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Round|Natural|GIA

4.43ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6425292031

Certificate GIA 6425292031

Diamond specifications and retailer prices

From £28,193 GBP
As of November 2, 2026
Save £17,712 GBP (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £45,905 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 4.43ct natural round diamond

This 4.43ct 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 6425292031. Listed at 9 retailers as of November 2, 2026, with prices from £28,193 to £45,905, a £17,712 spread on the same certified stone. MOH London lists it at £45,905. 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

4.43
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6425292031
Dimensions10.38 × 10.44 × 6.54 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
10.38 mm10.44 mm4.43 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425292031
Side View
Table 57.0%Crown 36.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £45,905 GBP|Low: £28,193 GBP|High: £46,459 GBP|Avg: £33,088 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 9£28,193 GBP
Retailer 5£29,233 GBP
Retailer 2£29,439 GBP
Retailer 7£30,618 GBP
Retailer 6£31,151 GBP
Retailer 8£32,348 GBP
Retailer 4£34,265 GBP
Retailer 3£35,506 GBP
MOH London£45,905 GBP

36 data points across 9 retailers

9 retailers£28,193 GBP to £45,905 GBP

A
Cheapest Retailer
-
£28,193 GBP
B+
Retailer 2
-
£29,233 GBP
View
A
Retailer 3
-
£29,439 GBP
View
B+
Retailer 4
-
£30,618 GBP
View
B+
Retailer 5
-
£31,151 GBP
View
B+
Retailer 6
-
£32,348 GBP
View
Retailer 7
-
£34,265 GBP
View
Price last confirmed 11 days ago
B+
Retailer 8
-
£35,506 GBP
View
Most Expensive
B
MOH London
BB3D48751 · Nov 2
£45,905 GBP
View
8 more retailers have this diamond
Prices start from £28,193 GBPSave up to £17,712 GBP

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.

A
4.43ct Round
£28,193 GBP