How do you check a diamond serial number?
Diamonds graded by the GIA have serial numbers to prove their authenticity. The serial number on the diamond corresponds with the number on the certificate, so you know it’s a match. The number is engraved on the girdle of the diamond, which is the area of the stone that separates the top from the bottom.
How do I read my IGI diamond certificate?
IGI certified diamonds are graded on a concise color scale. These grades range on a scale from D (100% colorless/white/clear) to Z (which include diamonds with the most yellow tint/primarily yellow-hued diamonds). The carat scale for IGI certification varies according to a size vs. weight ratio.
How do you evaluate a diamond grading certificate?
How to Evaluate a Diamond Grading Certificate
- Determining the Provider.
- Look for the Cut.
- Check the Date.
- Check the Carat Weight.
- Evaluate Measurements for a Round Diamond.
- Evaluate Measurements for Fancy Cut Diamonds.
- Note the Clarity Rating.
- Review the Color.
How can you tell if a diamond is real?
Lay the stone onto the dot with the flat side down. Through the pointed end of the diamond, look down onto the paper. If you see a circular reflection inside the gemstone, the stone is fake. If you cannot see the dot or a reflection in the stone, then the diamond is real.
What do numbers on a diamond mean?
The numbers mean “carat weight“. It’s the carat weight of the diamond(s) in your ring. If you have a diamond solitaire and you see . 50 stamped inside the ring, that means the diamond is 1/2 carat.
How do you analyze diamonds?
Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. Diamonds can be fashioned into a variety of shapes and still be beautiful. These are known as the 4Cs.
Is IGI a good diamond certification?
James Allen does sell IGI certified diamonds as well, but we never recommend those.) The point of buying a diamond with an independent certificate is to get peace of mind that the diamond is the quality they claim.
1) IGI vs. GIA.
|Diamond||IGI Grade||GIA Grade|
|1.00 ct||J, SI2||K, I1|