How to Classify a Lead Glass-Filled Ruby by GIA

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GIA (Gemological Institute of America)

10 жыл бұрын

gia.edu/gem-encyclopedia
How to Classify a Lead Glass-Filled Ruby by GIA. How does a synthetic ruby compare to a natural ruby? Some gemstones have synthetic counterparts with essentially the same chemical, physical and optical properties, but are grown by man in a laboratory. Watch this video to learn how to classify, identify and care for lead glass-filled rubies. One of the more recent and controversial developments in the gem market is filling ruby gems with lead glass. It is a process of taking very low-quality ruby that is opaque and then filling it with lead glass, which changes its appearance to transparent and makes it easier to cut. There may be large gas bubbles inside the stone, or even flat bubbles that show the ruby has been modified. In its mission to protect the public trust, GIA provides an in-depth assessment of the implications a practice like this has for gem buyers.
Learn more about ruby with GIA's gem encyclopedia: www.gia.edu/ruby
• Ruby Quality Factors: www.gia.edu/ruby-quality-factor
• Ruby Description: www.gia.edu/ruby-description
• Ruby Buyer’s Guide: www.gia.edu/ruby#buyers-guide
• Ruby History and Lore: www.gia.edu/ruby-history-lore
• Ruby Care and Cleaning Guide: www.gia.edu/ruby-care-cleaning
The Official GIA KZfaq Channel is also a great resource for ruby knowledge
• Comparing a Transparent Faceted Ruby to a Star Ruby: • Comparing a Transparen...
• Sapphire and Ruby Mine in Pailin, Cambodia: • Sapphire and Ruby Mine...
• What Attracts us to Ruby | Properties: • What Attracts Us to Ru...
• What Attracts us to Ruby | History:
• • What Attracts Us to Ru...
• Ruby River Mining in Pailin, Cambodia: • River Mining in Pailin...
GIA exists to connect people to the understanding of gems. Our videos provide more information on diamonds, gems, and other related topics
• How to Choose a Diamond | GIA Diamond Grading Guide: • How to Choose a Diamon...
• How to Read a GIA Grading Report: • How to Read a GIA Grad...
• Mining for Emerald in Brazil: • Mining for Emeralds in...
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Пікірлер: 56

@phoenixadams9962 2 ай бұрын

I bought one for my gem library, so i could learn to recognize it. Surprised by how pretty a stone it is. A consumer would never know its been altered unless disclosed. Thanks GIA for the information.

@cindychen8421 3 жыл бұрын

As long as there are natural Ruby in it, doesn't matter how low quality or the color looks, it will benefit people, if you can spend less money have natural Ruby or sapphire treated for a better looks with much much less money, the buyer is happy, only those sellers who can not make any money by selling high price will worried and come out saying glass filled stones not benefit you, it does, it does! I will buy more and more those beautiful glass filled natural stones, it make me so happy. I absolutely love them because I get good vibrations from them. Don't forget glass made of sand also a kind of natural stone, it complement each other, that's why you feel so good when you receive you expensive looking jewelry with so little money, I am grateful for who ever invented this method.

@mariyavladimirova8829 2 жыл бұрын

I agree, I have few diamond rings and o always wanted a ruby as its my birth stone . The money I paid I can easily buy 10 and have every few years beautiful ring . Even diamond that is harder can scratch and chip , so if you want to pay top $ got untreated but no point to say that you shouldn't buy lower quality if you pay according price . Comparing to diamonds that are overpriced this rubies are good way to have something to enjoy and not get broke :)

@Reincarnation111 Ай бұрын

I know what you mean. If aesthetics are the reason, it matters not if they're filled. But they don't last so it may be a waste to use them with natural stones in a gold setting. You can consider them as costume jewelry though what they use in costume j. will probably last longer!

@peterelliott3713 Ай бұрын

Many thanks GIA team , straightforward advice , simply explained.

@FreedomsLife1776 Жыл бұрын

Very fascinating. Thank you for the video.

@user-vo5rw8pg5r Жыл бұрын

Thanks for sharing this video.

@napolinapoli2156 5 жыл бұрын

Hello Thank you for this video :) unfortunately jewelry shop sell such "gems" as treated rubies, which in fact should not be called like this. I would be grateful if you could post videos about other gemstones pointing out to differences between only heated gems and enhanced ones in artificial way. Thank you in advance :)

@natesmom2244 3 жыл бұрын

I have a mahaleo ruby ring i just bought that has a rainbow inclusion in it. My question is do you think the rainbow was already there before being glass filled? It's pretty cool to look at either way.

