thank you for sharing this informational video.

thanks for posting this. people really need to stop being deceptive but we know this will never happen

this was a really helpful video - thank you guys - Natassa clearly knows what she's talking about!

@user-nj6gx6we1w

2 ай бұрын

yeah she really gets straight to the point. thats appreciated. when someone is straight to the point, its because the video isnt about themself. these videos are needed, because Opals got very popular after that Adam Sandler movie Uncut Gems came out.

Amazing video 👍👍 thanks guys

Hi guys ! I’m a very big fan of y’all’s work and the things you guys post on opal auctions ! Great video !

Very interesting info! THX!

Nice video, but I think the maths is wrong... she is dividing the weight of the stone in air by the weight of the stone in water alone, NOT by the weight of the stone in air MINUS the weight of the stone in water (as is shown in her example equation). In the case of the dyed Ethiopian stone, the equation should read: 19.45 carats/(19.45 carats - 11 carats) = a specific gravity of 2.3, not 1.7. But the video is very helpful -- thanks for posting!

@bonusben3486

3 жыл бұрын

what shes measuring is the buoyant force of the stone in water. the weight in water is ~ the weight in air minus the buoyant force in water

@amberty2002

3 жыл бұрын

Yeah, the math is wrong. It is 2.30, not 1.7

@amberty2002

3 жыл бұрын

5.8 /(5.8-2.9) = 2.0 and 19.45/(19.45-11) = 2.3

@fast03vette4me

3 жыл бұрын

@@amberty2002 Remember E=MC2

@YoureNotSoSmartBro

Жыл бұрын

this video is like 40 percent correct....

This video is very valuable 😮

Are natural, not dyed ethiopian opal also floureszent?

Great demonstration. Thank you.

Thanks for doing this. I don't know what my problem is with Opal, but I got it bad.

Thank you! Any advice on Indonesian opals would be much appreciated!!!

thank you for the video!

uv test is the best and easiest way i think.. thanks for the video 👍

Very much thank you for this video! I know it has been really requested on the opal reddit community.

Omg guys thank you for this I have been looking for this info for a while

So is it fully black inside? I mean if we cut that smoked black opal, is inside of that smoked black opal is also black or what?

Is the lady presenting a natural black or a dyed natural or a synthetic ? How can we test ?

Thank you!!!

Thank you universe Thank you universe Thank you universe

Hi, thank you for the video, do you know if a clarity enhanced opal by being heat treated changes the value of a stone and by what estimation?

@YoureNotSoSmartBro

Жыл бұрын

🤣🤣🤣🤣🤣🤣

@stevenstern2199

8 ай бұрын

Dyed smoked opal to me a fine jeweler is WORTHLESS.

Thanks from sri Lanka.

Great video! Thanks.

She shows an interest in music

Did you forget your own mathematical formula? Cos 5.8 /(5.8-2.9) = 2.0 and 19.45/(19.45-11) = 2.3

I have sone question sir if its okay with you

i still haven't found a dye for ethiopian that works. i've treated it with base to get sodium ions into the framework and then introduced different metal ions to some interesting effects. but no black. i tried india ink, they got wet but not black, those are some small pores! don't worry i would disclose to people that i did what i did.

Very informative !

This is very useful thanks

Some great information. Some of the Wello opal looks great, but I always stay away from the dyed ones. Will the Wello opal weigh in water be affected by the amount of water it contains already? Just the ethiopian opals absorb water easily.

Very good thanks

Your website and your opal info is by far the best to be found, thank you. So much BS out there

Do these test also apply to Opal already mounted in jewelry?

@YoureNotSoSmartBro

Жыл бұрын

🤣🤣🤣🤣🤣

Use a UV torch

I need

tank you!

Thanks so much madam

Немыслимая красота!!!! Строгий "чёрный" + озорной "радужный" в одном камне..... Несочетаемое сочетается, и, получается, ВЗРЫВ эмоций!!!!! Вряд ли, кого-то, этот камень, оставит равнодушным....

@ChitoGuzman-cc2nl

9 ай бұрын

Muy bonito opalo pero cuál es la opinión que tienen sobre el opalo mexicano el opalo de fuego

😱😱 Thank you very much for the explanation, so I can know the difference between real black opal and fake black opal.

Seems like a Propaganda for Australian Opal. Please see your calculation, The specific gravity of Ethiopian Opal is 2.3 based on your own formula.

@GeminiSound

2 жыл бұрын

In order to make a fair comparison they should have compared treated and untreated opals from the same area (compared Ethiopian with Ethiopian and Australian with Australian). This video gives the viewers the false impression that Ethiopian opals in are fake. They did not even mention once that there are natural black opals in Ethiopia. Quite disappointing for a video that is supposed to give information.

@GeminiSound

2 жыл бұрын

Yes, indeed, the calculation in the video was wrong!

@YoureNotSoSmartBro

Жыл бұрын

yeah pretty sketch

@YoureNotSoSmartBro

Жыл бұрын

@@GeminiSound yup

Mem how to inhance firing of opal .

Ok

There are no fake opals from Ethiopia.

ကျောက်ရောင်းသူများရောင်ကောင်ကြပါစေ

2

Most Ethiopian opal THAT IS black is dyed or smoked. Fact. And unless you have a Lab Cert by experts like Stone Lab Groups it is dyed. Caution opal auction buyers. I have sent many black Ethiopian opal sold as Not Dyed only science proving otherwise. I have been cutting....buying..,,making..,,selling fine jewelry since 1969

Speaking into a barrel is probably NOT the best venue for this explanation.. lapel mics are cheap..

You forgot the triplet opal..

I'm disappointed to see this vdo. Thou the information is good but seems like you are running your own business of Australian opals so for u all ethopian opals are fake.

Wello is awesome opal but fakes and to much water in some, spook me away.

Whatspp do

Guys I've a fake one 😔 27$ wasted.

To be honest all foreign buy from Ethiopia! But this video wrong impression about Ethiopian opals ! So do ur won business let us do our own business ! Our opals best opal on earth 🌍 u will see next 5for 6 years we control world market!

@NI-xm1mo

3 ай бұрын

chill