Glass filled, heat treated Rubies at The Bangkok Gem show

As a Professor of Materials Science at The University of Indonesia I teach theory of crystals defect so that I can says that almost 99.999% of all Rubies in the market today are heat treated up their near melting point of near 2000C and glass filled to make it perfectly bonded all of its lattice crystal structures alligned into [111] closed packed direction which is the most densely packed structure. If you buy naturally occurence Ruby almost all have imperfections interm of lattice defects like what is so called stacking fault and dislocations lattice structures. By heating to its nearly melting temperature the lattice structure will re-oriented and realligned as such and would give beautifull appearances of shiny light reflection because all fine atomically cracks that almost all occured naturally being all bonded by heat and its treatment filler. Thats why its look more smoothly and beautifully light reflection than a raw discoverd ruby. Be aware when looking all beautiful looking ruby its absolutely 100% heat treated.

I love that he's holding their product right in front of them and shit-talking the hell out of it to the camera.

This video is just perfect. People, just remember that Ruby is one of the rarest crystal in the world, so do not expect a miracle. Big stones, nice color, cheap price = fake. Today many people are paying big price to buy a very common material.... Glass melted with corundum... Frankely, I would like better buy a synthetic that have a better durability than those pieces. Congratulation for you video.

Thank you for taking the time and effort to make this video.

Wow! just learned about the fillers in rubies...and how disappointing...that they fill all the rubies...thanks for the posting of the video, love it! Learning how to buy gems...

OMG! I am from Burma, know nothing about RUBY. But I did know from Mokok is famous for Ruby. They are beautiful !!! Thanks for sharing

Thank you for your great knowledge

Love it, a knowledgeable man. Nice education...

Thank you so much for the video ! very helpful !

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I've only just recently began creating synthetic corundum (ruby & sapphire) via the Verniuel process. The most interesting thing I've observed is when the boule has just formed it displays the same patterns observed in natural corundum. I've been trying to determine if the crystal structures become more defined through prolonged heat treatment, but I'm really surprised how early on during formation of the boule, that the surface crystal patterns are so well defined.

Plenty of untreated, natural, top class sapphires in Australia. Most of the sapphires sold in Thailand came from Australia, regardless of where they claim they came from. Explore the Queensland and New England gemfields to get a bargain.

i love love love Ruby! j'adore!

Good ruby is very rare, so treatments to make bad ruby become good looking are common. But, the seller must be honest to tell the treatment to the customer! Very nice video Nick Hudgson, thanks also to Karen Kean for uploading the video

Fascinating because I was curious about how classification of the glass slumped rubies were to be~glass is technically quartz? Very good. I heard years ago~maybe 2007? 2009? To not think any rubies on the market, were true rubies-meaning I heated/un slumped *(I call it slumping but sure heat healed | flux healed too, right?). I do love the slumped stones though to be clear. I make jewelry and I use various stones I know are heat/slump treated and work perfectly fine for my 65 dollar earrings.these stones are all beautiful and fun-I think that needs to be part of the reframe by the way-they are fun, sort of low cost and make pretty pieces of wearable fun jewelry, artists like myself can design! Excellent video! Thank you!

Wow I did not know that some procedures completely melt the crystal structure,,, thank you

Very informative thank you! :)

I notice you are wearing a three metal bangle. If you don't mind my asking, where did you source it from?

What a pity that really few people have mercy of others enough to tell about the way to recognize the glass treatment. I wish there were more people with generosity enough to show in internet about the way to recognize under microscope those kinds of scams.

Beautiful omg