Oval GIA report


I have recently started to look for an engagement ring, and have read Fred Cuellar’s book, “How to buy a Diamond”. I have found it very helpful in looking for a diamond and for a store. My search has lead me to two different shapes one being round, the other an oval cut.

I have been to a few jewelry place in Des Moines, Iowa, and the round cuts have had all the information given on the GIA report. My question is about Oval GIA reports. Some of the jewelers give a GIA report for the oval cut but it doesn’t have all the requirements ask for to complete the Proportion questionnaire Sheet (P.Q.S).

When I asked what the pavilion angle on the oval diamond was, I was told it changes from side to side on the diamond so the GIA report does not list it.

Is this true?
Do oval cuts not give the pavilion angle on GIA reports, if the angle is not listed should I look at the Length to Width ratio to ensure the diamond is proportional correct?

Thank you for your help,
Lucas Bauer

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diamonds for earrings

i’m interested in cushion cut stones for stud earrings. i am aware of the 4 c’s. what do you recommed for color and grade for earrings? i’ve been told it’s not worth investing in high grade stones for earrings.

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Leo diamond

I need to sell my Leo princess cut diamond , 4.91x 4.86 x 3.82, 0.80 ct, near colorless, vs1. How much would this be worth?

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What are diamondeau are they real diamonds or next best thing to a fake.

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Diamond/ moissanite testers

Hi I have a diamond and moissanite tester I have a collection of moissanite and natural diamonds. I have a small problem as two of the moissanties repeatedly test as diamonds while the other moissanites test as moissanite and the certified diamond as diamonds.I have done the testing using the certified diamonds and identified moissanites as controls at least 10 times with the same result.What I doing wrong how reliable is the tester it is so messing with my head.

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Diamond quality and value

Dear Sir,

I recently started looking for an engagement ring and have come across a number of diamonds, one that stood out was a diamond with the following details;

Shape – BR
Cut – Excellent
Clarity – VVS2
Color – G
Symmetry – Excellent
Girdle – Thin-Thin
Fluorescence – Medium
Carat – 1.04

The price of this is $11,160 ex. taxes.

Is this a quality diamond within the price?


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Diamond Ring

I have a nice diamond ring that has nothing engraved on it but only the initials RSC. So can you tell me is the ring real?

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I need to know If these holes under these diamonds mean the diamond real

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I was wondering, what does the numbers mean on diamond rings such as H-I, J-K, I-J etc: and the numbers like 11-12 or 12-14 clarity all mean. Thanks

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expected resale value of a loose Leo Diamond

I am interested in an expected resale value of a loose diamond. It is a Leo Diamond and it does have an I.G.I. Cert. Of Authenticity. The following is a list of the details of that C.O.A. :Shape/Cut. LEO/Round Billiant
Measurement: 4.85-4.93 x 3.06 MM.
Weight: 0.46 CT(S)
Color: Near Colorless(H)
Clarity: S1(2)
Polish/Symmetry: GOOD/GOOD
Treatment: None
White Light Brilliance: High
Color Light fire: Very High
Scintillation: Very High
Thank You….Darla Gates

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Engagement ring

I got an engagement ring from a reputable jeweler. I was told it was real but the more research I do the more I am certain it is not a real diamond. The reason I think it is fake is because the edges aren’t crisp. They are foggy and rough. It is mounted so I can’t see through the bottom but I can see through the side. Is it possible for it to be real?

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hello my dream to become diamond cutters in my life .i will do anything to become diamond cutters

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Lannyte Diamond – Another Question

I appreciate you have already answered a question on the Lannyte Diamond. However I have read on a number of Gemology forums that their diamond simulant is considered to be an expensive type of CZ. Their website however states:

“Lannyte vs. CZ : CZ’s are much softer than Lannyte Diamonds and scratch and chip easily. The chemical composition of a CZ becomes milky and cloudy in a short period of time. In an attempt to imitate a diamond or Lannyte Diamond, CZ’s are usually faceted, however, due to the way cz are manufactured and cut, they are very inexpensive and short lived stones.”

I cannot find any information on the Mohs hardness of a Lannyte diamond and I would like to purchase one but do not want to be paying over the odds for a type of CZ.

Thank you


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My stone

I have a flawless stone that passes all the tests of a genuine diamond. I went to a jeweler that told me it wasn’t, he then used a mineral tat looked like a black diamond chip and put a scratch, by filing back and forth, handed it back said it was fake, it passed the torch and water test. I even placed it in a cloth an then placed it on my car hitting it with a hammer. The stone did not chip, scratch, or break, but however it did indent the steel frame of the car (my wife is not happy). I received the stone from a family member that passed away, I have been told it’s not anything listed, and it is not likely I have a fake stone, they just don’t know what it is. I’m ok if it’s not a diamond but it doesn’t add up that no one can label this stone (cut into round brilliance) 2 carat.

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Diamond Cost – Geography/Currency


First and foremost I must thank you for your amazing book ‘How to Buy a Diamond’. I read a lot of books but this has been amazing.

I am a commercial property surveyor/valuer/Investment Agent by trade so to understand the value of diamonds and the industry was a must for me before walking into a jewellers and making such an important purchase.

My fiancé is from Colombia and my ethnic background is from Greece – both cultures are under the firm believe that Jewellery is cheaper in their respective countries. How can this really be as I do not think this is really possible? If this is really the case then the exchange rate will also play a big role here?

Also – I live in London – I have your latest edition of the book – how can I accurately use your guide prices?

Is this simply a matter of converting it into British Pounds at the current exchange rate?

Also is there a British equivalent institution of Rappaport?

I look forward to hearing from you.


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How can I tell if my stones are real and I have a big blue colored stone I’d like to know a little about. Its close to a deep royal blue

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Tried to sell diamond

I have an old diamond I want to sell, was appraised in 1983 for $34,000. 3.5 cts,solitaire in 14 ct white gold setting, old mine cut,guage cut32.5×19, vvs2. recently tried to sell and was told theres a chip and was only offered $4600. Does this sound plausable to you? I didnt sell!!

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My diamond was stolen. I am back in the shopping business and extremely hurt and frustrated.

I’m trying to get the best deal because my diamond meant the world to me. It was a E color, VVS1 clarity, 1.02 CTW diamond with side stones .39 total weight (G, SI1) no fluorescence, excellent cut. We paid $7,100. It was white gold, but the prong became loose after 2 years. I just want to replace the diamond and get a better deal than we did in 2011. Please help me decide the best deal.

I’m currently looking at a D color, sI1 clarity, 1.05 ctw single diamond. It is priced at $8,551. That’s way too high, isn’t it?

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