Alexandrite
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- Опубликовано: 7 сен 2024
- The World's favourite colour change stone: What is it? What are the fakes? what do I need to know? All that and more with Gemology for Schmucks this week.
For those looking to see some pieces available to be acquired, head over to Nazo Anna's Channel using the link below and see what is on offer:
• Alexandrite
As always I love your videos, but showing the actual colour change would really improve the video. And even better would be to show the colour changes from examples of the Russian Alexandrite and the synthetic sapphire.
I appreciate the suggestion Don, and I definitely agree with you. The difficulty is in getting ahold of a Russian Alexandrite in order to do so. Maybe ill need to do a follow up video in the future if I can actually find one XD. Take care and be well~
Definitely love Alexandrite it was discovered in my birth year in Brazil and its my brth stone.
Perhaps it was fate.
I just discovered your channel, I may be too broke for gems and jewelry but one thing is for sure: I love your energy and the thoroughness of your content; I'm hooked, what can I say!
I'm glad we've got another convert ;) And while many things in the world are unsure, one thing IS sure: when you have a clear goal to achieve what you desire, you find hidden strength and cunning to acquire it... take that for whatever its worth :D
Looking good with that Beard to buddy 😉
Very detailed and clear knowledge sharing video, Thank you.
I'm glad to share ~ Cheers.
I. Love. It💜
Im glad you do~ lovely stuff
appreciate your videos!
I'm glad you enjoy them ^_^
Alexandrite is a beautiful stone. I have a small piece from Brazil which has amazing colour changes & a larger piece from The Russian federation, but it’s rough and uncut, it does come with a mining certificate. My Grandfather was given it in East Germany before the Wall came down. It’s slightly lighter than the Brazilian cut piece though but has nice colour change.
(drooling commences) I'd be lying if I said I wasn't jealous.
@@GemologyforSchmucks - I really like the uncut stones to be honest, they have lots of character. I’ve got brown Tanzanite, Peridot (my birthstone) Blue Sapphire, Emerald (lots of inclusion) & a rough Ruby. Oh yea and the Alexandrite, that’s the smallest one. I guess I just collect stones, they are alongside my Meteorite collection.
@@rogerhargreaves2272 especially if they have a well defined crystal shape, I totally agree with you. I managed to get a red twinned spinel crystal. Both are the octahedral shape and one is smaller and just off the hip like some sort of parent with a child #loveit
@@GemologyforSchmucks - Brilliant. Mine look as if they have just come out of the Earth though, well cut out of the Earth. They still look beautiful. The Peridot is 201.7 carats and has a few inclusions. The Tanzanite is 478.75 carats. It’s still brown as it hasn’t been heated. Stay safe Peter, always looking forward to your next video.
Yes sir. I got alexandrite cat eye
I noticed that the lab growns are expensive and im like nooo not for a man made.
Indeed~ most available alexandrite simulants these days are synthetic colour change corundum (ruby-sapphire) rather than true synthetic colour change chrysoberyl (synth alexandrite). They can make it... but it's expensive, so it seems most have given up on that in exchange for a better performing, cheaper alternative. You should hear some of the prices for natural~~~ #lawdyloo
Awesome video :)
Thx Dave~
Hola buenas noches me encanta su canal muy interesante quisiera de ser posible cómo saber cuánto mide en milímetros un quilate de alejandita gracias y muchos éxitos
Guess im not owning one of these lol. Was on my list. Maybe later if i can get rich real quick
Does inclusions of alexandrite contain rutile?
Hey Peter I was wondering if you know the synthetic type "pulled" process alexsandrite, if it shows 3 colours through the Dichroscope like the natural alexsandrite?
Hi Oakley, most imitation alexandrite is actually synthetic colour change corundum. Its much less expensive to produce evidently, so it has effectively replaced true synthetic colour change chrysoberyl (alexandrite). If you doooo manage to find a piece of synthetic alexandrite, it will have the same properties as natural alexandrite, but whether or not it will clearly show trichroism depends on the individual piece.
@@GemologyforSchmucks
Hey Peter thanks for the fast reply I love this about you how your quick with the replies, 👍 yeah I know there is alot of the synthetic corundum acting as alexsandrite On the market but I have brought a pulled synthetic one apparently so I'm going to test it with the Dichroscope and ill let you know if I have the real deal 😃 keep your videos running as i love watching them 😊👍👍
@@oakleymills4847 let me know what you find~ otherwise, if you haven't got a polariscope yet, you should consider it. If you can master using the konoscope, that can give you clearer diagnostic proof that the stone is or isnt biaxial (which is the optic character of chrysoberyl and NOT sapphire) some stones are biaxial but wont show clear enough trichroism even with a dichroscope for you to trust it. Good luck and have fun~
@@GemologyforSchmucks ok thanks for the information and ill let you know how I go 👍
How much price par caret.
