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2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 825619326

Shape and cutting style on the report: Round brilliant

Certificate IGI 825619326

Diamond specifications and retailer prices

From £7,436 GBP
₹948,837 INR
As of October 30, 2026
Save £6,699 GBP (47%) vs most expensive(unlock to see where)
15 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 825619326. Listed at 15 retailers as of October 30, 2026, with prices from £7,436 to £14,135, a £6,699 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 angle32°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 825619326
Dimensions8.77 × 8.82 × 5.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.77 mm8.82 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825619326
Side View
Table 57.0%Crown 32°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
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: £7,391 GBP|High: £14,135 GBP|Avg: £10,143 GBP
NZ Jewellers
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
October 30, 2026
Retailer 8£7,436 GBP
Retailer 14£8,686 GBP
Retailer 13£8,884 GBP
Retailer 5£9,361 GBP
Retailer 15£9,434 GBP
Retailer 3£9,869 GBP
Retailer 11£9,876 GBP
Retailer 10£9,975 GBP
Retailer 12£9,985 GBP
Retailer 4£10,142 GBP
Retailer 2£10,225 GBP
Retailer 6£10,389 GBP
Retailer 7£10,531 GBP
Retailer 9£13,316 GBP
NZ Jewellers£14,135 GBP

45 data points across 15 retailers

15 retailers£7,436 GBP to £14,135 GBP

A
Cheapest Retailer
-
£7,436 GBP
₹948,837 INR
A
Retailer 2
-
£8,686 GBP
$11,638 USD
View
A
Retailer 3
-
£8,884 GBP
$11,903 USD
View
A
Retailer 4
-
£9,361 GBP
$12,543 USD
View
A
Retailer 5
-
£9,434 GBP
$12,640 USD
View
A
Retailer 6
-
£9,869 GBP
$13,223 USD
View
Retailer 7
-
£9,876 GBP
View
Price last confirmed 31 days ago
A
Retailer 8
-
£9,975 GBP
$13,365 USD
View
A
Retailer 9
-
£9,985 GBP
$13,379 USD
View
A
Retailer 10
-
£10,142 GBP
$13,589 USD
View
A
Retailer 11
-
£10,225 GBP
€13,048 EUR
View
A
Retailer 12
-
£10,389 GBP
$13,921 USD
View
A
Retailer 13
-
£10,531 GBP
$14,111 USD
View
B+
Retailer 14
-
£13,316 GBP
View
Most Expensive
B+
NZ Jewellers
9948dad4-082a-42e7-8916-57c10ffb9eec · Oct 30
£14,135 GBP
$18,939 USD
View
14 more retailers have this diamond
Prices start from £7,436 GBPSave up to £6,699 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
£7,436 GBP