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Improve your Gemcutting Speed by Internalizing the Design Geometry

Justin K Prim

3,162 views

In this video, I give you super secret techniques to improve your cutting times. Don't tell anyone I told you!

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12 Comments

@geoffgeoff143 1 year ago

Understanding the geometry of a design makes it so much easier.

@alexedwards4385 2 years ago

Nice presentation Justin! Thanks

@SiRaSiRLapidaryArt-qs6dv 2 years ago

Great thank you 🙏

@suyamamalalasekera8015 2 years ago

Very Informative, Thank you very much.

@ceciliabruck3570 8 months ago

I just want to say, "I like you."

@thigusssalgado3672 5 months ago

Hey justin , whats the name of your book and where can i buy it
Thanks!

@robertweymes6470 2 years ago

Justin, are there still copy's of your book available robert

@andybside 2 years ago

Very random question here, any thoughts on the Zhuofe FT-X1? Perhaps a future review???? 😁

@makumegane9628 1 year ago (edited)

Thanks for the video. did I understand correctly that for LW=1.2 oval main faces would be for example angle Mains “35 angle +-11” 85:96:11:24:37:48:59:72. Breaks angle “40” +- (3), and stars angle “20” -+ (6).

@arvidjohanstusvik8714 2 years ago

I haven't cut that many stones .. maybe 50-60 stones. I also have been hanging on to just a few designs. That brilliant cut is easy to "memorize" ..and I kept on cutting that design until I got it in my "muscle memory" .. Then I moved on to the Portuguese cut which also is an easy cut to memorize.
I have also cut some cushion designs, but never tried an oval design ...I don't think I'm skilled enough or have the right equipment for it ..I have a homemade machine with one of these cheap Chinese "mast devices" and even if I use a digital angle finder I dont think the machine is accurate enough.
..But I've been thinking ..would it be easier to start with the crown 🤔 .. because if I start with the pavilion I don't think I will be able to end up with a table that meets up with all the meetpoints.
But of course..I don't want to end up with a stone like one of those massprodused stones that has an okay crown but with a messed up pavilion with just some random inaccurate facets that looks like it's cut by a blind person 😅

Anyway .. thank you for this education video, I think I was following what you meant and I'm sure it will make more sense when I just start to cut an oval stone.

@fionahonohan2757 2 years ago

Great information...
But I still need to learn a lot... I can cut many designs with hand piece faceting machine but I can't the Cushion cut yet.... if you specify any book or course for that I wil be very thankful to you...
Here in Pakistan there is no such an institute or learning place to learn advance techniques....😢

@canadiangemstones7636 2 years ago

Or, if you want to cut faster, and hands free you could buy a Merlin Gem Bot Automatic Faceting Machine for $4k. I’d love to see you review this thing. Could be a game changer.