Hey I don't know if you remember me from a few years back. My name is Ryan I believe I found an alexandrite. Is the anyway I could email you a few pictures of it. I'm trying to figure out if it's lab or natural untreated. I don't know much about alexandrite. Please help
HI Ryan. Natural vs synthetic alexandrite determination is something that would need to be done in person with magnification. There isn't a way to do it via pictures. The inclusion scenes are what we rely on to make the distinction, and without inclusions the stone would need to be sent for advanced testing at a suitably equipped gemological lab.
In sri lanka we have best quality Alexandrite
I wonder if the Russians or Brazilians would agree. I myself am happy to have a world with more beautiful gemstones from various places.
Any way to really tell apart a synthetic alexandrite from sapphire? The vanadium-laced kind is pretty easy to see from the colors, but you seem to suggest that there are also other simulants made of sapphire with a much stronger color change
Inclusion scenes are critical to distinguish natural and synthetic growth stones of most types. Synthetic/Natural alexandrite is the same.
@@GemologyforSchmucks Thank you for the reply, but I think you misunderstood my question. I was asking about the visual differences between synthetic alexandrite and a simulant (such as synthetic sapphire)
@@cretium805 often there is no reliable visual difference between the two, especially without magnification.
@@GemologyforSchmucks Yeah, I just did some digging. The refraction, double refraction, and dispersion are pretty much identical! Very slightly stronger for sapphire. Both have no cleavage, but sapphire is a bit harder, so I'd actually prefer the 'simulant' before price is even considered!
I do also have a chrysoberyl alexandrite of one carat certified by IGI LAB.
If you can get an origin report from this and a few other major labs stating that it is a Russian alexandrite, then you'd have a very exciting stone to show around. Other origins such as Brazil, Sri Lanka, East Africa etc. don't tend to command as high of prices for a one carat stone. Either way - Beauty is beauty. Congrats.
@@GemologyforSchmucks Thank you so much for your kind advise and reply. Although I know it is not the russian but from Sri Lanka origin. That's why I got the same at 1000 US $.
Kind regards.,🙏
can u plz do videos on how to identify specific gems from others.for ex : sapphire from a spinal
An interesting thought for the future, thanks for the idea.
Hello! My question is if I have a peace the jewerly stores have tested with their pens and keep telling me they suspect to think it is alexandrite but are getting inaccurate readings all over the stone but their reader is pulling alexandrite directly off how could I possibly get it tested? I am checking for gemoligist testing in my area there is nothing. They told me pay them for an appraisal which I'm uncomfortable to do when they can't tell me what they can't tell me they said they would just have to send it off to someome else to have it properly determined who had the correct equipment and materials. Idk how I feel about that. There is 19 diamonds in it. Checked, all real. Stamped gold. And I called the jewelry they used to be a smaller shop til it was bought out in the earlier 2000s but this guy they had me talk too said they have never worked with synthetic or lab grown gemstones in their peaces. Whatever you have would be real he told me. And this store specialized in luxury jewelry for clients, custom peaces. Mostly precious stones unless otherwise requested and they have Mines and such all over the world. Only designers hand design each peace not 2 are alike is why I cannot find another like it online, I told him I keep Reverse image searching it to find something similar alike etc but he said coming from us you won't. So I'm not sure. Cause the pens read alexandrite off the stone the diamonds all real stamped gold and what the guy from the store told me. The lab alexandrite in the one shop looked completely different then what I have. It's so hard to capture an image of it fully green blue but half ish I can get one. It's completely different then what our eyes are seeing and the cameras capturing idk it's weird.
Hi Cassie - definitely find an accredited gemologist who can use respectable testing methods. A pen type tester is a toy when it comes to coloured stones. If you're in the US, most of the available gemologists are also appraisers for insurance purposes. Ask them what tests they plan to use to identify your stones. If they talk about refractive index (RI) and the other tests I talk about in my videos, that is a good sign. If they plan to whip out a pen type tester.... I've already expressed my view above.
I have alexandrite 7carats i want to seeit
Is there anyway we can talk other then RUclips?
yes ~ you're welcome to send me an email at thegemshepherd@gmail.com
I sent you some pictures to check out if you don’t mind to your Gmail just to see what you think
عندي عديد من احجار الكسندريت خام واريد تعرف إليها كيف أتصل بك
I bought synthetic alexandrite from a reputable dealer, changes from pale greenish blue to purple. How can I test if it’s chrysoberyl or not?
Hi Ingeborg~ there are a few different tests that you can do that will help narrow it down or eliminate the other "most likely alternatives." You can test using the polariscope (i have a tutorial) and that can eliminate synthetic colour change sapphire. The most definitive test will be to check the refractive index (i have a tutorial posted on this too), if you have access to a refractometer and RI liquid. With just your eyes you wont be able to tell in this case, unfortunately.
Can rutile be inclusion of alexandrite ?
Excellent question - you'd want to speak with someone specializing in alexandrite to clarify. There are several geographic origins worldwide that produce alexandrite and its reasonable to believe that their inclusion scenes may be quite different.
