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May 23, 2012, 03:43:42 PM
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| | |-+  Fluorescence: What is an "Over-Blue" Diamond? This one is almost Purple!
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Author Topic: Fluorescence: What is an "Over-Blue" Diamond? This one is almost Purple!  (Read 4577 times)
Diamondsbylauren
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« on: December 17, 2008, 06:43:43 PM »

HI Everyone!
We get a lot of questions about Fluorescence- and rightly so- it's such an interesting topic for a diamond lover.
Today we're considering a stone which has very strong Fluorescence- so much so, I'd call it an "over-blue"

This particular diamond, a 3.05 cushion, has a very unique look.
In many cases and "over-blue" diamond will have a dull appearance.
Of course that's a death knell for a diamond in our eyes. Anything but dull.
But in this case the Fluorescence manifests itself as a ...purple(?) tint!

There's no GIA report on this one, but one of the EGL's called it M/SI1.
Of course that means little to us...
I'll have photos up soon
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Diamondsbylauren
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« Reply #1 on: December 17, 2008, 07:48:26 PM »

Here we go


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David
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oldmancoyote
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« Reply #2 on: December 17, 2008, 08:46:20 PM »

Holy (blue) cow! I'm not sure I see the purple, but sure I see the blue.
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Mikla
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« Reply #3 on: December 17, 2008, 09:34:01 PM »

It's kind of weird.  Very pretty coloring but it almost looks a little milky.  Why is that?

Mikla
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robin
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« Reply #4 on: December 17, 2008, 09:58:42 PM »

That's really weird!  I'm not sure whether I LIKE it or just find it curious, though....  I'll have to think about it. 

What was the lighting for those pics?

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Diamondsbylauren
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« Reply #5 on: December 18, 2008, 12:06:05 AM »




What was the lighting for those pics?

It was normal room lighting......

It's kind of weird.  Very pretty coloring but it almost looks a little milky.  Why is that?

Mikla

In person, as you may see in the video, there's no milkiness- what you're seeing the the fluorescence.
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Diamondluvr
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« Reply #6 on: December 18, 2008, 08:12:53 AM »

Honestly I think the stone is really cool and would love to add it to my DBL collection!  Beautiful setting, love the cut.

But that being said, the fluor can be distracting(and cool at the same time)---my RB with strong green fluor really glows(not milky) more than sparkles in certain lighting conditions.  Is this the case with this stone??? 

If so, it would take the right buyer(as with any ring) that understands that it may not always be glittery.

This is a tough one!!!
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« Reply #7 on: December 18, 2008, 01:16:46 PM »

I can definitely see the blue and a less intense purple in some of the facets.  Needless to say, I've never seen anything like this.  It reminds me of a rhinestone reflecting whatever is behind the glass. 

I like the setting and the cut of the diamond, but as far as buying this for the inventory, I have no reccommendations.  I'm very conservative in my choices; it would have to be 'dirt cheap' for me to purchase anything that 'weird'.  Although, I would have great fun wearing it!

BTW is that a Daussi?

Thanks for sharing, David.
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« Reply #8 on: December 18, 2008, 01:50:57 PM »

You're so welcome Sparkley!

Yes, it's a Daussi Cushion, and ring.
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Sparkly-OCD
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« Reply #9 on: December 18, 2008, 10:18:51 PM »

Snip

it would have to be 'dirt cheap' for me to purchase anything that 'weird'. 

Snip

HaHaHaHa!  A 'dirt cheap' 3.05 carat diamond!  Grin  (Must be the cortisone talking...)
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Mrs Mitchell
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« Reply #10 on: December 19, 2008, 03:41:18 PM »

It's coooooool! I looooove it!

David,  I can't afford a ring right now, but could you be a dear and just send it to me anyway? Thanks! Grin

Jen
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ah2bqat
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« Reply #11 on: December 19, 2008, 08:50:03 PM »

Hey Sparkly-OCD, care to spread a little knowledge?  How or What makes it a Daussi?  I've seen that term, but not really wired in to what it means. 

That is a very different stone.  Love the setting, tho.  The only thing I ever met that was too blue was a synthetic sapphire.  I'm thinking this beauty would require an in-person visit to really get a good feel for her.
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« Reply #12 on: December 19, 2008, 09:22:55 PM »

Looooovvvvvveeee that cut!

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Mindi  munky2
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« Reply #13 on: December 19, 2008, 11:46:49 PM »

Hey Sparkly-OCD, care to spread a little knowledge?  How or What makes it a Daussi?  I've seen that term, but not really wired in to what it means. 

That is a very different stone.  Love the setting, tho.  The only thing I ever met that was too blue was a synthetic sapphire.  I'm thinking this beauty would require an in-person visit to really get a good feel for her.

http://coloreddiamon...hp/topic,2070.0.html

ah2bqat,

In the above thread, David shows some Henri Daussi rings and makes the following comment:

"We have a very strong relationship with the company that produces the Henri Daussi line, and carry a lot of their stones.
Unlike some of the designer lines, which are solely selling semi mounts, the company that owns Daussi is very strong in the world market as a cutter of unique diamonds."

