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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2538690845

Certificate GIA 2538690845

Diamond specifications and retailer prices

From £12,508 GBP
$16,760 USD
As of October 25, 2026
Save £9,405 GBP (43%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £21,913 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2538690845. Listed at 17 retailers as of October 25, 2026, with prices from £12,508 to £21,913, a £9,405 spread on the same certified stone. MOH London lists it at £21,913. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2538690845
Dimensions8.64 × 8.57 × 5.44 mm
L/W Ratio1.01
Top View
8.64 mm8.57 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2538690845
Side View
Table 56.0%Crown 36.5°Girdle: ThickPavilion 41°Culet: NoneDepth 63.3%

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: Oct 25
Current: £21,913 GBP|Low: £12,508 GBP|High: £22,059 GBP|Avg: £15,707 GBP|-0.7%
MOH London
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
October 30, 2026
Retailer 12£12,508 GBP
Retailer 4£12,636 GBP
Retailer 5£12,830 GBP
Retailer 15£13,956 GBP
Retailer 11£14,262 GBP
Retailer 17£14,654 GBP
Retailer 3£14,910 GBP
Retailer 13£15,119 GBP
Retailer 6£15,359 GBP
Retailer 16£15,701 GBP
Retailer 8£15,837 GBP
Retailer 9£15,837 GBP
Retailer 7£16,367 GBP
Retailer 10£16,934 GBP
Retailer 2£17,217 GBP
Retailer 14£19,771 GBP
MOH London£21,913 GBP

23 data points across 17 retailers

17 retailers£12,508 GBP to £21,913 GBP

A
Cheapest Retailer
-
£12,508 GBP
$16,760 USD
A
Retailer 2
-
£12,636 GBP
$16,931 USD
View
A
Retailer 3
-
£12,830 GBP
$17,191 USD
View
B+
Retailer 4
-
£13,956 GBP
$18,700 USD
View
A
Retailer 5
-
£14,262 GBP
View
B+
Retailer 6
-
£14,654 GBP
$19,635 USD
View
B+
Retailer 7
-
£14,910 GBP
$19,978 USD
View
B+
Retailer 8
-
£15,119 GBP
$20,258 USD
View
B+
Retailer 9
-
£15,359 GBP
$20,580 USD
View
B+
Retailer 10
-
£15,701 GBP
$21,037 USD
View
B+
Retailer 11
-
£15,837 GBP
$21,220 USD
View
B+
Retailer 12
-
£15,837 GBP
$21,220 USD
View
B+
Retailer 13
-
£16,367 GBP
$21,930 USD
View
B+
Retailer 14
-
£16,934 GBP
€21,609 EUR
View
B+
Retailer 15
-
£17,217 GBP
View
B
Retailer 16
-
£19,771 GBP
$26,491 USD
View
Most Expensive
B
MOH London
7FD33A44B · Oct 29
£21,913 GBP
View
16 more retailers have this diamond
Prices start from £12,508 GBPSave up to £9,405 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
£12,508 GBP