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Round|Natural|IGI

2.50ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 761525700

Shape and cutting style on the report: Round brilliant

Certificate IGI 761525700

Diamond specifications and retailer prices

From £4,150 GBP
$5,526 USD
As of October 30, 2026
Save £2,898 GBP (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £8,855 GBP at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 761525700. Listed at 12 retailers as of October 29, 2026, with a 70% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 761525700
Dimensions8.57 × 8.65 × 5.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
8.57 mm8.65 mm2.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 761525700
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.0%

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: £10,108 GBP|Low: £4,150 GBP|High: £10,108 GBP|Avg: £6,579 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
October 30, 2026
Retailer 2£4,150 GBP
Retailer 8£4,266 GBP
Retailer 6£4,877 GBP
Retailer 9£5,191 GBP
Retailer 4£5,299 GBP
Retailer 10£5,309 GBP
Retailer 5£6,044 GBP
Retailer 13£6,442 GBP
Retailer 3£6,625 GBP
Retailer 7£7,048 GBP
Retailer 11£8,632 GBP
Retailer 12£8,654 GBP
NZ Jewellers£10,108 GBP

28 data points across 13 retailers

12 retailers£4,150 GBP to £7,048 GBP

A
Cheapest Retailer
-
£4,150 GBP
$5,526 USD
A
Retailer 2
-
£4,266 GBP
$5,681 USD
View
A
Retailer 3
-
£4,877 GBP
$6,494 USD
View
A
Retailer 4
-
£5,191 GBP
€6,584 EUR
View
Retailer 5
-
£5,294 GBP
$7,050 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£5,309 GBP
$7,070 USD
View
Price last confirmed 30 days ago
Retailer 7
-
£5,376 GBP
$7,159 USD
View
Price last confirmed 30 days ago
Retailer 8
-
£6,109 GBP
$8,135 USD
View
Price last confirmed 30 days ago
Retailer 9
-
£6,625 GBP
$8,822 USD
View
Price last confirmed 62 days ago
A
Retailer 10
-
£7,048 GBP
View
Retailer 11
-
£8,632 GBP
$11,495 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
ad8e0997-2679-43f7-b4e6-e3dc7cd08e27 · Sep 26
£8,855 GBP
$11,792 USD
View
Price last confirmed 33 days ago
11 more retailers have this diamond
Prices start from £4,150 GBPSave up to £2,898 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
2.50ct Round
£4,150 GBP