Tiffany Ring scores a 4.1?!? What am I missing?!?

[Mark_Needs_Help]

Here's the scoop: Tiffany's Round Brilliant cut. 1.90ct , E, IS1. Total Depth Percentage 62.5%, Table Size Percentage 57%, Crown Height Percentage 15.4%, Pavilion Depth Percentage 43.4% and Culet None.

I believe that comes out as a 4.1 on the HCA scale...

What am I missing? Doesn't that sound WAY high for a Tiffany's ring? They showed me a report showing this stone achieving an "excellent" rating on 3 different facets re cut.

Any help/advice would be most warmly appreciated!

**I couldn't see any inclusions when using a loop, but let's be honest, I have no idea what I'm looking for. That said, I'd like to trust the SA at Tiffany's when she says she can't see anything either. She said she believes the inclusion(s) are most likely to be on the Pavillion. Does that make sense? She has requested a copy of the gem certification from NYC which will show me a map of the inclusions. What should I be looking for when reviewing that?

Mark

 

[ImmaSquashYou]

I'm not an expert by all means, but i've been doing my reasearch lately. But it seems that there is a typo in your clarity. Is it an si1? or is it an i1. I do'nt believe there is an is1. If it is indeed an is1, its hard to believe that there is no inclusions that you can see. If you do have an is1 that you can't see any inclusions underneath a loupe, that is awesome. ALso, what kind of certificate comes with it? You also have to remember that even though a gia certification say that its an excellent cut, plugging the numbers of that diamond into the HCA calculator might affirm that. I've looked at a lot of diamonds that are excellent cut, only for the HCA calculator to spit out a number over 4.

 

[Mark_Needs_Help]

Good catch. I'm an idiot. It's an SI1.

 

[rubybeth]

Well, just because something is at Tiffany's doesn't make it the best cut. They say they only sell the best, but obviously you've discovered that's not the case. Do you really want a ring from Tiffany's, or just something that looks like it's from Tiffany's? Generally, you can find an even more awesome diamond and a similar setting from a Pricescope vendor, and save some money, too.

 

[diamondseeker2006]

I don't have the energy to try to figure out the crown and pavilion angles which would tell me more, but honestly, we have seen this many times before. Excellent cut is a very broad range and Tiffany's has some diamonds that don't begin to meet the cut quality of diamonds we frequently see on this forum. If I were paying the Tiffany brand premium, you'd better believe I would be buying a stone that scores 2 or under on the HCA. And I'd check it with an idealscope within the return period. I'd never settle for a lesser cut diamond just to get Tiffany (and I like Tiffany fine...my wedding band is from there.) I chose a better cut diamond and an excellent quality Tiffany replica setting.

 

[Laila619]

Well, just because something is at Tiffany's doesn't make it the best cut. They say they only sell the best, but obviously you've discovered that's not the case.

Yep.

The diamond is getting dinged for that pavilion angle paired with the crown angle. There might be some leakage showing.

 

[ImmaSquashYou]

Perhaps its not too late. The pricing premium at tiffany's is a decent markup. IMO, all you're really getting is a blue bag that comes in a bluebox. Not saying you will sell it later on, but if you do, the only thing that would matter is the diamond itself and the certification. It seems like a decent chunk of change you're spending at tiffany's for a 1.9 ct si1. Perhaps buying online and using the left over money for the honeymoon/vacation. But if your SO is set on a tiffany's, then i would ask to see the idealscope and ASET pictures.

 

[distracts]

What you're missing is that "excellent" is a way broader range than "ideal," and PS and most PS vendors focus on "ideal" diamonds. That Tiffany has only perfect diamonds is nothing more than a marketing schtick. If you want to get an ideal diamond from Tiffany, you will have to work with their salespeople a whole lot and get all that info on many diamonds and run it through the HCA, or get an Idealscope and bring it into the store to look at the diamonds there and determine their light leakage. It's possible and we've all seen people do it, but most people on PS prefer not to because you can get a more perfect diamond for about 30% less from other vendors. Or you can be okay with a diamond that is excellent cut but not ideal cut, which most of their diamonds seem to be judging by what I see posted on pricescope.

A depth of 62.5 in a round brilliant is likely to leave the stone facing up smaller than its carat weight would otherwise imply.

 

[John P]

If no culet is present the given measurements correspond to CA 35.6 and PA 40.9. That reduces the HCA somewhat, but the angle combination is still deeper than that metric prefers. As another reference the AGSL cut guides predict AGS4 in performance for that combination of angles - although it could still receive GIA EX in proportions.

Tiffany & Company cuts a wider range of makes than the more cut-focused brands you'll find discussed here, but I've always found their selection to be far better than you will find in most commercial outlets. As with this example, they do include a range of higher crowns paired with pavilions near (or above) 41 degrees. With appropriate lower halves such diamonds can produce bold flashes of fire, leaning toward the look of more antique makes, but they don't produce as much brightness overall as modern Tolks or well-cut 60-60s.

Tiffany SI1 should be very eye-clean.

 

[John P]

A depth of 62.5 in a round brilliant is likely to leave the stone facing up smaller than its carat weight would otherwise imply.

With respect, that attribute is not one I'd flag. Depths of 62.X are included in the range for the top grade at every major lab. In this specific case the difference between 62.5% and (example) 62.0% depth would be 7.90mm vs 7.94mm - if table and angles remained the same.

 

[TRIALnERROR]

I was under the impression that Tiffany's diamonds were VS2 clarity and above?

 

[Dancing Fire]

I was under the impression that Tiffany's diamonds were VS2 clarity and above?

used to be, but now i think they do offer SI1 stones.

 

[TRIALnERROR]

That's odd, I have never seen an SI1 in one of their stores.