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2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 782657587

Shape and cutting style on the report: Round brilliant

Certificate IGI 782657587

Diamond specifications and retailer prices

From £7,440 GBP
₹949,409 INR
As of October 30, 2026
Save £6,695 GBP (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £14,135 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 782657587. Listed at 10 retailers as of October 30, 2026, with prices from £7,440 to £14,135, a £6,695 spread on the same certified stone. NZ Jewellers lists it at £14,135. 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

2.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 782657587
Dimensions8.60 × 8.71 × 5.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.60 mm8.71 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 782657587
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £14,135 GBP|Low: £7,412 GBP|High: £14,135 GBP|Avg: £10,671 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3£7,440 GBP
Retailer 6£8,971 GBP
Retailer 4£9,787 GBP
Retailer 7£9,985 GBP
Retailer 8£10,142 GBP
Retailer 2£10,231 GBP
Retailer 5£13,316 GBP
NZ Jewellers£14,135 GBP

44 data points across 8 retailers

10 retailers£7,440 GBP to £14,135 GBP

A
Cheapest Retailer
-
£7,440 GBP
₹949,409 INR
A
Retailer 2
-
£8,971 GBP
$12,020 USD
View
Final sale: no returns
A
Retailer 3
-
£9,787 GBP
View
A
Retailer 4
-
£9,985 GBP
$13,379 USD
View
A
Retailer 5
-
£10,142 GBP
$13,589 USD
View
A
Retailer 6
-
£10,231 GBP
€13,055 EUR
View
A
Retailer 7
-
£10,389 GBP
$13,921 USD
View
A
Retailer 8
-
£10,531 GBP
$14,111 USD
View
B+
Retailer 9
-
£13,316 GBP
View
Most Expensive
B+
NZ Jewellers
d855b935-a21d-4933-aa46-cf53e3c11b8f · Oct 30
£14,135 GBP
$18,939 USD
View
9 more retailers have this diamond
Prices start from £7,440 GBPSave up to £6,695 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
2.51ct Round
£7,440 GBP