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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6545373534

Certificate GIA 6545373534

Diamond specifications and retailer prices

From £12,794 GBP
$17,142 USD
As of October 27, 2026
Save £9,120 GBP (42%) vs most expensive(unlock to see where)
21 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 6545373534. Listed at 21 retailers as of October 27, 2026, with prices from £12,794 to £21,913, a £9,120 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 angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545373534
Dimensions8.58 × 8.63 × 5.43 mm
L/W Ratio1.01
Top View
8.58 mm8.63 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545373534
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.1%

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 27
Current: £21,913 GBP|Low: £11,206 GBP|High: £22,059 GBP|Avg: £14,899 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
Retailer 18
October 30, 2026
Retailer 7£12,794 GBP
Retailer 6£12,830 GBP
Retailer 3£12,909 GBP
Retailer 2£13,306 GBP
Retailer 18£13,374 GBP
Retailer 14£13,447 GBP
Retailer 13£14,198 GBP
Retailer 8£14,202 GBP
Retailer 16£14,456 GBP
Retailer 5£14,910 GBP
Retailer 9£15,322 GBP
Retailer 17£15,322 GBP
Retailer 4£15,830 GBP
Retailer 10£15,885 GBP
Retailer 15£16,764 GBP
Retailer 12£16,781 GBP
Retailer 11£17,217 GBP
MOH London£21,913 GBP

29 data points across 18 retailers

21 retailers£12,794 GBP to £21,913 GBP

A
Cheapest Retailer
-
£12,794 GBP
$17,142 USD
A
Retailer 2
-
£12,830 GBP
$17,191 USD
View
A
Retailer 3
-
£12,909 GBP
$17,297 USD
View
A
Retailer 4
-
£13,306 GBP
₹1,697,899 INR
View
A
Retailer 5
-
£13,374 GBP
$17,920 USD
View
Final sale: no returns
A
Retailer 6
-
£13,447 GBP
$18,018 USD
View
A
Retailer 7
-
£14,198 GBP
View
B+
Retailer 8
-
£14,202 GBP
$19,030 USD
View
Retailer 9
-
£14,456 GBP
$19,369 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£14,877 GBP
$19,934 USD
View
B+
Retailer 11
-
£14,910 GBP
$19,978 USD
View
Retailer 12
-
£15,314 GBP
$20,519 USD
View
Price last confirmed 36 days ago
B+
Retailer 13
-
£15,322 GBP
$20,530 USD
View
B+
Retailer 14
-
£15,322 GBP
$20,530 USD
View
B+
Retailer 15
-
£15,830 GBP
$21,210 USD
View
Retailer 16
-
£15,885 GBP
$21,284 USD
View
Price last confirmed 16 days ago
Retailer 17
-
£15,903 GBP
$21,308 USD
View
Price last confirmed 37 days ago
B+
Retailer 18
-
£16,764 GBP
$22,462 USD
View
B+
Retailer 19
-
£16,781 GBP
€21,414 EUR
View
B+
Retailer 20
-
£17,217 GBP
View
Most Expensive
B
MOH London
F362CC09F · Oct 29
£21,913 GBP
View
20 more retailers have this diamond
Prices start from £12,794 GBPSave up to £9,120 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
£12,794 GBP