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  2. GemAmore

    Incorrect Agi Diamond Grading, Please Help

    Diamond certification https://gemscience.net/gsi-diamond-certification/
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  6. Steph127789

    Si2 diamond

    Hi David! The currency was AUD. It was purchased an independent jewler (im store) so id say the high street jewler catergory! I do believe the centre diamond is just over the carrot and a cushion cut! I will have to find the paper work that came along with the ring as i think those things are on it! Thankyou for your reply
  7. davidelevi

    Si2 diamond

    Hi Steph, welcome to Diamond Review! It is quite normal for an SI2 diamond to have inclusions that are visible without magnification. As to price, without knowing a lot more it's very difficult to give even a rough opinion. To start with, "it cost 13,500" in what unit of currency? USD? CAD? EUR? GBP? SGD? Where was it purchased? (a known luxury retailer like Cartier or Tiffany will have prices that are significantly higher than a "common" high street jeweller, and that in turn will be more expensive than an internet-based dealer) Did the centre diamond come with a lab report? By which lab? What else did the lab say - precise weight and colour? Fluorescence? Finish (symmetry and polish)? A stone weighing 0.98 ct is going to be priced significantly less than one that is 1.02 ct, but both could be described as "a 1 carat stone" (they shouldn't, but that's another matter). Is the cut a proprietary cut, or was it just defined as "cushion"? What about the ring? Does it have a brand name? In which material is it?
  8. Steph127789

    Si2 diamond

    Hi this is my engagment ring.. and ive noticed a black carbon spot! Should a si2 have such a visible carbon spot like that? The centre diamond is 1 carrot and the ring cost 13.5k... is that right?
  9. davidelevi

    Is A Cavity In Diamond Acceptable?

    Sorry for the slow answer; I think I'm 4 or 5 hours ahead of you, and I went to sleep before you responded (I guess you are from Quebec?) Bear in mind that a "real" answer to most of these questions requires actually seeing the stone, however we have some indirect clues: 1. It's likely to be very small. I could not see it on the plot, until I realised that what I thought was another "indented natural" sign was actually the cavity with a single cross-hatch line. A GIA plot is not technically "to scale", but they do try to represent relative sizes. 2. Observed clarity: considering location, and the fact that GIA placed it fourth on its list of characteristics, I think it's very unlikely you'd see it without a loupe; depending on the setting and how high the stone seat comes, you may not be able to see it at all once it's set. 3. Integrity - see my answer to the first post on this thread. Honestly - don't worry. 4. It's on the pavilion (bottom) of the diamond. It's protected by a mm of the hardest natural substance known... Also, unless you have a 5 (or more) prong setting it won't work mechanically to have a prong there: you need one (or 2) on the point, and 2 behind the bulge for the stone to sit securely; the cavity is in front of the bulge. Extra pairs of prongs can be set more or less where one likes, but unless you like the look there is really no reason to have them - the stone is big enough to "carry" them visually, but it is overkill mechanically if the seat is fashioned properly. I'd worry more about protecting the point of the stone!
  10. André Cadieux

    Is A Cavity In Diamond Acceptable?

    Hi Dave! Many thanks for the quick turn. As rendered does this qualify a small cavity? With time/use, do you think it could present a structural integrity or observed clarity problem? Would a co-located prong (however unorthodox for a pear) help protect it/reinforce its integrity. Thanks again!
  11. davidelevi

    Is A Cavity In Diamond Acceptable?

    It's very close to the girdle...but below it, so I wouldn't worry about covering it with a prong - it will be hidden by the rest of the diamond. Most likely it would be not in a good place for a prong anyway, unless you have a setting with at least 5 prongs (it is a large stone!)
  12. davidelevi

    Is A Cavity In Diamond Acceptable?

    Hi André! The GIA site seems to be down. I'll keep checking and hopefully at some point before Monday it will be up.
  13. André Cadieux

    Is A Cavity In Diamond Acceptable?

    Hi David, Appreciate your keen insight. How about this cavity? GIA 5343366266 And would this be an unusual place for a prong? Many thanks!
  14. davidelevi

    Thoughts please

    You'll end up with a Type IIa - D if you continue this way... 😁 I realise that it is difficult with lockdown only about being released, but the only way to solve this is for you to see things; photos and videos only go so far. A really well cut I will look very white, in isolation
  15. Tomdiamond

    Thoughts please

    Thanks i was worried about noticible yellow hue that I felt the I and J May have so started looking at H
  16. davidelevi

    Thoughts please

    I find it less attractive (in the video and on paper) than the I-colour you were looking at a couple of days ago. YMMV.
  17. Tomdiamond

    Thoughts please

    https://www.bluenile.com/uk/diamond-details/LD13609680 twinning wisp is grade setter but confirmed as eye clean and picture does not look milky
  18. davidelevi

    PLEASE HELP!! Final choice!!!!!

