Blues anyone?

[swingirl]

[I'm certainly no expert but I've never seen natural blue color like that, but have seen man-induced color like that.
The price difference will be perhaps 100 fold, or more so for insurance purposes, and just to be sure of what you have, I'd send them to GIA to establish the origin of that electric blue color.
Even if the color is man-induced they are still very beautiful gems.

If you DO have GIA grading reports stating this blue is of natural origin you have my apologies, and I have just learned something.

Kenny would they have been doing this type of man-enhancing in the 70's and 80's. I like to think that a royal in the Saudi family would not have such a stone, but who knows, maybe they have them to give to westerners...[/quote]
My sister-in-law really wanted a blue stone in her ering but brother-in-law got her a white diamond. They had it treated (she knew it would lower the value but that was what she wanted) and it ended up light turquoise blue. They did this in the late 1960's so the precess has been around a while.

 

[swingirl]

PS ate my post.

 

[LD]

I've been collecting coloured diamonds for many years now and Cuso's blue stones set off alarms. They don't look like any diamonds I've ever seen, irradiated or natural. However, they do look like Topaz, Zircon or a synthetic of some description. The colour is suspiciously too pure and too blue for them to be diamonds. Typically natural blue diamonds in this range exhibit a good deal of grey as a modifier. The ones in the photos have hardly any grey at all. That would make them exceptionally rare. If they are real (and I highly suspect not), they would be worth a fortune as already has been said. Also, to find not one but two rare diamonds like this is unheard of so again, alarm bells are ringing.

In the 80's and really up to now irradiated diamonds achieve a much deeper blue as a rule. It would be difficult to find not one but two irradiated diamonds that achieved this colour.

In terms of cut, coloured stones of all descriptions - including diamonds - are suseptible to having windows. So again it's not an indicator of anything.

Some stones will beat a normal diamond tester that a jeweller may rely on - moissanite for example! That's why some diamond testers now test for Diamonds and Moisannites separately. A local jeweller may be able to give a guess but it may not be accurate.

Even if the jeweller thought these were diamonds there's no way that he/she could say with any certainty what treatment had been applied with any certainty whatsoever - again it would be a guess or gut instinct. The only way to verify with certainty is to send to the GIA or another reputable lab for their analysis.

The price difference between natural and irradiated for stones of this size would be off the chart - which is why a lab report is essential.

Unfortunately, family history is often the cause of mis-identification of gemstones. Many many synthetics were sold (and put into jewellery) and these were passed down through the family as X, Y or Z when in reality they weren't what they purported to be. Alexandrite is an old favourite that crops up with alarming frequency as being an heirloom that really isn't!

I hope for Cuso that I'm wrong. It would be sensational to have a find like this and, if true, I'm quite sure it will be news worthy. Let's hope Cuso sends the stones to the GIA for absolute certainty.

____________________________________________________________________

Blue gold can be achieved, as can red gold, purple gold, green gold etc as a rhodium type plating. Believe it or not, QVC were selling gold chains in a rainbow of colours a few years ago. Hope that helps.

 

[rosetta]

I think CUSO has disappeared off PS!

I entirely agree with your view though LD.

 

[WinkHPD]

I don't mean to go off-topic here, but CUSO's blue diamonds got me curious about about how other blue diamonds might look. I took a fancy to the blue stones in this ring!

"Everyone looks for the expensive engagement rings to witness one of the most special days of one’s life. One such individual’s proposal to an ex-model involved a $1.5 million engagement ring. The price may seem way out there, but it’s not even close to the most expensive ring in the world.

The Chopard Blue Diamond Ring is the ring that makes any other diamond ring look bad. Set with many small blue and white diamonds, the expensive ring also has diamond shoulders and an platinum band paved with diamonds.

Blue diamond is among the most expensive diamonds in the world. It is found among boron deposits, from whence it derives its shade. This particular gem weighs in at nine carats.

The world’s most expensive ring is valued at $16.26 million, enough to put a dent in the wallets of even the wealthiest individuals."


Deb/AGBF

Just now reading this thread and I wanted to comment that Southeby's Geneva sold a 24.78ct Pink diamond ring in November for $46 million dollars. The sale broke several world records including the highest value jewel sale ever and the highest price per carat for a fancy intense pink diamond, over 1.86 million dollars per carat.

Wink

 

[WinkHPD]

Blue gold does exist. I can't find the links at the moment but it is out there. I'll keep looking.

Just a guess here, I am guessing that the "blue gold" is a result of the photographer not the metal.

Wink

 

[ksinger]

Blue gold does exist. I can't find the links at the moment but it is out there. I'll keep looking.

Just a guess here, I am guessing that the "blue gold" is a result of the photographer not the metal.

Wink

Somebody needs to explain this to me then. I was told that this is NOT just a surface treatment, but maybe that was just not true?

http://www.wlhlimited.com/

 

[Imdanny]

Blue gold does exist. I can't find the links at the moment but it is out there. I'll keep looking.

Just a guess here, I am guessing that the "blue gold" is a result of the photographer not the metal.

Wink

I know it happened but I still can't fathom it. $46 million for a diamond ring.

I know it's a pink diamond, etc., but it didn't look 1/10 as nice to me as the Krupp (and who knows what that's worth).

There are Mogul treasures in private hands that didn't sell for much more than $1 million.

So someone's going to walk around with a ring and three bodyguards? It just seems crazy to me.

 

[Sniven]

Blue gold does exist. I can't find the links at the moment but it is out there. I'll keep looking.

Just a guess here, I am guessing that the "blue gold" is a result of the photographer not the metal.

Wink

http://en.wikipedia.org/wiki/Colored_gold

 

[WinkHPD]

Blue gold does exist. I can't find the links at the moment but it is out there. I'll keep looking.

Just a guess here, I am guessing that the "blue gold" is a result of the photographer not the metal.

Wink

http://en.wikipedia.org/wiki/Colored_gold

I have a friend with a blue gold ring, I just think the blue gold in the picture provided earlier was more the result of the photography rather than actually being blue gold.

I am certainly willing to be wrong, but without going back to look, did the description claim it to be blue gold?

Wink

 

[that_someone_special]

I think CUSO has disappeared off PS!

I entirely agree with your view though LD.

I wouldn't come back either if I was spouting off about my 4 carats of natural blue diamonds and how awesome I am and I paid $XXXXX for this watch and $XXXXX for that diamond/ watch/ high quality item and ..... oh wait? My expensive blue diamonds are actually topaz?