
The difference is a 3.000 dollar in equipment and high revenue is maintenance I suppose
I’m not sure what you mean
I don't think it matters. So many seem to be machinists who moved to faceting. Faceting to me is qualitative, not quantitative. What difference is there between 90 degrees and 89 degrees that anyone would really notice. Stop trying to calibrate your machines to .001 tolerance and just make nice looking gems!!!
Agreed
As a longtime academic I have never flipped faster from "it's my book" (uuugh) to "there are no diagrams in the other one, mine has diagrams" (OOOOOH!) xD
That is absolutely AMAZING!!!!!
I actually don't see any noticeable difference. The graphs are so close it's fair to say they are the same IMO.
Hey! I'm curious about what you think about cutting glass to start with? I have been doing some lampworking and have been considering investing in equipment to facet my glassworks. Do you have any experience cutting Soda-lime or Boro glasses?
Glass is great. Cheap, easy to polish. Just be careful on sawn edges as you can cut yourself easily.
I’m working on the solutions. My SOM should be delivered this week. I’ll mainly be addressing the dop indexing and divisions first.
I don't necessarily see the function of the Jambpeg as a defect, just a different method of operating, creating unique results.
Losing your mind is a stroke of genius😊
I can see the difference..but I think that 99,99% can't tell what's "wrong or right" When you look at what stones most of the gold/silversmiths buy for their creations 😵💫...A perfect cut stone will be a lot better even if the angles can be a bit off the perfect angles.
Great Video!
Thanks !
Jura? I enjoy a scotch whiskey by the same name.
Same name, different country. I haven’t tried Jura whiskey but I’d like to.
@@JustinKPrim it doesn't disappoint. Cheers!
So, in other words these "gemstones" were part of a costume jewelry trade, that used colored glass instead of real gemstones, which would have put their cost into a level that only more affluent people could afford. Cool, I have to say that the Bag of Sapphires you first opened made my heart up in my throat, because the color was fairly accurate, well, on some of them anyways. The machine is of much more interest for mee, so cool that you were able to buy it, now you need to return the entire setup back to working order! Back then, machines were meant and built to last generations, so they were built to last, to as high a level as they could achieve. Much like my Grand Mother's Singer Sewing machine that my Grand Father bought for her back before the great depression, and that machine was NOT new, it was second hand. so it was actually older than the 1920s, but for the life of me I cannot remember the actual date on the manufacturing stamp, which I looked at I know not how oft.
Yes. For the costume trade. And the machine is back in working condition and starting to be used already in my buddies office in London. I just bought myself a bench last weekend that I’m currently restoring. Video coming soon, once that project is finished.