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#500638 - 07/03/09 08:22 PM Signity Elite Pics and Quick Review
anangel Offline
Omniscient

Registered: 03/10/05
Posts: 2673
Loc: Central California
As you may know, I decided to order one of the Signity Elite CZs for review.
I hope this is helpful!
First, what is a Signity Elite CZ?
as per http://www.elitecz.com (the vendor I purchased a few rounds from);
"Welcome to Elite™ CZ - A division of Gem Odyssey: Your direct source for ideal cut diamond coated Elite™ Cubic Zirconia. We are proud to offer exclusively these premium qulaity cz to you. The entire surface of stone is coated with a thin layer of amorphous diamond vapors using state of the art technology, called CVD ( Read FAQ for more info ). This renders the CZ scratch proof and makes them durable, thus enabling us to offer you a lifetime warranty against scratch, discoloration, and loss of brilliance.

All our Elite™ Cubic Zirconia is ideal cut to exact proportions. Our round stones display 8-pointed star pattern known in the diamond industry as Hearts & Arrows effect - A hall mark of ideal cut diamonds."
Next question, what is CVD? again, as per elitecz.com
"#


# What is CVD ?
CVD ( Carbon Vapor Deposit ) is a chemical process used to deposit invisible thin layer of carbon in a plasma chamber on the surface of CZ to make it scratch proof, durable and prevents it from discoloration. However, this does not increases the hardness of Elite™ Cubic Zirconia , which is 8.5 on Mohs scale - Yes it cuts glass."

side note here, for comparison to an Asha stone in terms of hardness/toughness, as per BTD;
"The ADT of Asha also offers additional hardness, toughness and scratch resistance; standard CZ is approx. 8.5 on the Mohs, Moissanite is 9.25 and the ADT of v5 Asha is 9.7-9.8 (note that the Asha itself is approx 9.0 since it is a combination of ADT and CZ). The ADT also offers enhanced luster and it gives the Asha the ability to handle light as a diamond does. "
So it doesn't seem that the hardness/toughness of a Signity Elite is impacted by its coating, where as by v5, an Asha was .5 harder/tougher on the Mohs scale.

What shapes are available?
On the elitecz.com website, I only saw rounds and princess cuts- again from their site
"All our Elite™ Cubic Zirconia is ideal cut to exact proportions. Our round stones display 8-pointed star pattern known in the diamond industry as Hearts & Arrows effect - A hall mark of ideal cut diamonds."
Now, correct me if I'm wrong here, but to the best of my knowledge Signity stones are machine cut- the advantage, in theory is a consistent cut that is cost effective. Asha's are a hand cut stone.

Price;
I bought 2 rounds- on 6/29 I paid 8.95 for the 6 mm and 16.95 for the 8 mm.

Color;
As per elitecz.com
"What color & clarity grade is Elite™ Cubic Zirconia compare to diamonds?
Our Elite™ Cubic Zirconia is flawless and D/E in color ( colorless ) with fine polish"
Yes, this will be a white stone, but the majority of CZ's are very near colorless, sadly, even H colored Ashas are hard to come across, so hard to hold it against them.

Now, the pics-
First, here is the packaging for the items;

I got a tracking number from USPS promptly once it had shipped, and it arrived in the padded yellow envelope pictured.
Since I only paid $2.95 for shipping, I really shouldn't expect much more- it was very similar to the way I remember receiving some interlaps.
Here is a picture of the loose 8 mm stone on the white cotton pad it was wrapped in;

and another

Initial impressions- a good value for what I paid. It was a nice stone with good sparkle. Definitely a colorless stone as advertised- I was told it was colorless, so I won't complain, but personally, I'm not a huge fan of colorless stones since you don't see many diamonds so white.
Here is another picture with a black background- its hard to avoid the glare and get that perfect pic!

Loose on white leather box

I was able to get an okay picture of the arrows and adjusted the contrast so they were easier to see;

Here are a few comparing it to a colorless 8 mm round interlap


They seem to be very comparable stones- I'm not sure that I need any strong visual difference from the CVD, but perhaps once set it will help keep it cleaner, like an Asha (the cleaner guess is ALL speculation since I have not had it set- if you have first hand experience, feel free to let everyone know.)
Hope this helps!
Please let me know if you have any questions or requests for other pictures!

_________________________
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#500656 - 07/03/09 09:13 PM Re: Signity Elite Pics and Quick Review [Re: anangel]
GIABryan Offline
Connoisseur

Registered: 09/03/08
Posts: 2139
Nice stones \:\) Thanks for all of the info!


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#500664 - 07/03/09 10:17 PM Re: Signity Elite Pics and Quick Review [Re: GIABryan]
lessw Offline

The Black Orlov

Registered: 04/04/02
Posts: 4915
Good review Anangel.

