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2.10ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 731581885

Shape and cutting style on the report: Round brilliant

Certificate IGI 731581885

Diamond specifications and retailer prices

From £5,242 GBP
As of November 4, 2026
Save £4,902 GBP (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £10,143 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.1ct natural round diamond

This 2.1ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 731581885. Listed at 13 retailers as of November 4, 2026, with prices from £5,242 to £10,143, a £4,902 spread on the same certified stone. NZ Jewellers lists it at £10,143. 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

2.10
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 731581885
Dimensions8.26 × 8.21 × 5.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.26 mm8.21 mm2.10 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 731581885
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.2%

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 4
Current: £5,668 GBP|Low: £5,242 GBP|High: £8,354 GBP|Avg: £6,266 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£5,242 GBP
Retailer 7£5,584 GBP
Retailer 1£5,668 GBP
Retailer 4£5,703 GBP
Retailer 8£6,158 GBP
Retailer 2£6,243 GBP
Retailer 3£6,963 GBP
Retailer 5£8,232 GBP

40 data points across 8 retailers

13 retailers£5,242 GBP to £10,143 GBP

A
Cheapest Retailer
-
£5,242 GBP
A
Retailer 2
-
£5,584 GBP
View
Retailer 3
-
£5,598 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£5,668 GBP
View
A
Retailer 5
-
£5,703 GBP
View
B+
Retailer 6
-
£6,064 GBP
View
B+
Retailer 7
-
£6,158 GBP
View
B+
Retailer 8
-
£6,193 GBP
View
B+
Retailer 9
-
£6,243 GBP
View
B+
Retailer 10
-
£6,963 GBP
View
B+
Retailer 11
-
£6,997 GBP
View
B
Retailer 12
-
£8,232 GBP
View
Most Expensive
B
NZ Jewellers
bd0dc02f-bb55-4897-9f7b-387aad5f15dd · Nov 5
£10,143 GBP
$13,652 USD
View
12 more retailers have this diamond
Prices start from £5,242 GBPSave up to £4,902 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
2.10ct Round
£5,242 GBP