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[tanishia]

The salesperson told me that all of their diamonds are a Tiffany's cut, meaning there is little variation across different price ranges. He also mentioned something about the patent defining ideal cut having been expired, that its definition is no longer universally agreed upon.

It doesn't make sense for Tiffany's to sell poor quality cuts, but I just got nervous that the salesperson wouldn't answer what cut other jewelers would classify their diamonds as.

[ear]

Interesting that you are paying a premium for a diamond from Tiffanys but the sales person cannot answer this question. There is a trademark registration on Tiffany. But Tiffany does not own the ‘patent’ to their cut. It is a Lazar Kaplan ideal cut diamond. If you are concerned about light performance, brilliance and scintillation - then your best bet is to go for a diamond cut by Hearts on Fire or an A CUT ABOVE diamond - more info on cut is located in the links.

Good Luck!

[artek57]

You are right to be nervous. Never buy from a person who won't tell you the straight truth.

Read this exchange if you want to be even more confused.
http://www.pricescope.com/forum/rockytalky/whats-a-tiffany-cut-t9731.html

http://www.ocalagoldanddiamond.com/images/diamondTypes.png

Worth reading:
http://www.ocalagoldanddiamond.com/diamonds.htm

[iker]

I never would ever expect a Tiffany engagement ring, but for fun, I went to Tiffany a few months ago to check out the rings.

My, how they were gorgeous! I've seen diamond rings before that but none as beautiful as the ones from Tiffany (there are probably some better ones out there with other amazing brand names...) I don't think you should be too worried. And I don't think Tiffany advertises their 4Cs too much either...

[garbhach65]

most people have herd of tiffany's so its a selling tactic

[baigh75]

salesman is full of s hit. there is no patent on ideal cut diamonds.

ideal cut round brilliant is an ideal cut round brilliant - a tolkowsky cut. there are other round cuts too, like solasfera, old european cut....

before you spend all this money, i suggest you spend a few weeks on pricescope learning about diamonds. http://www.pricescope.com/forum/

whiteflash has the best ideal cut rounds. http://www.whiteflash.com/

good old gold has the best old european cuts, called the "august vintage round" http://vimeo.com/7314140

good old gold - august vintage rounds. http://www.goodoldgold.com/