Round|Natural|GIA
13.03ct F SI1 Round Natural Diamond
EX • F/SI1 • GIA 1236889181
Certificate GIA 1236889181
Diamond specifications and retailer prices
From $430,887 USD
A$662,903 AUD
As of October 4, 2026
6 retailers carry this diamond
Most expensive: $574,901 USD at Aurelinne · As of October 9, 2026
About this 13.03ct natural round diamond
This 13.03ct natural round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236889181. Listed at 6 retailers as of October 4, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.
The 4Cs
13.03
Carat
F
Color
SI1
Clarity
Excellent
Cut
Specifications
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1236889181
Dimensions15.15 × 15.07 × 9.38 mm
L/W Ratio1.01
Top View
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1236889181
Side View
Caratlytics Score
No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.
6 retailers
Retailer 1
$430,887 USD
A$662,903 AUD
Price last confirmed 29 days ago
Retailer 2
$438,985 USD
Price last confirmed 15 days ago
Retailer 3
$532,315 USD
Price last confirmed 18 days ago
Retailer 4
$552,287 USD
ZAR 8,922,249 ZAR
Price last confirmed 15 days ago
Retailer 5
$553,608 USD
Price last confirmed 25 days ago
5 more retailers have this diamond
Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.