@ArunSharma-sq8hf 5 жыл бұрын

Sir can you please tell me what is the difference between glass-filled Ruby and Ruby heated with Borax with significant residues.

@venkataraokurumoju595 4 ай бұрын

Good information 👍 sir

@chriswells4028 4 жыл бұрын

This is good to know I recently got into the gem business of fulfilling a childhood dream.im looking for a place I can send some stones in the rough that are gem quality

@nusratperween7415 3 жыл бұрын

What is the process to sell these stones

@trevorbeltran9697 2 жыл бұрын

Hi I have a baguette cut ruby ring with 20 baguette shaped rubies . Is it possible it could be glass filled ?

@ArunSharma-sq8hf 5 жыл бұрын

Is Ruby heated with significant Borax is stable?

@di3inglife 10 күн бұрын

what this tweezer called? i need one

@BrianStocking 6 жыл бұрын

Is the process used to fill a ruby with this lead-glass done to the rough or to the finished cut?

@GemologicalInstituteofAmerica 6 жыл бұрын

The starting material is rough corundum with extensive fractures, twinning or voids which glass is induced to enter. The glass or resin enters open fractures in the original rough material causing the walls of the fractures to adhere and the fractures to become less visible. GIA considers this type of gemstone to be a manufactured product.

@Yameen-fk8tn 4 жыл бұрын

@@GemologicalInstituteofAmerica can you help me plzzz

@user-cd9kb1wt7p 7 ай бұрын

Заполнение стеклом так и называется "заполнение стеклом", а диффузия - это окрашивание внедрением атомов другого вещества. По законодательству такой камень является драгоценным. Маркируются буквами Д и С. Д-диффузия, С-стекло.

@huangxizhang9897 Жыл бұрын

Now, I completely understood why the jeweler removed the stone on my moms ring before cleaning and resizing done, he mentioned about it being treated or filled with. It was a gift, a 5carats Burmese ruby my sister claimed. I'm not sure how she obtained it but appears to be a scammed.

@melissasnow416 5 ай бұрын

That's really a shame that your sister was scammed. At least the jeweler recognized it before he ruined the stone by mistake.

@ConcreteBombDeep 7 ай бұрын

I'm confused. A piece of cut lead glass isn't going to fall apart when wearing it so why do glass filled rubies? Are they really that fragile or do people just hate on them for being fake?

@stallion738 Жыл бұрын

how about my granfather's ruby ring is it a real ruby stone?

@ahmedelmeligi5354 Жыл бұрын

I have a ruby stone and i want to test its quality and issue a certificate, how to do?

@GemologicalInstituteofAmerica Жыл бұрын

Hello, if you would like to submit your material for a certificate, please contact our laboratory at labservice@gia.edu or visit www.gia.edu/report-check-landing to learn how to submit a gem for grading. Thank you.

@aung3627 Жыл бұрын

ကျေးဇူးပဲ ဂျီအိုင်အေသင်၏ဗဟုသုတများမျဝေလိုက်သည်

@suzanasouvla1440 8 жыл бұрын

GORGEOUS AND PERFECT.

@margui6224 8 жыл бұрын

You are wrong. Glass filled rubies is more glass than ruby, not beautiful at all. They are worthless. I'm avoid to spend my money in such things.

@user-wh2zb5cm1f 7 жыл бұрын

who gives a fuck all of these stones are mined by African kids to let Jews make billions

@robertbrandywine 6 жыл бұрын

Rubies and emeralds come from places other than Africa.

@biplav32 4 жыл бұрын

@@user-wh2zb5cm1f Mostly in burma.

@singingcowboy674 4 жыл бұрын

@@margui6224 are you willing to pay hundreds even much less thousands for raw, uncut Ruby? Raw uncut Ruby is 💯 real. And you guys won't pay .50 a c cause they ain't pretty. Ruby CRUMBLES when being worked with. No treatment, no ring at ALL.

@user-fj7qq9zq3i 4 жыл бұрын

Hello I have a real ruby stons (as i think) they are old.. How can l test them to know if they are real?and where if u know any lab at Middle East?

@navilkhan5715 2 жыл бұрын

Hello sir plz I bay ruby

@Jackaroo. 2 жыл бұрын

Macy's was selling lead-glass filled rubies as genuine un-treated rubies. Never buy from Macy's.

@georgeagyir7134 6 жыл бұрын

can tell if this rock is a gemstone

@lincolnthinking 7 жыл бұрын

video is saying that lead glass filled product has short life span as imitating true unfilled ruby

@ahmedabdelrazek2261 4 жыл бұрын

I have a large transparent ruby weighing 1095 carats do you have a WhatsApp number or a special page to appear to you? I want to sell it. It's transparent red.

