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Round|Natural|GIA

3.39ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2498037366

Certificate GIA 2498037366

Diamond specifications and retailer prices

From £18,646 GBP
As of November 4, 2026
Save £9,970 GBP (35%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £28,616 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.39ct natural round diamond

This 3.39ct 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 2498037366. Listed at 18 retailers as of November 4, 2026, with prices from £18,646 to £28,616, a £9,970 spread on the same certified stone. MOH London lists it at £28,616. 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

3.39
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2498037366
Dimensions9.81 × 9.85 × 5.81 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
9.81 mm9.85 mm3.39 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2498037366
Side View
Table 61.0%Crown 33°Girdle: MediumPavilion 41.2°Culet: NoneDepth 59.1%

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: £28,616 GBP|Low: £15,735 GBP|High: £30,010 GBP|Avg: £21,197 GBP|+2.1%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 6£18,646 GBP
Retailer 15£18,884 GBP
Retailer 7£19,012 GBP
Retailer 2£20,099 GBP
Retailer 14£20,172 GBP
Retailer 8£20,757 GBP
Retailer 4£21,634 GBP
Retailer 5£21,777 GBP
Retailer 12£22,118 GBP
Retailer 16£22,469 GBP
Retailer 13£22,565 GBP
Retailer 11£23,103 GBP
Retailer 10£23,156 GBP
Retailer 9£23,652 GBP
Retailer 3£26,027 GBP
MOH London£28,616 GBP

33 data points across 16 retailers

18 retailers£18,646 GBP to £28,616 GBP

B+
Cheapest Retailer
-
£18,646 GBP
B+
Retailer 2
-
£18,884 GBP
View
Retailer 3
-
£19,012 GBP
View
Price last confirmed 12 days ago
B+
Retailer 4
-
£19,937 GBP
View
B+
Retailer 5
-
£20,099 GBP
View
B+
Retailer 6
-
£20,172 GBP
View
B+
Retailer 7
-
£21,634 GBP
View
Retailer 8
-
£21,634 GBP
View
Price last confirmed 23 days ago
Retailer 9
-
£21,634 GBP
View
Price last confirmed 37 days ago
B+
Retailer 10
-
£21,777 GBP
View
B+
Retailer 11
-
£22,118 GBP
View
B
Retailer 12
-
£22,469 GBP
View
B
Retailer 13
-
£22,565 GBP
View
B
Retailer 14
-
£23,103 GBP
View
B
Retailer 15
-
£23,156 GBP
View
B
Retailer 16
-
£23,652 GBP
View
B
Retailer 17
-
£26,027 GBP
View
Most Expensive
B
MOH London
9CD088A14 · Nov 4
£28,616 GBP
View
17 more retailers have this diamond
Prices start from £18,646 GBPSave up to £9,970 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+
3.39ct Round
£18,646 GBP