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0.64 carat natural Round diamond, I SI2, GIA certified, face-up
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GIA report

2497609994

FieldValue
ShapeRound
Carat weight0.64
Color / ClarityI / SI2
CutExcellent
Polish / SymmetryExcellent / Excellent
FluorescenceFaint
Measurements5.50 × 5.45 × 3.41 mm
Verify on GIA
Actual size

Face-up size

5.50 × 5.45 mm outline, compared with a round brilliant (approx. diameters).
0mm 5mm 10mm 15mm 20mm approx. 5.1 mm round approx. 6.5 mm round approx. 8.2 mm round
Stock #GDN900041 · GIA 2497609994

Natural Round Diamond Specifications

Grading: color, clarity and cut

ShapeRound
Carat weight0.64
ColorI
ClaritySI2
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint

Measurements in mm

Length5.50 mm
Width5.45 mm
Depth3.41 mm
L/W ratio1.01
OriginNatural

GIA certificate

LabGIA
Report #2497609994
OriginNatural diamond

Check the full report, including plotted clarity characteristics, on GIA's website.

Verify on GIA
From the GIA report

Natural Round Face-Up Size, Drawn to Scale

Face-up outline, true mm scale

0mm 5mm 10mm 15mm 20mm 25mm 30mm 35mm This diamond 0.5ct round 1ct round 2ct round

Drawn at true mm scale. Round diameters are approximate.

Measurements

Length5.50 mm
Width5.45 mm
Depth3.41 mm
L/W ratio1.01
CutExcellent
PolishExcellent
SymmetryExcellent
Need table, depth or angles? See the full GIA report.
Shape guide

About natural Round diamonds

Also called the round brilliant. The round brilliant is the most popular diamond shape, cut with 57–58 facets for maximum brilliance and fire. This one measures 5.50 × 5.45 mm face-up.

Custom & matching

Need it matched or set?

Set this natural diamond in a custom piece, or send a spec and we'll source it.

  • 24-hour CAD · 4–6 working days to finished
  • Gold (14K/18K), silver, platinum · No MOQ
Shipping & offices

Shipping for the trade

US shippingSame day before 6 PM ET
International3–4 business days
Minimum orderNo MOQ
OfficesNYC Diamond District · Los Angeles
Natural only · closest in size · hovertap to rotate

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Trade questions

Buying Natural Round Diamonds Wholesale: FAQ

How big is a 0.64 carat natural Round?

This 0.64 carat Round measures 5.50 × 5.45 mm face-up and 3.41 mm deep. Shapes and cuts carry their weight differently, so compare diamonds by their mm size, not only by carat.

How fast does this diamond ship?

Orders placed before 6 PM ET ship the same day. International delivery takes 3–4 business days.

Is the certificate real, and can I check it?

Yes. This diamond carries GIA report 2497609994, and you can verify it on GIA's website. For how grading works, see GIA's guide to diamond quality factors.

How do I see the price?

Prices are shown to trade accounts only. Guru Diam sells to jewelers, retailers, designers and manufacturers. Applications submitted before 4 PM ET are approved the same business day, otherwise the next business day.

Is this a natural diamond?

Yes. It is a natural diamond graded by GIA under report 2497609994. Natural diamonds are listed on their own pages and never mixed with other diamonds in our listings; for disclosure rules when you resell, see the FTC's jewelry business guidance.

Wholesale for the trade

Natural Round Diamonds, Wholesale

Guru Diam is a B2B diamond supplier on 47th Street in the NYC Diamond District and in the Los Angeles diamond district, selling natural diamonds wholesale to jewelers, retailers, designers and manufacturers. Our natural round diamonds are certified natural diamonds, each with its own report you can verify.

This natural diamond is a 0.64 carat Round measuring 5.50 x 5.45 mm, I SI2. Browse all certified natural diamonds. Natural diamonds are sold to the trade only: open a trade account, or learn more about Guru Diam.

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