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Round|Natural|GIA

2.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 2556633752

Certificate GIA 2556633752

Diamond specifications and retailer prices

From £7,446 GBP
As of November 4, 2026
Save £3,005 GBP (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £13,375 GBP at NZ Jewellers · As of September 18, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556633752. Listed at 7 retailers as of November 4, 2026, with a 40% 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556633752
Dimensions8.61 × 8.66 × 5.41 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal
Top View
8.61 mm8.66 mm2.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556633752
Side View
Table 60.0%Crown 34°GirdlePavilion 41.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £11,211 GBP|Low: £7,413 GBP|High: £11,211 GBP|Avg: £9,154 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£7,446 GBP
Retailer 5£7,518 GBP
Retailer 8£8,025 GBP
Retailer 6£8,694 GBP
Retailer 3£9,621 GBP
Retailer 7£10,031 GBP
Retailer 2£10,450 GBP
NZ Jewellers£11,211 GBP

34 data points across 8 retailers

7 retailers£7,446 GBP to £10,450 GBP

B+
Cheapest Retailer
-
£7,446 GBP
B+
Retailer 2
-
£7,518 GBP
View
Retailer 3
-
£8,694 GBP
View
Price last confirmed 53 days ago
B
Retailer 4
-
£9,621 GBP
View
Retailer 5
-
£10,031 GBP
View
Price last confirmed 50 days ago
B
Retailer 6
-
£10,450 GBP
View
Most Expensive
NZ Jewellers
3b4012e0-17a8-4f6b-a44b-5e0a821e4491 · Sep 18
£13,375 GBP
$18,002 USD
View
Price last confirmed 49 days ago
6 more retailers have this diamond
Prices start from £7,446 GBPSave up to £3,005 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.

B+
2.50ct Round
£7,446 GBP