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Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5231668055

Certificate GIA 5231668055

Diamond specifications and retailer prices

From £21,835 GBP
$29,077 USD
As of October 29, 2026
Save £16,437 GBP (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £38,272 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5231668055. Listed at 15 retailers as of October 29, 2026, with prices from £21,835 to £38,272, a £16,437 spread on the same certified stone. MOH London lists it at £38,272. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5231668055
Dimensions8.54 × 8.65 × 5.39 mm
L/W Ratio1.01
Top View
8.54 mm8.65 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231668055
Side View
Table 58.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £38,272 GBP|Low: £21,835 GBP|High: £38,527 GBP|Avg: £27,212 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
October 30, 2026
Retailer 4£21,835 GBP
Retailer 5£22,192 GBP
Retailer 3£23,677 GBP
Retailer 13£24,339 GBP
Retailer 2£24,359 GBP
Retailer 9£24,607 GBP
Retailer 6£26,062 GBP
Retailer 14£26,406 GBP
Retailer 10£28,409 GBP
Retailer 7£28,861 GBP
Retailer 12£29,045 GBP
Retailer 11£30,513 GBP
Retailer 8£33,526 GBP
MOH London£38,272 GBP

31 data points across 14 retailers

15 retailers£21,835 GBP to £38,272 GBP

B+
Cheapest Retailer
-
£21,835 GBP
$29,077 USD
B+
Retailer 2
-
£22,192 GBP
$29,553 USD
View
B+
Retailer 3
-
£23,677 GBP
$31,530 USD
View
Retailer 4
-
£24,339 GBP
A$49,863 AUD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
£24,359 GBP
View
B+
Retailer 6
-
£24,375 GBP
$32,460 USD
View
B+
Retailer 7
-
£24,607 GBP
CA$45,511 CAD
View
B+
Retailer 8
-
£26,062 GBP
$34,707 USD
View
B
Retailer 9
-
£26,406 GBP
$35,165 USD
View
B+
Retailer 10
-
£28,409 GBP
$37,832 USD
View
B+
Retailer 11
-
£28,861 GBP
€36,603 EUR
View
B+
Retailer 12
-
£29,045 GBP
$38,678 USD
View
B
Retailer 13
-
£30,513 GBP
$40,634 USD
View
B
Retailer 14
-
£33,526 GBP
ZAR 721,270 ZAR
View
Most Expensive
B
MOH London
03B2ED617 · Oct 29
£38,272 GBP
View
14 more retailers have this diamond
Prices start from £21,835 GBPSave up to £16,437 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.

B+
2.50ct Round
£21,835 GBP