@singingcowboy674 4 жыл бұрын

I got a Ruby from a mine in N Georgia from a Franklin NC mine. I opted to have it cut. The young lady, a recent graduate of gem cutting school told me that rubies are very porous and she uses glass to fill the pores to make it workable I guess? I got my piece back and I love it but I wanted to resell it and I'm hearing like a Ruby gf is LITERALLY WORTHLESS. HAS ZERO VALUE WHATSOEVER. Would I be better off or get a higher price to just sell the RAW RUBIES UNCUT? I mean if something renders a precious gem WORTHLESS, that's disconcerting. I paid a couple hundred dollars to have it cut. It's beautiful. To the naked eye it looks natural or like a cut natural Ruby would be. It's brought me a lot of confusion. They say Ruby crumbles. How is it even worked to cut?

@michaelcoan3254 3 жыл бұрын

The problem is when the stone is cleaned, possibly with a pickling solution, and that is where the stone may "crumble" or the glass may dissolve. It is a treatment produces excellent visual effects but unfortunately renders the material "highly unsaleable" when disclosed, unless it is used as a "teach" stone. Ruby by itself does not crumble, but if the rought material has a lot of "missing" areas, it may fall apart; if there was a visible lack of support, the material would probably not have survived cutting. Gem, (or what might be termed "facet" or even, "cabochon") grade rough would not have fallen apart.

@singingcowboy674 3 жыл бұрын

@@michaelcoan3254 would it still have had pores though if it was cuttable? I asked her about it when I went back and she said that while pickling might be a problem, a polishing cloth would not harm the stone at all. I then asked her if she could put a number on it what percentage of the total stone was glass. She said the stone we decided on was very good and if she had to put a number on it she'd say probably 10% of the stones totality would be glass.

@michaelcoan3254 3 жыл бұрын

@@singingcowboy674 She is correct; a dry cloth, or even a damp one would not harm the stone. A cotton swab with a bit of rubbing alkahol would be fine if it greasy (but that is kind of unlikely unless it gets exposed to hand, face or body lotion). And 10% is kind ...generally they are much higher, especially in the ones out of Aftica. You might want to check the surface of the stone, and see if there are any discernible "scratches" which are probably fissure/fractures that may be hitting the surface - it the crown is relatively clean, and they are primarily on the pavilion (bottom) which is more protected, that would be good to know. And honestly, if the stone is atrractive, then wear it (preferably as a pendant) - as long as you disclose, someone may just like it enough to buy and wear it...

@singingcowboy674 3 жыл бұрын

@@michaelcoan3254 I didn't see anything on the surface of the stone at all. Very clean. I just noticed a bubble when holding it above my phone's flashlight. It isn't an African stone though. It's a NC, USA stone. She did 4 in total 4 me. The Ruby, an emerald, a citrine and a purple amethyst. All were exquisitely cut. For such a young lady she is incredibly talented. She treats all of her rubies but one called into the shop when I was there gold panning and said a 2 carrot appraised out at $4000.

@michaelcoan3254 3 жыл бұрын

@@singingcowboy674 A good gem cutter is great to know, especially locally here in the US...it is becoming more popular with the under 35 crowd I see from my vantage point as well. I hope she takes really good images of her work...her "babies" will not come back when they find homes. The air bubble is proof positive of glass filling, but as I mentioned, if you disclose the information, it should find a home as well, just not as much as an un-glass filled would be. You don't have to negate the stone; just emphasize its looks, and take a bit ot extra care with them.

@maximhollandnederlandthene7640 Жыл бұрын

Composite stones are bad for the jewellery business.

@paulinemegson8519 Жыл бұрын

Ummm let’s be honest, ANY gemstone should be kept out of solvents and gemstone jewellery should be removed before using cleaners etc. Also you say that “glass filled rubies are taking material that wouldn’t ever be used and making it usable in jewellery” like it’s a bad thing, when frankly the only people it’s bad for are you resellers of stones. And they ARE rubies…..you can carp about it all you like and be as precious(see what I did there? Lol) as you want but the fact is that the crystalline matrix that the glass is fused with IS ruby, ergo, it’s a ruby….a heavily treated ruby, but a ruby nonetheless, and NOT a lab grown stone, so not “manufactured”.I know it hurts your elitist little souls to see plebs wearing gemstones but tbh many glass filled stones are lovely and are the only way most people will ever own a ruby. The only issue I see with glass filled stones is trying to pass them as natural stones(rare enough anyway since most rubies are heat treated) with a price tag to match.