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Round|Natural|GIA

2.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1568303599

Certificate GIA 1568303599

Diamond specifications and retailer prices

From £7,615 GBP
As of November 5, 2026
Save £6,886 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £14,501 GBP at With Clarity · As of November 4, 2026
View at With Clarity

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1568303599. Listed at 11 retailers as of November 4, 2026, with prices from £7,615 to £14,501, a £6,886 spread on the same certified stone. With Clarity lists it at £14,501. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1568303599
Dimensions8.63 × 8.59 × 5.40 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.63 mm8.59 mm2.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568303599
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NDepth 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 5
Current: £10,249 GBP|Low: £7,573 GBP|High: £14,211 GBP|Avg: £9,768 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 5, 2026
Retailer 3£7,615 GBP
Retailer 2£8,093 GBP
Retailer 4£8,693 GBP
Retailer 8£8,742 GBP
Retailer 10£8,781 GBP
Retailer 6£8,944 GBP
Retailer 1£10,249 GBP
Retailer 9£10,255 GBP
Retailer 5£10,331 GBP
Retailer 7£10,684 GBP
With Clarity£14,211 GBP

26 data points across 11 retailers

11 retailers£7,615 GBP to £14,501 GBP

A
Cheapest Retailer
-
£7,615 GBP
A
Retailer 2
-
£8,093 GBP
View
A
Retailer 3
-
£8,693 GBP
View
A
Retailer 4
-
£8,742 GBP
View
A
Retailer 5
-
£8,781 GBP
View
A
Retailer 6
-
£8,944 GBP
View
B+
Retailer 7
-
£10,249 GBP
View
B+
Retailer 8
-
£10,255 GBP
View
B+
Retailer 9
-
£10,331 GBP
View
B+
Retailer 10
-
£10,684 GBP
View
Most Expensive
B
With Clarity
1568303599 · Nov 4
£14,501 GBP
$19,517 USD
View
10 more retailers have this diamond
Prices start from £7,615 GBPSave up to £6,886 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
£7,615 GBP