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Round|Natural|GIA

4.04ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6227409748

Certificate GIA 6227409748

Diamond specifications and retailer prices

From $51,402 AUD
As of November 4, 2026
Save $28,267 AUD (35%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $79,669 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 4.04ct natural round diamond

This 4.04ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6227409748. Listed at 5 retailers as of November 4, 2026, with prices from $51,402 to $79,669, a $28,267 spread on the same certified stone. MOH London lists it at $79,669. 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

4.04
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6227409748
Dimensions10.28 × 10.33 × 6.24 mm
L/W Ratio1.00
Culet sizeVery Small
Top View
10.28 mm10.33 mm4.04 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6227409748
Side View
Table 57.0%Crown 34°Girdle: ThinPavilion 41°Culet: Very SmallDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $79,669 AUD|Low: $51,402 AUD|High: $80,309 AUD|Avg: $61,483 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$51,402 AUD
Retailer 5$53,280 AUD
Retailer 3$54,762 AUD
Retailer 2$63,653 AUD
MOH London$79,669 AUD

7 data points across 5 retailers

5 retailers$51,402 AUD to $79,669 AUD

B+
Cheapest Retailer
-
$51,402 AUD
B+
Retailer 2
-
$53,280 AUD
View
B+
Retailer 3
-
$54,762 AUD
View
B+
Retailer 4
-
$63,653 AUD
View
Most Expensive
B
MOH London
E073003A1 · Nov 4
$79,669 AUD
£43,914 GBP
View
4 more retailers have this diamond
Prices start from $51,402 AUDSave up to $28,267 AUD

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.

B+
4.04ct Round
$51,402 AUD