Lowest BrillianceScope Results Ever

[Rhino]

We scanned this one recently and thought it quite comical. In spot lighting environements I''d say the reading is quite accurate.

 

[valeria101]

WTH? Black diamond !? Black hole !!?



... the title of the thread got me guessing 'rose cut'.

Ever tried one on the BScope?

 

[Lorelei]

 

[RockDoc]

Looks like one of those fine black diamonds that are sold on Ebay!

Frozen petrified dinosaur spit?

Rockdoc

 

[Rhino]

Date: 4/15/2006 2:40:07 PM
Author: valeria101



WTH? Black diamond !? Black hole !!?



... the title of the thread got me guessing ''rose cut''.

Ever tried one on the BScope?

Unfortunately no Val. Everytime we''ve ran across rose cuts they were always already set into an antique or period piece. Haha... black hole! Black diamond yes.

 

[Rhino]

Date: 4/15/2006 2:44:16 PM
Author: Lorelei

LMAO! When we put this on the Bscope we all looked at each other like this then started cracking up.

 

[Rhino]

Date: 4/15/2006 2:49:27 PM
Author: RockDoc
Looks like one of those fine black diamonds that are sold on Ebay!

Frozen petrified dinosaur spit?

Rockdoc

Hey Rockhound,

I think the petrified dinosaur spit would bring back a better return!

 

[sunkist]

Haha! ohhhh wow

Do you have a photo of the stone? Could you post it?

 

[princessv]

Umm..no thank you!

Can a RB diamond score the same thing if it was something like industrial grade spit? Just curious

 

[Kaleigh]

Date: 4/15/2006 2:59:50 PM
Author: Princess V
Umm..no thank you!

Can a RB diamond score the same thing if it was something like industrial grade spit? Just curious

I''ll pass too, hehe.

 

[ecf8503]

Too funny!

 

[MissAva]

 

[Dancing Fire]

who would waste their time to cut that "what ever" ?

rhino

can you please do a sarin or helium scan on that rock?

 

[MissAva]

The label reads black diamond...is it a real diamond or perhaps a CZ of some sort?

 

[kenny]

Rhino, You just never listen to me.
I told you some of those new GIA EX steep deeps wouldn't perform well.

 

[valeria101]

Wait a minute... if black diamond, those guys are not even transparent ! What ''brilliance'' to expect ?

Cute ''peg the scale'' case though

 

[mdx]

Interesting observation Ana, If reflection is one component of brilliance then a highly polished reflective surface should give some result.

Perhaps this black diamond is below the bottom limited. One wonders what a small mirror would record.

Johan

 

[Rhino]

Date: 4/15/2006 2:58:16 PM
Author: sunkist
Haha! ohhhh wow

Do you have a photo of the stone? Could you post it?

I would for ya sunkist but the stone was already sent back.

Sorry.

 

[Rhino]

Date: 4/15/2006 2:59:50 PM
Author: Princess V
Umm..no thank you!

Can a RB diamond score the same thing if it was something like industrial grade spit? Just curious

Good question Princess V. You know what ... I have a calibration stone that came with the Helium scanner that would qualify as industrial grade spit.

When I get back up to the lab on Tuesday I''ll run it and post the results. Should be interesting.

 

[Rhino]

Date: 4/15/2006 3:33:14 PM
Author: Dancing Fire

who would waste their time to cut that ''what ever'' ?

rhino

can you please do a sarin or helium scan on that rock?

Wazzup DF.

Good to cya around man. I''ll run a Helium on the frozen spit I scan in on Tuesday.

I wonder if we can post .pdf''s here?

 

[Rhino]

Date: 4/15/2006 3:52:15 PM
Author: Matatora
The label reads black diamond...is it a real diamond or perhaps a CZ of some sort?

Actual diamond Mata. We are currently making a disc shaped pendant for a client and he is alternating small black diamonds with white diamonds in the piece. I saw my sis helping him with this recently. They aren''t very high in demand but they are cheap and available!

 

[Rhino]

Date: 4/15/2006 4:50:57 PM
Author: kenny
Rhino, You just never listen to me.
I told you some of those new GIA EX steep deeps wouldn''t perform well.

LMAO!

 

[Rhino]

Date: 4/15/2006 6:35:55 PM
Author: mdx

Interesting observation Ana, If reflection is one component of brilliance then a highly polished reflective surface should give some result.

Perhaps this black diamond is below the bottom limited. One wonders what a small mirror would record.

Johan

Hey Johan!

Good point. Actually the Bscope looks strictly at internal reflections and not external. At least this is what I assess from the images it is doing it''s analysis from.

 

[Lorelei]

So it scored a triple 000 on the Hideouscope did it Jon?

How bad actually was it? Did it even resemble a diamond?

 

[Garry H (Cut Nut)]

Date: 4/16/2006 12:29:35 AM
Author: Rhino

Date: 4/15/2006 6:35:55 PM
Author: mdx


Interesting observation Ana, If reflection is one component of brilliance then a highly polished reflective surface should give some result.
Reflections will only be seen by the camera if the stones crown facets are cut at some angle that directs light fromthe light into the lens. I yhave asked many times and many people who have access to the device to calculate the angles - it is quite relevant to the debates about the failings of the GIA''s Diamond Dock - Rhino - want to take the cover off and measure the height above stone and light diameter for each of the lighting positions?

Perhaps this black diamond is below the bottom limited. One wonders what a small mirror would record. Johan you would see a perfect reflection of the camera lens. A more interesting experiment would be to place a small domed mirror in the stones position.

Johan

Hey Johan!

Good point. Actually the Bscope looks strictly at internal reflections and not external. Amazing Jonathon - could you explain how they do this? At least this is what I assess from the images it is doing it''s analysis from.

 

[Serg]

re:Good point. Actually the Bscope looks strictly at internal reflections and not external. Amazing Jonathon - could you explain how they do this? At least this is what I assess from the images it is doing it''s analysis from.

--------


If you want see reflection for crown angle 35 degree, light position should be 70 degree from zenith.
If you want see reflection for crown angle 40 degree, light position should be 80 degree from zenith.
I think all BS light positions have angles less than 70 degree.

 

[ello]

Too funny!!! Looks like someone''s going to be very disappointed!

 

[strmrdr]

edit: storm grumpy this morning.
Sorry Garry

 

[Garry H (Cut Nut)]

Hope your day gets better Storm

 

[strmrdr]

edit: storm grumpy this morning.
Sorry Garry