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Round|Natural|GIA

2.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5241077354

Certificate GIA 5241077354

Diamond specifications and retailer prices

From £9,115 GBP
As of November 4, 2026
Save £5,708 GBP (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £14,823 GBP at NZ Jewellers · As of November 2, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5241077354. Listed at 8 retailers as of November 2, 2026, with prices from £9,115 to £14,823, a £5,708 spread on the same certified stone. NZ Jewellers lists it at £14,823. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5241077354
Dimensions8.57 × 8.62 × 5.39 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Knot, Cavity, Cloud, Pinpoint
Top View
8.57 mm8.62 mm2.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241077354
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: £14,823 GBP|Low: £9,115 GBP|High: £15,291 GBP|Avg: £12,058 GBP|-3.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8£9,115 GBP
Retailer 5£10,472 GBP
Retailer 6£10,541 GBP
Retailer 7£10,636 GBP
Retailer 2£12,188 GBP
Retailer 3£12,703 GBP
Retailer 4£13,890 GBP
NZ Jewellers£14,823 GBP

41 data points across 8 retailers

8 retailers£9,115 GBP to £14,823 GBP

A
Cheapest Retailer
-
£9,115 GBP
B+
Retailer 2
-
£10,472 GBP
View
B+
Retailer 3
-
£10,541 GBP
View
B+
Retailer 4
-
£10,636 GBP
View
B+
Retailer 5
-
£12,188 GBP
View
B
Retailer 6
-
£12,703 GBP
View
B
Retailer 7
-
£13,890 GBP
View
Most Expensive
B
NZ Jewellers
8ccd8710-fc5c-49f2-af21-3f1a8450c1bf · Nov 2
£14,823 GBP
$19,951 USD
View
7 more retailers have this diamond
Prices start from £9,115 GBPSave up to £5,708 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
£9,115 GBP