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Certified Marquise

Importance of GIA vs. IGI certification on a diamond?

So we tried to ring and I understand that standards tend to EGL be a little more than lienient the GIA. I also understand that the standards of the GII are a bit stricter than the EGL, but is even more lienient the GIA. But in all honesty a diamond is certified by the IGI really worth that much less than that approved by the GIA? For example, after shopping around we see a difference such as 0.75 carat marquise cut Colour: GIA cert E SI 1 $ 2500 0.75 carat Color: D VS 2 IGI cert $ 2000 Certification is really much more interesting to warrant a $ 500 - $ 1000 difference in price (We saw a big jump in another store selling diamond GIA cert). We just feet wet and try to understand what we really need to take into account and so on.

One thing left on the two diamonds is the quality of the cut, which is an important factor. With Marquis also there may be an ideal ratios. IGI grading is supposed to be softer than GIA, IGI would even ordered a lower value, but not by the difference you see. Difference should be about 10%. Marquise cut diamonds for the more traditional look of length to width ratios between 1.75 and 2.25

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