Search found 3995 matches
- Thu May 15, 2025 9:53 pm
- Forum: Gem Equipment
- Topic: GIA Gem Instruments Microscope - Model 792 Gem Scope II
- Replies: 9
- Views: 44451
Re: GIA Gem Instruments Microscope - Model 792 Gem Scope II
They will probably work, there is a lot of Meiji-compatible eyepieces out there. 20x is a bit much though, you might want to try 15x or see if you can get a 2x auxiliary lens to screw on to the bottom.
- Thu May 15, 2025 4:15 pm
- Forum: Questions for the Experts
- Topic: Kornerupin from Vietnam
- Replies: 2
- Views: 231
Re: Kornerupin from Vietnam
Very interesting! What kind are we talking, the purple and green ones everyone desperately wants?
It does seem like Luc Yen can produce almost anything.
It does seem like Luc Yen can produce almost anything.
- Tue Apr 29, 2025 12:59 am
- Forum: Lapidary Corner: Colored Stones
- Topic: Big Synthetic Alexandrite questions
- Replies: 2
- Views: 462
Re: Big Synthetic Alexandrite questions
Great get!
The included areas still cut nice stones.
I always like stones with the blue axis up personally.
The included areas still cut nice stones.
I always like stones with the blue axis up personally.
- Tue Mar 11, 2025 11:44 am
- Forum: Synthetics and Treatments
- Topic: Treatments of mineral specimens: is there an ethical gap?
- Replies: 3
- Views: 5343
Re: Treatments of mineral specimens: is there an ethical gap
Usually dye or filling leave surface indications. Which isn't to say it's impossible, just that it isn't trivial like most treatments are.
As to the ethics, of course such things need to be disclosed but it's typically done early in the supply chain by people who aren't so concerned about that. I do ...
As to the ethics, of course such things need to be disclosed but it's typically done early in the supply chain by people who aren't so concerned about that. I do ...
- Mon Mar 10, 2025 12:19 am
- Forum: TUCSON GEM SHOWS 2022-2025 SPECIAL SECTION
- Topic: Tucson 2025 dinner
- Replies: 29
- Views: 16359
Re: Tucson 2025 dinner
It would take more like 20 days to see all the shows. My dad managed it one year but it was a real challenge.
- Sun Mar 09, 2025 11:54 pm
- Forum: Synthetics and Treatments
- Topic: Treatments of mineral specimens: is there an ethical gap?
- Replies: 3
- Views: 5343
Re: Treatments of mineral specimens: is there an ethical gap
honestly the only color treatment that I think is probably common in mineral specimens is irradiation, and labs can't really detect that (so it's ubiquitous and mostly detectible contextually). Even gentle heat is going to be at least iffy for most specimens I would think. Obviously there are plenty ...
- Tue Feb 18, 2025 10:20 pm
- Forum: TUCSON GEM SHOWS 2022-2025 SPECIAL SECTION
- Topic: Tucson 2025 dinner
- Replies: 29
- Views: 16359
Re: Tucson 2025 dinner
Honestly me either, I am so worn out. But the amazing food in Tucson helps. Really looking forward to getting back to cutting and making videos.
- Mon Feb 17, 2025 4:38 pm
- Forum: TUCSON GEM SHOWS 2022-2025 SPECIAL SECTION
- Topic: Tucson 2025 dinner
- Replies: 29
- Views: 16359
Re: Tucson 2025 dinner
Just got packed up last night at 22nd street, flying out tomorrow.
We did a bit better than last year overall. There were a larger number of people looking to get into faceting or who had just started which is nice to see, though of course also a group of people our booth selects for.
There was a ...
We did a bit better than last year overall. There were a larger number of people looking to get into faceting or who had just started which is nice to see, though of course also a group of people our booth selects for.
There was a ...
- Mon Feb 10, 2025 4:50 pm
- Forum: Diamonds
- Topic: Synthetic diamonds price free falling in HK June show
- Replies: 9
- Views: 5683
Re: Synthetic diamonds price free falling in HK June show
There was a hybrid set recently announced using a mix of lab and natural, presumably to get around the lack of cape colors.
Personally I wonder if the ultra tight color grading is going to maintain relevance in the future. It seems like something that makes more sense in the context of a tightly ...
Personally I wonder if the ultra tight color grading is going to maintain relevance in the future. It seems like something that makes more sense in the context of a tightly ...
- Thu Feb 06, 2025 11:30 am
- Forum: TUCSON GEM SHOWS 2022-2025 SPECIAL SECTION
- Topic: Tucson 2025 dinner
- Replies: 29
- Views: 16359
Re: Tucson 2025 dinner
The pieces I saw at JOGS were kind of cool, included, deep color, 500-600/g.


Also I have reservations for 8 tonight at casa valencia, I'm looking forward to seeing as many of you as possible!


Also I have reservations for 8 tonight at casa valencia, I'm looking forward to seeing as many of you as possible!
- Sat Jan 25, 2025 1:00 pm
- Forum: Beginners Only!
- Topic: How to choose a camera for a trinocular gemology microscope?
- Replies: 1
- Views: 6082
Re: How to choose a camera for a trinocular gemology microsc
If you have a 3d printer you can remove the 23mm tube (at least on the sz7) and make an adapter to mount a micro 4/3 camera directly without any intermediate optics. That should give a pretty optimal image on this kind of stereo.
- Fri Jan 17, 2025 6:17 pm
- Forum: Gem Equipment
- Topic: Microscope for Gemology - Trinocular
- Replies: 6
- Views: 15908
Re: Microscope for Gemology - Trinocular
Seems very solid, except I don't think the Gemolite NXT is a good idea even if you can spend 7k. Way too much for a chinese unit.
- Fri Jan 10, 2025 6:55 pm
- Forum: TUCSON GEM SHOWS 2022-2025 SPECIAL SECTION
- Topic: Tucson 2025 dinner
- Replies: 29
- Views: 16359
Re: Tucson 2025 dinner
OK, let's go ahead and say the 6th at 7pm. Casa Valencia was a good venue last year I think--it has good Mexican food and seafood.
Sorry you won't be there Steve! It will definitely be a smaller group than sometimes.
Sorry you won't be there Steve! It will definitely be a smaller group than sometimes.
- Mon Dec 23, 2024 4:41 pm
- Forum: Colored Stones
- Topic: Orange Fire Opal Turning Misty – Seeking Advice
- Replies: 5
- Views: 1646
Re: Orange Fire Opal Turning Misty – Seeking Advice
The color tone and distribution looks suspicious in the cloudy photo imo. I would bet this is dyed ethiopian material.
- Mon Dec 02, 2024 2:32 pm
- Forum: TUCSON GEM SHOWS 2022-2025 SPECIAL SECTION
- Topic: Tucson 2025 dinner
- Replies: 29
- Views: 16359
Tucson 2025 dinner
Hi everyone! It's that time of year again.
Who will be at Tucson, and when? Barbra, is this the year of your long-awaited return?
Last year's dinner was at Casa Valencia and I think it went really well.
Who will be at Tucson, and when? Barbra, is this the year of your long-awaited return?
Last year's dinner was at Casa Valencia and I think it went really well.