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Round|Natural|GIA

2.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6545477320

Certificate GIA 6545477320

Diamond specifications and retailer prices

From £18,407 GBP
HK$191,500 HKD
As of October 25, 2026
Save £15,262 GBP (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £33,669 GBP at MOH London · As of October 25, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545477320. Listed at 11 retailers as of October 25, 2026, with prices from £18,407 to £33,669, a £15,262 spread on the same certified stone. MOH London lists it at £33,669. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545477320
Dimensions8.54 × 8.61 × 5.42 mm
L/W Ratio1.01
Top View
8.54 mm8.61 mm2.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545477320
Side View
Table 56.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 63.2%

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: £33,669 GBP|Low: £18,407 GBP|High: £36,898 GBP|Avg: £24,441 GBP|-2.3%
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
October 26, 2026
Retailer 13£18,407 GBP
Retailer 8£19,057 GBP
Retailer 11£20,295 GBP
Retailer 3£20,989 GBP
Retailer 9£21,669 GBP
Retailer 2£22,127 GBP
Retailer 12£22,626 GBP
Retailer 5£23,013 GBP
Retailer 4£23,490 GBP
Retailer 14£24,250 GBP
Retailer 15£24,353 GBP
Retailer 7£24,573 GBP
Retailer 10£25,111 GBP
MOH London£33,669 GBP
Retailer 6£36,898 GBP

16 data points across 15 retailers

11 retailers£18,407 GBP to £33,669 GBP

A
Cheapest Retailer
-
£18,407 GBP
HK$191,500 HKD
A
Retailer 2
-
£19,057 GBP
₹2,416,917 INR
View
Retailer 3
-
£20,295 GBP
$27,027 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£21,669 GBP
$28,856 USD
View
B+
Retailer 5
-
£22,127 GBP
View
B+
Retailer 6
-
£22,626 GBP
$30,130 USD
View
Retailer 7
-
£23,013 GBP
$30,646 USD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£24,250 GBP
$32,293 USD
View
B+
Retailer 9
-
£24,353 GBP
$32,430 USD
View
B+
Retailer 10
-
£25,111 GBP
€31,847 EUR
View
Most Expensive
B
MOH London
801343AB1 · Oct 25
£33,669 GBP
View
10 more retailers have this diamond
Prices start from £18,407 GBPSave up to £15,262 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
£18,407 GBP