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Round|Natural|GIA

4.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5222151906

Certificate GIA 5222151906

Diamond specifications and retailer prices

From $54,097 AUD
As of November 1, 2026
Save $42,385 AUD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $96,483 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 4.02ct natural round diamond

This 4.02ct 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 5222151906. Listed at 14 retailers as of November 1, 2026, with prices from $54,097 to $96,483, a $42,385 spread on the same certified stone. MOH London lists it at $96,483. 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

4.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5222151906
Dimensions10.18 × 10.11 × 6.34 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
10.18 mm10.11 mm4.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5222151906
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.5%

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 1
Current: $96,483 AUD|Low: $54,097 AUD|High: $97,908 AUD|Avg: $68,227 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8$54,097 AUD
Retailer 10$56,137 AUD
Retailer 6$61,351 AUD
Retailer 13$62,031 AUD
Retailer 9$62,460 AUD
Retailer 5$64,525 AUD
Retailer 12$64,525 AUD
Retailer 11$65,170 AUD
Retailer 3$67,107 AUD
Retailer 4$69,687 AUD
Retailer 7$74,672 AUD
Retailer 2$77,088 AUD
MOH London$96,483 AUD

42 data points across 13 retailers

14 retailers$54,097 AUD to $96,483 AUD

B+
Cheapest Retailer
-
$54,097 AUD
B+
Retailer 2
-
$56,137 AUD
View
B+
Retailer 3
-
$60,047 AUD
View
B+
Retailer 4
-
$61,351 AUD
View
Retailer 5
-
$61,944 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$62,031 AUD
View
Retailer 7
-
$62,460 AUD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$64,525 AUD
View
B
Retailer 9
-
$64,525 AUD
View
B
Retailer 10
-
$67,107 AUD
View
B
Retailer 11
-
$69,687 AUD
View
B
Retailer 12
-
$74,672 AUD
View
B
Retailer 13
-
$77,088 AUD
View
Most Expensive
B
MOH London
2E1DA9314 · Nov 4
$96,483 AUD
£53,182 GBP
View
13 more retailers have this diamond
Prices start from $54,097 AUDSave up to $42,385 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+
4.02ct Round
$54,097 AUD