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Round|Natural|GIA

2.51ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 7552332939

Certificate GIA 7552332939

Diamond specifications and retailer prices

From £4,049 GBP
As of November 5, 2026
Save £5,299 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £9,348 GBP at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7552332939. Listed at 12 retailers as of November 5, 2026, with prices from £4,049 to £9,348, a £5,299 spread on the same certified stone. NZ Jewellers lists it at £9,348. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7552332939
Dimensions8.75 × 8.78 × 5.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
8.75 mm8.78 mm2.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7552332939
Side View
Table 61.0%Crown 33°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 59.8%

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 5
Current: £9,348 GBP|Low: £4,049 GBP|High: £9,369 GBP|Avg: £5,761 GBP|-0.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£4,049 GBP
Retailer 9£4,874 GBP
Retailer 10£5,026 GBP
Retailer 4£5,159 GBP
Retailer 12£5,160 GBP
Retailer 11£5,589 GBP
Retailer 3£5,675 GBP
Retailer 2£5,717 GBP
Retailer 6£5,744 GBP
Retailer 5£6,418 GBP
Retailer 8£6,449 GBP
NZ Jewellers£9,348 GBP

37 data points across 12 retailers

12 retailers£4,049 GBP to £9,348 GBP

A
Cheapest Retailer
-
£4,049 GBP
B+
Retailer 2
-
£4,874 GBP
View
B+
Retailer 3
-
£5,026 GBP
View
Retailer 4
-
£5,159 GBP
View
Price last confirmed 12 days ago
B+
Retailer 5
-
£5,160 GBP
View
B+
Retailer 6
-
£5,589 GBP
View
B+
Retailer 7
-
£5,675 GBP
View
A
Retailer 8
-
£5,717 GBP
View
B+
Retailer 9
-
£5,744 GBP
View
B+
Retailer 10
-
£6,418 GBP
View
B+
Retailer 11
-
£6,449 GBP
View
Most Expensive
B
NZ Jewellers
22db8a53-e38f-43ca-a910-0a216640f3b4 · Nov 5
£9,348 GBP
$12,581 USD
View
11 more retailers have this diamond
Prices start from £4,049 GBPSave up to £5,299 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
£4,049 GBP