I am new to your channel Peter, love your videos on gems, thank you! (I have hit the Subscribe button right away ☺️). Any tips on identifying the origin of alexandrite? I have a 3ct certified, very certain is not from Russia. But would be nice to figure out the origin.
Hi Julia, and welcome~~~
Alexandrite origin determination is mostly down to chemical analysis to my understanding, so you'll want to get your stone into one of the major research labs that have those advanced machines. This particular thing is beyond the equipment and knowhow of most gemologists. Especially with a 3ct piece, having an origin report could be a useful selling tool if you were looking to liquidate your investment.
@@GemologyforSchmucks oh my, I just finished watching another one of your video and you have already replied! Thank you so much! Yeah I picked up the 3ct from an auction, will probably contribute to my retirement funds 😅. Again thank you, I will seek out a well established gem lab as you have suggested!
مرحبا، لدي جوهرة الكسندرايت طبيعية ورثتها من جدتي ،تزن 22 قيراط ، كانت تخبئها مع بعض الجواهر الاخرى ،اريد طريقة للتواصل معك رجاءا لاريك اياها وشكرا
Tell me price plz
If you're interested in these pieces of alexandrite, you're welcome to contact us at nazoannagems@gmail.com and let me know which pieces specifically. I'd be happy to follow up with you when I get into the office this next week.
Are you base in U.K. or USA?
Neither. I am based in Bangkok.
Hi Peter iam one of your fan peter what I ask you when did you talk about rough gemestone always I see you talk about cut gemestone
I deal mostly with cut gems, and I believe that's what most people need to hear about at the beginning. Thx for the comment~
Thanks peter
Hi Peter people like also want to hears uncut since Iam number one your fan
I never miss any episode of your show
I learn lot of gemestone for you thanks Peter
Hey man i think i do have alexandrite can u actually help me out?
If you're dealing in alexandrite, you'll want a 3rd party report from a respected lab. The chances of someone buying it without are very low otherwise.
Don't you think someone out there has tons of it?
Healthy suspicion is a good thing, but i'll say no, i dont believe someone out there has tons of high quality Alexandrite. Diamonds had this situation, but it took the syndicate control of DeBeers to control the supply and keep the supply low. Even in gem centers like we have here in Bangkok, the amount of quality alexandrite in any substantial size is really low, whereas you find piles and piles of other types of stones that are popular and costly like tanzanite. If people think they can get money, they're going to try. You SEE lots of diamonds and sapphires and tanzanite, even though they're not cheap.
Long story short: the supply is too difficult to control, geologically this material doesn't form as plentifully, and the supply is spread out in far flung places, so it's beyond the capacity of one coordinated group to stash what comes out.
Ok, so, i hate being this guy. display shows up, has a ineresting stone pair, didnt belong size wise. refractrometor, 1.748 ish and a .01ish BR. for kicks i took it into the bathroom, our only incandescent light in the room, and sure enough. now, these are small, half carat stones. one of them has a crack, and both what small crystal grown looking inclusions. but im paranoid enen though they dont look like my lab grown ones. which i am about to test on my refract too. My question is, how do i know its natrual? looing at it with the 10x, the 60x, and even the 120x I am getting the feeling, but gambling 70$ on GIA certs feels..... out of reach. woulld cost more then i paid for the stones technically. is there something specific in the inclusions that tells you its Synthetic or natrual?
Hi there ~ to have more confidence on your call, you'll want to reference photomicrographs of alexandrite/ chrysoberyl to get comfortable with the natural and synthetic inclusion scenes that are available in that material. Most of the synthetic material that exists in chrysoberyl is produced using a melt process, so it should have either curved striae like synthetic sapphire and spinel, and or also gas bubbles. That said, most of the alexandrite simulants on the market are synthetic colour change sapphire.
Cheers~
@@GemologyforSchmucks hey thank you. My best magnification sadly is only 120x. But I'm not seeing curving, I found either a bubble or a crystal growth in one, it also has cracking. Again small. I have larger synthetic color change chrysoberyl and it turns very red when I use the led flashlight on it. Idk, I might risk the 70 lab fee with GIA to see what is going on. Feels like gambling. Thanks for the reference material. I need a better scope.
You are a gem buyer sir
🤔
A faka menos é im suportável sua vos e falaremos apresenta mas do que fala
Thanks for the comment. Unfortunately I do not speak (Portuguese?) and google is unable to sufficiently translate your words. Hope you are having a great holiday season.
Thanks for the video, Do you guys make overseas business deals ?
I have a good looking big size piece of chrysoberyl NATURAL gemstone, density is 3.743...if you are curious to look at !!
Thanks for the opportunity to comment !
Hi ~ established relationships are important for most dealers. I know some that will buy overseas, but its usually by having a local broker to go view the stones for them to confirm what the stone is like compared to video (a service I provide.)
first ayyyyyyyyyyy
Yeeeeeehaw!
Hello sir , I want to buy Alexandrite can you help me find sellers who sells authentic stones and their contact information
Please help
International seller preferred
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