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2.50ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 670479676

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479676

Diamond specifications and retailer prices

From £5,467 GBP
As of November 4, 2026
Save £1,797 GBP (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £7,264 GBP at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479676. Listed at 6 retailers as of November 4, 2026, with prices from £5,467 to £7,264, a £1,797 spread on the same certified stone. Cape Diamonds lists it at £7,264. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 670479676
Dimensions8.53 × 8.59 × 5.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.53 mm8.59 mm2.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479676
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.6%

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: £7,264 GBP|Low: £4,051 GBP|High: £10,218 GBP|Avg: £6,519 GBP|+2.3%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8£4,051 GBP
Retailer 4£5,467 GBP
Retailer 7£5,818 GBP
Retailer 2£6,327 GBP
Retailer 5£6,462 GBP
Retailer 3£6,518 GBP
Cape Diamonds£7,264 GBP
Retailer 6£10,218 GBP

39 data points across 8 retailers

6 retailers£5,467 GBP to £7,264 GBP

A
Cheapest Retailer
-
£5,467 GBP
B+
Retailer 2
-
£5,818 GBP
View
B+
Retailer 3
-
£6,327 GBP
View
B+
Retailer 4
-
£6,462 GBP
View
B+
Retailer 5
-
£6,518 GBP
View
Most Expensive
B+
Cape Diamonds
cert_670479676 · Nov 5
£7,264 GBP
ZAR 157,937 ZAR
View
5 more retailers have this diamond
Prices start from £5,467 GBPSave up to £1,797 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
£5,467 GBP