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3.13ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6372649124

Certificate GIA 6372649124

Diamond specifications and retailer prices

From £19,128 GBP
As of November 1, 2026
Save £15,131 GBP (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £34,259 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.13ct natural round diamond

This 3.13ct 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 6372649124. Listed at 8 retailers as of November 1, 2026, with prices from £19,128 to £34,259, a £15,131 spread on the same certified stone. MOH London lists it at £34,259. 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

3.13
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6372649124
Dimensions9.43 × 9.37 × 5.78 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
9.43 mm9.37 mm3.13 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6372649124
Side View
Table 56.0%Crown 33°Girdle: ThickPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £34,259 GBP|Low: £19,128 GBP|High: £34,765 GBP|Avg: £23,981 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6£19,128 GBP
Retailer 5£19,741 GBP
Retailer 2£22,001 GBP
Retailer 4£22,178 GBP
Retailer 7£22,178 GBP
Retailer 3£28,513 GBP
MOH London£34,259 GBP

41 data points across 7 retailers

8 retailers£19,128 GBP to £34,259 GBP

B+
Cheapest Retailer
-
£19,128 GBP
B+
Retailer 2
-
£19,741 GBP
View
B+
Retailer 3
-
£22,001 GBP
View
Retailer 4
-
£22,178 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£22,178 GBP
View
Retailer 6
-
£22,912 GBP
View
Price last confirmed 20 days ago
B
Retailer 7
-
£28,513 GBP
View
Most Expensive
B
MOH London
2292C75EC · Nov 4
£34,259 GBP
View
7 more retailers have this diamond
Prices start from £19,128 GBPSave up to £15,131 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.

B+
3.13ct Round
£19,128 GBP