    You are very welcome! Good luck with the choice, and congratulations for what will ensue!
  19. Tomdiamond

    PLEASE HELP!! Final choice!!!!!

    Thanks for your help once again. I’m down to the 1.05 J and 1.06 based on this so just have to justify if the £700 outlay is worth the benefit. Thanks again
  20. davidelevi

    PLEASE HELP!! Final choice!!!!!

    Couple of points - I think I have already given you feedback on all of these stones, so I'm not going to repeat this, but I'll focus on a couple of technical aspects: 1. Cut grades No such thing. That's Blue Nile's marketing categorisation which means "I want to sell you this diamond". If what you are using to determine "AGS" cut grades are the plots on the HCA app, then these are no longer relevant; AGS have changed their grading system at least twice since those tables were published, and the current AGS grading system is quite different from having a single set of parameters and measuring "distance" from those. 2. Clarity and effect on transparency No they would not. There are (relatively rare) SI2 diamonds where the clarity grading is due to clouds or wisps - not simply "there is a cloud in this diamond" - where the overall transparency of the stone is compromised. The call on transparency is one you need to make with your own eyes (or at the very least photos and video) - no lab grades it, even in the extreme case of (I1), I2 or I3 diamonds, where the inclusions are deemed so prominent that they may affect transparency and brilliance - note the "may" rather than "do". And I have seen plenty of I1 diamonds where the inclusions do not affect transparency or brilliance, even though they are obvious to see, at times even with the naked eye. 3. Colour grading I think what we are seeing is not so much a change in background, but in camera equipment and (especially) white balance setting. Which is why judging colour from photos is generally a thankless task, and judging colour from photos taken by unknown photographers using unknown equipment set up in an unknown environment and configured with unknown settings and post-processing is an impossible task. It is so variable on the individual observing and the circumstances that it is impossible to answer this in a certain way. Generally speaking, J-K is where people start noticing warmth in a significant way. However, a really well cut J-colour diamond can still look white "on its own", and platinum is more forgiving in this respect than rhodium (but less forgiving than unplated white gold). It all depends on what you want to "buy insurance for". Of these 3, ignoring price, my recommendation is to go with the 1.06 I. It's better cut than the other 2, it is clearly the least tinted and even though the inclusions may be easier to see they are not (to my eye and in as far as it can be seen in the video) unpleasant even though the main one is reflected 8 times! Whether the extra cash outlay is burdensome, only you can judge.
  21. Tomdiamond

    PLEASE HELP!! Final choice!!!!!

    Hi, Looking for your thoughts on 3 diamonds. I’m at the last stages of picking so one of these will be my final choice. For a bit of insight, the most important thing to me is cut. Clarity and colour I’m unsure what i prioritise although I am sure that I do not want a stone that is not eye clean nor a stone that looks noticibly yellow/ warm/ tinted in platinum setting. All 3 diamonds below have a bit of a trade off. Firstly, we go for the 1.05ct J GIA ideal cut, SI1 stone. This has been confirmed as eye clean and no green tint no brown tint and not milky. It has medium flourecence. It falls in to ‘ideal’ cut grade with AGS and score 2.2 on HCA. In the comparison picture this is the stone in the bottom left corner. It costs £3,470. It is the cheapest stone but my main concern is it may look more yellow tinted/ warmer than the other stones. It looks that way from the comparison picture I attached but also don’t think it is a fair comparison as they are all in different background so is this making the other J look more whiter than this one? https://www.bluenile.com/uk/diamond-details/LD13560253 Next up is the 1.07, J, VS1, GIA ideal cut, medium flourecence, confirmed as eye clean and no brown tint no green tint and no milkyness. This costs £3770 so £300 more expensive than the first stone. To me, in the comparison picture attached (this stone is bottom right) it looks more whiter than the first J. It looks significantly less warm, is this possible or is it just a trick of the light and more related to the background as 1 J has a grey background and the other has a blueish background? This diamond scores 2.3 in HCA calc But Falls in to ‘very good’ cut category in AGS (ie 3 from the top as it goes ideal, excellent then very good) https://www.bluenile.com/uk/diamond-details/LD13861398 Thirdly, is the 1.06 I coloured SI2 gia ideal cut diamond. This is confirmed as eye clean with no brown tint no green tint and no milkyness. No flourecence, it scores 1.5 is HCA calc and falls in to ‘ideal’ cut catagory with AGS. My worry here is if the generally more inclusions and the cloud on diagram on table will dull diamond and affect brilliance. It costs £4200 which is £700 more than the 1.05 J. this diamond Again, to me, this stone looks less warm than the First J (but is there a significant improvement in colour and is this just because of background used??). This diamond is top left in the comparison picture I sent which compares all 3 at same time. Main concern here is that is is SI2 (although confirmed as eye clean I worry that general inclusions will dull diamond and brilliance) https://www.bluenile.com/uk/diamond-details/LD13279808 In summary The 1.05 J my main concern is colour/warmer tint/ visibly yellow. Could this be significantly more warmer than other diamonds (both a J and an I) or is this just because the background isn’t comparible (ie some diamonds on a blue background some are on grey). Do you think this will be noticibly yellow in platinum? The 1.07 J, my main concern is Cut. It drops down 2 AGS grades in cut although it is still GIA excellent. It upgrades to VS1 clarity but not too bothered as all 3 eye clean. Is the downgrade in cut worth potentially having the less warm diamond compared to the previous J. (if this actually is less warm on not a trick of the background, but how would I ever know?). It is £300 more expensive than the other J. The 1.06 I colour SI2 ideal cut diamond. My main concern here is clarity. Will there be a really big colour difference moving from J to I that would justify dropping from SI1 to SI2. This is £700 more expensive than the 1.05 J and also a slightly better cut than this but my concern is that other things going on in the SI2 such as clouds etc could ruin the brilliance and light performance and sparkle of the diamond anyway. Would you drop a clarity grade to go up 1 colour grade and would this affect brilliance? Would there be noticible colour change from J to I, ie going from noticing the yellow warmness in J platinum to not noticing it in I platinum? What would you think is the best choice? Sorry for large message but the end is near! Thanks Thomas
  22. denverappraiser

