Round|Natural|GIA

4.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5222151906

Certificate GIA 5222151906

Diamond specifications and retailer prices

From $37,870 USD
As of November 1, 2026
Save $29,671 USD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $67,541 USD 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 $37,870 to $67,541, a $29,671 spread on the same certified stone. MOH London lists it at $67,541. 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
Color
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: $67,541 USD|Low: $37,870 USD|High: $68,539 USD|Avg: $47,762 USD|-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$37,870 USD
Retailer 10$39,298 USD
Retailer 6$42,948 USD
Retailer 13$43,424 USD
Retailer 9$43,724 USD
Retailer 5$45,170 USD
Retailer 12$45,170 USD
Retailer 11$45,621 USD
Retailer 3$46,977 USD
Retailer 4$48,783 USD
Retailer 7$52,273 USD
Retailer 2$53,964 USD
MOH London$67,541 USD

42 data points across 13 retailers

14 retailers$37,870 USD to $67,541 USD

B+
Cheapest Retailer
-
$37,870 USD
B+
Retailer 2
-
$39,298 USD
View
B+
Retailer 3
-
$42,035 USD
View
B+
Retailer 4
-
$42,948 USD
View
Retailer 5
-
$43,363 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$43,424 USD
View
Retailer 7
-
$43,724 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$45,170 USD
View
B
Retailer 9
-
$45,170 USD
View
B
Retailer 10
-
$46,977 USD
View
B
Retailer 11
-
$48,783 USD
View
B
Retailer 12
-
$52,273 USD
View
B
Retailer 13
-
$53,964 USD
View
Most Expensive
B
MOH London
2E1DA9314 · Nov 4
$67,541 USD
£53,182 GBP
View
13 more retailers have this diamond
Prices start from $37,870 USDSave up to $29,671 USD

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
$37,870 USD