Round|Natural|GIA
20.70ct H IF Round Natural Diamond
EX • H/IF
Diamond specifications and retailer prices
This diamond has been sold
Last seen: Jul 15, 2026 at £1,175,180 GBP
£1,175,180 GBPlast known price
About this 20.7ct natural round diamond
This 20.7ct natural round sits in the over five carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.
The 4Cs
20.70
Carat
H
Colour
IF
Clarity
Excellent
Cut
Specifications
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions17.82 × 17.76 × 10.76 mm
L/W Ratio1.00
Top View
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Caratlytics Score
Historical Listings
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