    INTERNAL graining and SURFACE Graining not shown.

    No BGM means no Brown Green or Milky. None of this is very precise and no serious lab uses it. It came into trade lingo a few years ago when the politics of Zimbabwe became an issue. (Most Green stones come from a particular region of Zim). Honestly, I don't think I've ever heard a consumer use it. May I ask where you heard it?
  23. davidelevi

    SI1 diamonds, surface graining and cloud comments

    The general amount of "stuff". Twinning wisps are wispy, but when there's a lot of them there is potential to see something from an angle or another. In particular, I thought the wisp that ends on the facet at 10 o'clock (or its reflection at 4 o'clock - or is it the original? This is why a video is not good...) was quite visible - then again, it's 20-25x and the stone is loose. Once set, everything will be less visible (usually).
  24. Tomdiamond

    SI1 diamonds, surface graining and cloud comments

    Thanks. For eye clean, what in particular concerns you about the 1.15?
  25. davidelevi

    SI1 diamonds, surface graining and cloud comments

    Both the H are nicely cut, at least as nicely as the J; I prefer the 1.15, which has more contrast (which I like); the 1.09 and the J are more uniformly bright. Other people may prefer that. The 1.15 is also the one that has more potential to be not eye-clean. However this is not something that can be determined reliably via a video or photo: you (and ideally it has to be you, not someone else) have to see the diamond. Sometimes GIA does not plot all internal characteristics because they are so diffused (or there are so many) that they would mess up the plot - the purpose of the plot is to allow identification of the stone, not that of providing indications on transparency or visibility of inclusions to the naked eye. Neither H seem to have cloudiness or haziness issues in as far as it can be seen in a video - again not the ideal way of looking for these things. My guess is that either H will be just on the border of OK for clarity and transparency. The J is cleaner, but it's definitely going to look a bit more tinted when compared. Again, whether you see it and in which conditions is very much an individual thing. Of the 3, given a good return policy (which BN has), I would bet on the 1.15 being the nicest overall stone. YMMV.
  26. Haha I will for sure! I'll provide an update the day it ships and when I get her reaction
  27. You are most welcome. Do come back to tell us if you (both) are happy or not once you get the knot tied with a knot (OK, I know, I'm a dad, and that's a dad joke).
  28. I can't stress enough how much I appreciate your insight and information provided today. I feel like I was about to make a hasty decision but you have some very valid points and I've decided to stick with the 911. I value cut significantly more than the other qualities and while some of the diamonds (806/780 and maybe 745) are fairly nice, I don't think any of them are cut as nicely as the 911. I don't think think resale is even on the table because the only scenario I can see where I would change diamonds is to upgrade in the future if I have more disposable income. In that case, I would just trade it in via JA and their lifetime upgrade policy. Furthermore, the knot is 3rd in priority on the symbols on a diamond that was rated VS2 so I don't think there is any issue with the integrity (which was my main concern). I doubt I will be able to see the knot with naked eye but even if I can, it will probably bother me less than some of the inclusions on the alternatives. Thanks once again for your help! Also, just for reference the 911 was $5910 USD as a loose diamond.
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