Fancy blue lab diamonds

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Are there new developments with fancy blue lab diamonds? Prices appear to have moderated and there are more that look more blue and less green/grey. Are they still cut before treatments? Do CVD and HPHT grown fancy blue labs receive the same post growth treatments?

 

[lovedogs]

Following this! I've been hunting for a slight/light blue and they are apparently few and far between. I personally think the hpht ones look closer to EGD colors, but I don't know the science behind the techniques

 

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What size/cut are you looking for?

 

[Rockdiamond]

There are "boron blue" HPHT diamonds that get the color during growth.
THe color of these stones tends to be far more subtle than the irradiated, deeper blue lab diamonds on the market.
In general- I've noticed that fancy color LGD's are not following the price reductions we're seeing in colorless lab diamonds

 

[Kim N]

I've been liking the shade and intensity seen in HPHT blue nuance stones in the I through K range.

 

[Karl_K]

The vast majority theses days are nuked cvd with post nuking heat treatment to make them more blue and less green.

 

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Is it the same process for HPHT grown that are post growth treated?

 

[lovedogs]

What size/cut are you looking for?

Theoretically a transitional type cut. But mostly impossible to find

 

[Karl_K]

Is it the same process for HPHT grown that are post growth treated?

Yes and maybe no.
same basic process but likely some different steps I would think.
The boron in HPHT could change some things.
I don't know for sure that it does but it is logical that it would.

 

[oncrutchesrightnow]

Are there new developments with fancy blue lab diamonds? Prices appear to have moderated and there are more that look more blue and less green/grey. Are they still cut before treatments? Do CVD and HPHT grown fancy blue labs receive the same post growth treatments?

Keep in mind we consumers don’t know what all has been created that we do not see.

I am noticing a wider range of intensity. It used to be a choice between bright turquoise color for nuked and light blue nuance for HPHT. Now I see more options including really really dark, which I will definitely get one day.

We need better data on price. I have noticed some price decreases mainly because I look for weird things. The really cool dark stones and the richer colors that drew my interest when they first became available for consumers to purchase used to cost too much for me. Now they have come down to attractive prices. But that is anecdotal.

‘There was a dark blue that I was tracking that went from $1200 in July to $1000 in September to $600 in November/December, and now I do not see it listed for sale.

 

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I have been tracking well cut fancy intense/vivid blue rounds that are HPHT grown with post growth treatments. Some have dropped to similar prices as well cut colorless rounds, but of course there are still ones that list for triple.

 

[Dreamer_D]

What sites carry lgd fcds?

 

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loosegrowndiamond
Brilliance
Ritani

 

[Ibrakeforpossums]

DiamondsbyLauren.

 

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Theoretically a transitional type cut. But mostly impossible to find

I see a couple H/I color faint/light blues in the 3 ct range with fatter arrows on loosegrowndiamond, all under 2k.

Media Links

 

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As grown fancy vivid blue

Loupe360

loupe360.com

Media Links

 

[Kim N]

As grown fancy vivid blue

Loupe360

loupe360.com

Media Links

That shade is stunning.

 

[Lisa Loves Shiny]

As grown fancy vivid blue

Loupe360

loupe360.com

Media Links

Wow! Do you think the color looks this wonderful in real life? Stunning.

 

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I think someone should get it irl and share more videos on PS!

Of the few fancy vivid blues I have seen in person the vendor videos are pretty accurate for color.

 

[Rockdiamond]

As grown fancy vivid blue

Loupe360

loupe360.com

Media Links

Hi Everyone!
That stone was grown by a buddy of mine.
This is a different process than the "Boron Blue" stones.
He told me they get the color in the rough, HPHT grown.

 

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Would love to see more from your buddy!

 

[Mooshi]

Would these colored, and especially darker colored diamonds throw rainbows just as much as their white counterparts?

 

[oncrutchesrightnow]

Hi Everyone!
That stone was grown by a buddy of mine.
This is a different process than the "Boron Blue" stones.
He told me they get the color in the rough, HPHT grown.

Interesting. Any idea what is in the rough? Nitrogen/hydrogen?

Would these colored, and especially darker colored diamonds throw rainbows just as much as their white counterparts?

In my limited experience (dark brown pink, dark violet grey, grey violet, and grey blue EGD; purplish-pink LGD, kind-of-grey LGD), the dark colors give off fewer rainbows. BUT it is sooooo cool to get any rainbows out of a dark rock. How often you see that happen in life? I will be buying dark LGD when prices go down.

 

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Would these colored, and especially darker colored diamonds throw rainbows just as much as their white counterparts?

I posted about my experience in another thread

There’s nothing quite like diamond fire! I find that darker tone can limit the amount of visible fire though. These are both fancy vivid blues, top is lighter tone and a near H&A round, bottom is darker tone and a H&A round. The amount of visible fire is noticeably different in person, especially under the table where light has to travel through more material.

https://imgur.com/a/CjnYB2T

 

[Rockdiamond]

Hi everyone!
Sorry for the delayed reply- I took a well deserved day off yesterday.

Would these colored, and especially darker colored diamonds throw rainbows just as much as their white counterparts?

IF the stone is deeply colored, that will prevent visible "fire events"
In the case of faint or very lightly saturated stones, you can see the rainbows.
Also - in many cases, FCD's are not cut in a manner that encourages fire.

Interesting. Any idea what is in the rough? Nitrogen/hydrogen?

I flunked chemistry in high school....so are you really sure you want my opinion on this...hahahah

Seriously- I have not gotten to that level of detail with the growers.....

 

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As grown HPHT fancy intense blue

1.50 Carat Cushion Blue Lab Diamond IGI LG608366871 | Ritani

1.5 Carat Cushion Lab Diamond VG Cut Blue Color VS1 Clarity with diamond report number IGI #LG608366871

www.ritani.com

 

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Another as grown fancy vivid blue

Loupe360

loupe360.com

 

[RockFox]

@lovedogs check out Fiorese Jewellery on Instagram they have light/slight blue diamonds and they do custom cuts (they have for me). Not sure about the chemistry but I know they will be happy to answer.

 

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GIA graded 4.5 ct Asscher fancy intense blue as grown HPHT, pricing looks comparable to colorless ones.

Lab-Created 4.50 Carat Fancy Intense Blue-VS2 Asscher Cut Diamond

This asscher cut 4.5 carat Lab-Created Fancy Intense Blue color vs2 clarity has a diamond grading report from GIA

www.bluenile.com

 

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This one is stunning, with a stunning price to match. GIA graded 5.68 ct cushion fancy intense blue as grown HPHT.

https://www.bluenile.com/colored-diamond-details/blue-20159561