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Round|Natural|IGI

2.50ct K IF Round Natural Diamond

EX • K/IF • IGI 581306178

Shape and cutting style on the report: Round brilliant

Certificate IGI 581306178

Diamond specifications and retailer prices

From £8,006 GBP
As of November 1, 2026
Save £5,214 GBP (39%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £13,220 GBP at NZ Jewellers · As of November 5, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 581306178. Listed at 18 retailers as of November 1, 2026, with prices from £8,006 to £13,220, a £5,214 spread on the same certified stone. NZ Jewellers lists it at £13,220. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.50
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 581306178
Dimensions8.57 × 8.50 × 5.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.57 mm8.50 mm2.50 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 581306178
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
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: Nov 1
Current: £13,220 GBP|Low: £6,659 GBP|High: £13,220 GBP|Avg: £9,011 GBP|+8.6%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 7£6,659 GBP
Retailer 9£7,865 GBP
Retailer 16£8,006 GBP
Retailer 10£8,065 GBP
Retailer 6£8,124 GBP
Retailer 17£8,181 GBP
Retailer 12£8,498 GBP
Retailer 4£8,626 GBP
Retailer 8£8,842 GBP
Retailer 3£9,408 GBP
Retailer 18£9,485 GBP
Retailer 15£9,631 GBP
Retailer 13£9,929 GBP
Retailer 2£10,016 GBP
Retailer 11£10,891 GBP
Retailer 5£10,944 GBP
Retailer 14£12,354 GBP
NZ Jewellers£13,220 GBP

27 data points across 18 retailers

18 retailers£8,006 GBP to £13,220 GBP

Retailer 1
-
£6,659 GBP
Price last confirmed 15 days ago
Retailer 2
-
£7,865 GBP
View
Price last confirmed 10 days ago
A
Retailer 3
-
£8,006 GBP
View
Retailer 4
-
£8,065 GBP
View
Price last confirmed 25 days ago
A
Retailer 5
-
£8,124 GBP
View
A
Retailer 6
-
£8,181 GBP
View
A
Retailer 7
-
£8,498 GBP
View
A
Retailer 8
-
£8,626 GBP
View
Retailer 9
-
£8,842 GBP
View
Price last confirmed 23 days ago
A
Retailer 10
-
£9,408 GBP
View
A
Retailer 11
-
£9,485 GBP
View
A
Retailer 12
-
£9,631 GBP
View
A
Retailer 13
-
£9,929 GBP
View
A
Retailer 14
-
£10,016 GBP
View
B+
Retailer 15
-
£10,891 GBP
View
A
Retailer 16
-
£10,944 GBP
View
B+
Retailer 17
-
£12,354 GBP
View
Most Expensive
B+
NZ Jewellers
f0009b4b-5cb1-4889-9247-c138f78a67ad · Nov 5
£13,220 GBP
$17,793 USD
View
17 more retailers have this diamond
Prices start from £8,006 GBPSave up to £5,214 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
£8,006 GBP