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What stone might be called a 'blue diamond'?
If it clearly isn't a blue diamond


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23 replies to this topic

#1 Academic

Posted 28 February 2013 - 03:19 PM

There's a ring on eBay I've been considering for my new wedding ring. It's very close to what I had in mind - white gold, with something a bit different to diamonds or a plain band. It's also inexpensive (listed at $169, with offers accepted).

The thing is, the stones in it have been described as 'blue diamonds'. I am very skeptical about that because, as I understand it, blue diamonds are rare and very expensive. I get the feeling the seller just sells a lot of second-hand things and isn't a jeweller, so may not actually know better. Personally, I don't mind what kind of stone they are, but I am curious as to what they may be. They look a little too light to be sapphires. Possibly blue topaz?

This is the listing. Anyone have any idea what they might be? The photos are a bit crap, so hard to see well.

My other question is: with a fairly obviously incorrect description, would you still buy the ring, if you didn't actually mind that they weren't diamonds? Do you think there's a chance other things are incorrect as well - such as it not actually being white gold?

Edited by Academic, 28 February 2013 - 03:20 PM.


#2 ThatsNotMyName

Posted 28 February 2013 - 03:24 PM

Blue topaz are usually a much lighter colour than that. They look to me like the cheaper dark blue saphires. I'd be a bit suspicious about their claims personally.


#3 livvie7586

Posted 28 February 2013 - 03:27 PM

QUOTE (ThatsNotMyName @ 28/02/2013, 04:24 PM) <{POST_SNAPBACK}>
Blue topaz are usually a much lighter colour than that. They look to me like the cheaper dark blue saphires. I'd be a bit suspicious about their claims personally.


they aren't dark though (have a look at the third photo in), but they don't jump out at me as blue topaz's either.

i really don't know OP, there are any number of stones that come in different colours, so without having the piece looked at by a gemologist it's hard to say

#4 cornflake head

Posted 28 February 2013 - 03:27 PM

Aquamarine, Tourmaline or Beryl?  Or maybe just blue cubic zerconias which are synthetic and I wouldn't be paying $169 for....  (couldn't look at the link on my work computer sorry.)

#5 DEVOCEAN

Posted 28 February 2013 - 03:28 PM

Corundum or Dark Blue Beryl perhaps.

#6 Tigerdog

Posted 28 February 2013 - 03:28 PM

Probably just a blue topaz, I've got one of these and the price seems about right.  Basically you get what you pay for, if a blue diamond is so rare then it's got to cost much more than that.

#7 Ange remplie

Posted 28 February 2013 - 03:29 PM

They look like aquamarine to me.

It's a stunning ring.  If I had the money, I'd be tempted!  I say if you love it, and don't care what the gems are, go for it, why not?

#8 HRH Countrymel

Posted 28 February 2013 - 03:32 PM

*chokes on cup of tea at the audacity of someone to try and pass off a $169 ring as blue diamonds*

I'd say sapphire.

A very blurry shot though - I'd be suspicious.

#9 sammyv

Posted 28 February 2013 - 03:32 PM

If you google blue diamond there are such things are they are the same sort of colour.  Definately not a blue topaz as I have one and it is quite different in colour.



#10 Academic

Posted 28 February 2013 - 03:39 PM

Thanks for the suggestions! I hadn't thought of aquamarine or cubic zirconia.

I'm a bit wary of overpaying as well, but then I've seen plain white gold bands for as much (assuming that part is at least true!).

The seller has perfect feedback, so I would probably give the benefit of the doubt that they weren't trying to be completely dodgy, just kind of ignorant (although, you would think they might twig that blue diamonds are likely to be worth a hell of a lot more!).

At any rate, I'll have to go to a jeweller and get my proper ring size, because I suspect it may be too small, so could all be a moot point!

#11 DEVOCEAN

Posted 28 February 2013 - 03:42 PM

I have an aquamarine pendant and it looks nothing like it.


