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Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6565159898

Certificate GIA 6565159898

Diamond specifications and retailer prices

From £20,766 GBP
$27,824 USD
As of October 24, 2026
Save £15,471 GBP (43%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £36,237 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565159898. Listed at 17 retailers as of October 24, 2026, with prices from £20,766 to £36,237, a £15,471 spread on the same certified stone. MOH London lists it at £36,237. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565159898
Dimensions8.64 × 8.61 × 5.45 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.64 mm8.61 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565159898
Side View
Table 57.0%CrownGirdle: THN-STKPavilionCulet: 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 24
Current: £36,237 GBP|Low: £20,282 GBP|High: £52,008 GBP|Avg: £25,957 GBP|-30.3%
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
Retailer 16
Retailer 17
October 25, 2026
Retailer 15£20,282 GBP
Retailer 6£20,766 GBP
Retailer 5£21,097 GBP
Retailer 4£22,517 GBP
Retailer 9£22,820 GBP
Retailer 11£23,171 GBP
Retailer 17£23,426 GBP
Retailer 2£23,553 GBP
Retailer 16£24,137 GBP
Retailer 14£24,330 GBP
Retailer 7£24,774 GBP
Retailer 3£25,103 GBP
Retailer 10£25,215 GBP
Retailer 8£26,068 GBP
Retailer 12£27,953 GBP
Retailer 13£31,421 GBP
MOH London£36,237 GBP

28 data points across 17 retailers

17 retailers£20,766 GBP to £36,237 GBP

Retailer 1
-
£20,282 GBP
$27,175 USD
Price last confirmed 10 days ago
A
Retailer 2
-
£20,766 GBP
$27,824 USD
View
Retailer 3
-
£21,097 GBP
$28,267 USD
View
Price last confirmed 7 days ago
Retailer 4
-
£22,517 GBP
$30,170 USD
View
Price last confirmed 5 days ago
Retailer 5
-
£22,820 GBP
A$47,041 AUD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
£23,171 GBP
$31,047 USD
View
B+
Retailer 7
-
£23,426 GBP
$31,388 USD
View
B+
Retailer 8
-
£23,553 GBP
View
Retailer 9
-
£24,137 GBP
$32,341 USD
View
Price last confirmed 7 days ago
Retailer 10
-
£24,330 GBP
$32,600 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£24,774 GBP
$33,195 USD
View
Retailer 12
-
£25,103 GBP
$33,635 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£25,215 GBP
View
Price last confirmed 7 days ago
Retailer 14
-
£26,068 GBP
$34,928 USD
View
Price last confirmed 7 days ago
Retailer 15
-
£27,953 GBP
€35,670 EUR
View
Price last confirmed 7 days ago
Retailer 16
-
£31,421 GBP
ZAR 680,146 ZAR
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
2D437B153 · Oct 25
£36,237 GBP
View
16 more retailers have this diamond
Prices start from £20,766 GBPSave up to £15,471 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
£20,766 GBP