Eventhough DBL manufactures almost everything on the website, David carries a few Daussi rings in his inventory.  I think the Daussi's that David has stocked, all have a particular/unique look.
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« Reply #14 on: December 20, 2008, 12:08:10 AM »

Thanks you Sparkly-OCD.  If you see any others would you point them out to me, please?  Unique and unusual are generally my favorites.
 13
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robin
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« Reply #15 on: December 20, 2008, 12:41:03 AM »

Now that I've seen the video, this one has really grown on me.

For one thing, it must face up HUGE for a 3 ct. stone, plus the halo-- woo-wee! 

For another, I LOVE this setting.

What color do YOU think it is?  Or is it impossible to tell, since I'm guessing you've only seen it since it's been set?

What's the price on this baby?
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« Reply #16 on: December 21, 2008, 09:01:22 PM »

It is such an unusual cut. Fat facets but something about the angle of the facets is what makes it so interesting.
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Diamondsbylauren
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« Reply #17 on: December 24, 2008, 04:11:37 PM »

HI Everyone!

This one was just too nice to pass up...
Here's the listing page
What's the price on this baby?


We got the EGL USA report with the ring.
For once I can agree with the grade given.
Of course I can only estimate as the diamond is set, and I have not seen it loose.
ITEM #: R2823
Platinum Diamond Ring

CENTER STONE:
  WEIGHT: 3.05ct
  SHAPE: Cushion Cut
  COLOR: M
  CLARITY: SI1
  MEASUREMENTS: 11.65 x 8.24 x 3.49 mm
  TOTAL DEPTH: 42.4%
  TABLE SIZE: 64%
  POLISH: VG
  SYMMETRY: G
  FLUORESCENCE: STRONG BLUE
  EGL-USA REPORT #: US51080013D

SIDE STONES:
  TOTAL WEIGHT: 0.65cts
  QUANTITY: 95
  SHAPE: Round Brilliant
  COLOR: G
  CLARITY: VS

MOUNTING:
  Platinum

Currently sized at: 6.5
We will ship the ring in your size.

It is listed on our site for $13995.
If anyone reading this wants to buy her, we're going to offer a "secret special" price of $13,000
( bank wire price) for forum members and readers.
If a reader or member wants to use a credit card the price would be $13,650.
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David
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shiba
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« Reply #18 on: December 26, 2008, 05:34:11 PM »

I would love to see a hand shot!
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Diamondsbylauren
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« Reply #19 on: December 28, 2008, 08:27:19 AM »

I would love to see a hand shot!

Please check back this week- we'll get some hand shots!
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David
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GIAGirl
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« Reply #20 on: December 29, 2008, 12:09:11 AM »

I want to see handshots of this one as well.  I think this is such a neat ring. 
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Rubymu
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« Reply #21 on: December 30, 2008, 10:36:21 PM »

That stone is special....in the good way.  The video pushed me over the edge...that's fantastic. 
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« Reply #22 on: January 08, 2009, 12:57:08 PM »

Wow!  This ring intrigues me.  Normally fluorescence is seen as a negative but in this case, I think the opposite is true.  Completely unique.  Curious, how does fluorescence impact the look of colored diamonds?  Is green or yellow fluorescence desirable in a yellow or green diamond and is blue fluorescence desirable in a grey or blue diamond?  Or does it even matter at all? david
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Diamondsbylauren
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« Reply #23 on: January 08, 2009, 01:40:13 PM »

HI All!

Zoey- I would not say that fluorescence is seen as a negative- that's too broad a statement.
For example, a J or K color with blue fluorescence can look just like an H.
In such a case, the fluorescence is a positive thing- although it probably would not make the stone more expensive.
It is true that in higher colors- and more expensive stones- that fluorescence will reduce the price marginally- but that's more a market preference- it does not really have anything to do with the actual characteristic.

In fancy Colored diamonds it's similar. If a Vivid Yellow has fluorescence it will affect the price.
It can also have a large impact on the look of a fancy colored diamond.

With incredibly rare stones- such as a blue, it's really case by case situation.....
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« Reply #24 on: January 08, 2009, 06:38:36 PM »

Sorry did not mean to imply anything negative here.  It is just in the typical brief 4C's education you see out there, they do not put a positive spin on fluorescence (which has always kind of bugged me).  I guess this one intrigued me because I've got stones with fluorescence that I picked over ones that did not have it because I preferred how the stones looked visually.  They seemed to have more color to me for some reason.  I don't see fluorescence as a negative at all and wondered if there were cases that the industry saw it as a positive (particularly with fancies).  Thanks for the explanation.
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