I have to point out some flaws in their claims however:

 Quote:
What is CVD ?
CVD ( Carbon Vapor Deposit ) is a chemical process used to deposit invisible thin layer of carbon in a plasma chamber on the surface of CZ to make it scratch proof, durable and prevents it from discoloration. However, this does not increases the hardness of Elite™ Cubic Zirconia , which is 8.5 on Mohs scale - Yes it cuts glass."


CVD does not stand for "Carbon Vapor Deposit"...its stands for Chemical Vapor Deposition. CVD produces either polycrystalline or single crystal diamond.

We tried doing CVD for the Asha and it failed - it blackened the Asha CZ core, and as soon as we put it in the ultrasonic, the thin layer of polycrystalline diamond popped off and floated to the top of the tank.

Thus, unless they have made a major technical breakthrough, they are not doing CVD.

Also, they claim it does not make the stone harder, but then note that it makes the stone "scratch proof"? This is rather contradictory.

Anyway, I would definitely ask for more technical details about what coating they are (or are not) actually putting on the stone.

From an engineering perspective, I can say their claims don't make sense. If the person writing up the description did not have the requisite technical knowledge, they should get their engineer to write it...otherwise, as claimed, it does not make sense.

I would encourage you to write and ask them for a better technical explanation, otherwise I am doubtful they are doing a coating (between that and the retail pricing).

Hope that helps
Less

_________________________
Recipient: GIA Diamonds Certificate

President,
http://BetterThanDiamond.com

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#500726 - 07/04/09 01:10 PM Re: Signity Elite Pics and Quick Review [Re: lessw]
poppyseed Offline
The Florentine Diamond

Registered: 12/16/08
Posts: 5558
Loc: USA
I agree that they compare favorably to an Interlap. I don't think that the CVD makes visual difference as I have both coated and plain Signity Stones.

Point well taken Les, but at under $15 for an 8mm RB pretty decent looking stone, you can't beat the price if you want own several in addition to a more expensive stone such as Asha.



_________________________
Amcordesign.com
FabJewelry

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#500730 - 07/04/09 01:33 PM Re: Signity Elite Pics and Quick Review [Re: poppyseed]
CaneyQueen Offline
Mentor

Registered: 06/12/09
Posts: 1056
Loc: Northeastern KY
OMG! I can get a ring for every finger and look like I'm ready for a bar fight! Instead of brass knuckles, mine will sparkle.....


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#500731 - 07/04/09 01:38 PM Re: Signity Elite Pics and Quick Review [Re: poppyseed]
GIABryan Offline
Connoisseur

Registered: 09/03/08
Posts: 2139
I've got one of the Signity "CVD" stones and I placed it in an ultasonic that I have at home and it's a quite powerful ultrasonic that is used in dental offices. I left it in there for over 15 minutes and i didn't have any of the "coating" come off. Now, I don't know if there is a way to tell if it actually has a "CVD" coating.


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#500734 - 07/04/09 02:00 PM Re: Signity Elite Pics and Quick Review [Re: GIABryan]
poppyseed Offline
The Florentine Diamond

Registered: 12/16/08
Posts: 5558
Loc: USA
 Originally Posted By: GIABryan
I've got one of the Signity "CVD" stones and I placed it in an ultasonic that I have at home and it's a quite powerful ultrasonic that is used in dental offices. I left it in there for over 15 minutes and i didn't have any of the "coating" come off. Now, I don't know if there is a way to tell if it actually has a "CVD" coating.


Did you get a certificate w/ it? He told me he was going to start mailing cert. of authenticity w/ each stone. Also don't forget to save your receipt. If the stone breaks or gets scratched he will replace free except for $2.95 shipping.

_________________________
Amcordesign.com
FabJewelry

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#500739 - 07/04/09 02:16 PM Re: Signity Elite Pics and Quick Review [Re: poppyseed]
GIABryan Offline
Connoisseur

Registered: 09/03/08
Posts: 2139
No, I didn't get a cert with it. Maybe mine was not one of those on his list to get one lol. Next time I'm sure I'll get one. I'm planning on ordering more stones. \:\)


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#500752 - 07/04/09 02:38 PM Re: Signity Elite Pics and Quick Review [Re: GIABryan]
deb Offline
The Imperial Diamond

Registered: 06/11/06
Posts: 6331
Loc: by the ocean in my dreams!!
Poppy I love that ring in your avatar!!!


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#500758 - 07/04/09 03:02 PM Re: Signity Elite Pics and Quick Review [Re: deb]
poppyseed Offline
The Florentine Diamond

Registered: 12/16/08
Posts: 5558
Loc: USA
Thanks so much Deb. It's one of my newer purchases. Signity Asscher 3ct.

_________________________
Amcordesign.com
FabJewelry

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