Marquise|Natural|GIA
1.20ct J IF Marquise Natural Diamond
GD • J/IF
Diamond specifications and retailer prices
This diamond has been sold
Last seen: Sep 15, 2026 at $6,150 USD
$6,150 USDlast known price
About this 1.2ct natural marquise diamond
This 1.2ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.
The 4Cs
1.20
Carat
J
Colour
IF
Clarity
Good
Cut (retailer stated)
Specifications
Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions10.02 × 5.48 mm
L/W Ratio1.83
Top View
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Caratlytics Score
How it works →C
Average
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Historical Listings
C
Helzberg Diamonds
$6,150 USD
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