#12 HRH Countrymel

Posted 28 February 2013 - 03:44 PM

QUOTE (Academic @ 28/02/2013, 04:39 PM) <{POST_SNAPBACK}>
At any rate, I'll have to go to a jeweller and get my proper ring size, because I suspect it may be too small, so could all be a moot point!


It is really, really hard (read expensive) to re-size stone set bands Academic make sure you don't buy it unless it is the right size!

Have to agree with PPs btw - it sure as hell 'ain't aquamarine!

#13 Mamaidh

Posted 28 February 2013 - 03:48 PM

I thought sapphire, and they do come in all sorts of shades of blue.  Looks to me like it is a pawn shop selling.  I love the ring!  Have you tried contacting them to ask if it comes with some kind of certificate or anything (I don't know - I have no expensive jewellery!!)  Or, you could look at it that you love the ring, does it matter what the stones are??

#14 bestnot

Posted 28 February 2013 - 03:49 PM

So many gemstones are heat treated these days that they may have started out much darker than how they end up.

Edited by zedgirl, 28 February 2013 - 03:50 PM.


#15 bestnot

Posted 28 February 2013 - 03:55 PM

I guess what sort of gemstones they are would matter if you are going to wear the ring all the time. The softer the stone on the MOHS scale, the more likely it will wear and chip or crack. A diamond is the hardest at '10' so therefore quite tough (but not indestructible).

#16 Mamaidh

Posted 28 February 2013 - 04:01 PM

Just a thought - is it possible that they are blue diamonds, but since they are so tiny, they are not very expensive?

#17 Lickety Split

Posted 28 February 2013 - 04:05 PM

I was in a jewellery store the other day and saw a stunning dark blue pendant. I asked how much it was. $3k. Cos it was an actual blue diamond. There's no way that's what this is.

#18 WhatWouldBuffyDo

Posted 28 February 2013 - 04:06 PM

Maybe they left "created" out of the listing description?

#19 klr70

Posted 28 February 2013 - 04:15 PM

Academic - I'm not sure what the stones are, but the band is stamped 14K = 14 carat white gold, so at least that part of the description is correct.

#20 DEVOCEAN

Posted 28 February 2013 - 04:19 PM

This is my white gold, diamond & aquamarine pendant. Not the best Iphone pic.


#21 bestnot

Posted 28 February 2013 - 04:38 PM

I just googled images of blue diamonds. So many different shades and colours. Some were the colour of sapphire, topaz, aquamarine...impossible to really know without testing by a gemologist.

#22 Cyaira

Posted 28 February 2013 - 05:22 PM

It is very difficult to tell with cut and set stones what gem it is.

You won't get a 'certificate', these are extremely rare for colored gems, diamonds only usually.

In all honesty, it's probably glass or a created stone. The seller has no idea about gemmology. Sorry OP. You should buy from a reputable second hand jeweler. A good sign (but not always) of genuine gems is a 'maker's mark' which you can't find here.

#23 Academic

Posted 28 February 2013 - 10:40 PM

QUOTE (countrymel @ 28/02/2013, 03:44 PM) <{POST_SNAPBACK}>
It is really, really hard (read expensive) to re-size stone set bands Academic make sure you don't buy it unless it is the right size!

Have to agree with PPs btw - it sure as hell 'ain't aquamarine!


I'll say sad.gif my wedding and engagement rings were cut off about eight months ago, and I haven't been able to afford to get them fixed yet (hence why I'm wedding-ring shopping; my original ring cost about a tenth of what I've been quoted to fix it, I'd rather get a new one since I didn't love it anyway!). I'll definitely get myself properly sized, whether for this ring or something else!


#24 Bluenomi

Posted 01 March 2013 - 08:30 AM

Having been quoted for blue diamonds in my wedding band 5 years ago I can tell you they aren't blue diamond. I don't think they are even sapphires. I've got tiny diamonds and dark blue sapphires in my wedding band (a total of 7 stones) and that was over $700. To sell something at that price they aren't going to be natural stones.




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