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Marquise|Natural|GIA

2.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 6541372567

Certificate GIA 6541372567

Diamond specifications and retailer prices

From £23,954 GBP
$32,096 USD
As of October 30, 2026
Save £17,192 GBP (42%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £41,147 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541372567. Listed at 22 retailers as of October 26, 2026, with prices from £23,954 to £41,147, a £17,192 spread on the same certified stone. MOH London lists it at £41,147. 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

2.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.95°
Pavilion angle38.09°
OriginNatural
Grading LabGIA
CertificateGIA 6541372567
Dimensions12.90 × 7.02 × 4.46 mm
L/W Ratio1.84
Top View
12.90 mm7.02 mm2.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6541372567
Side View
Table 57.0%Crown 39.95°Girdle: Very ThickPavilion 38.09°Culet: NoneDepth 63.6%

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 30
Current: £41,147 GBP|Low: £21,224 GBP|High: £41,586 GBP|Avg: £28,034 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6£24,118 GBP
Retailer 2£24,857 GBP
Retailer 5£25,469 GBP
Retailer 8£26,106 GBP
Retailer 9£26,311 GBP
Retailer 3£26,507 GBP
Retailer 7£27,626 GBP
Retailer 4£30,903 GBP
MOH London£41,147 GBP

40 data points across 9 retailers

22 retailers£23,954 GBP to £41,147 GBP

A
Cheapest Retailer
-
£23,954 GBP
$32,096 USD
A
Retailer 2
-
£24,118 GBP
$32,316 USD
View
Final sale: no returns
A
Retailer 3
-
£24,450 GBP
$32,761 USD
View
Retailer 4
-
£24,550 GBP
$32,894 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£24,857 GBP
₹3,172,015 INR
View
B+
Retailer 6
-
£25,469 GBP
$34,126 USD
View
B+
Retailer 7
-
£26,106 GBP
$34,979 USD
View
B+
Retailer 8
-
£26,311 GBP
$35,254 USD
View
B+
Retailer 9
-
£26,507 GBP
View
B+
Retailer 10
-
£26,695 GBP
$35,768 USD
View
B+
Retailer 11
-
£27,204 GBP
$36,450 USD
View
B+
Retailer 12
-
£27,204 GBP
$36,450 USD
View
B+
Retailer 13
-
£27,407 GBP
$36,722 USD
View
B+
Retailer 14
-
£27,626 GBP
$37,016 USD
View
B+
Retailer 15
-
£28,114 GBP
$37,670 USD
View
B+
Retailer 16
-
£28,134 GBP
$37,697 USD
View
B+
Retailer 17
-
£28,503 GBP
$38,191 USD
View
B+
Retailer 18
-
£29,599 GBP
$39,660 USD
View
Retailer 19
-
£29,599 GBP
$39,660 USD
View
Price last confirmed 55 days ago
B
Retailer 20
-
£30,903 GBP
€39,435 EUR
View
B
Retailer 21
-
£31,051 GBP
$41,605 USD
View
Most Expensive
B
MOH London
9CA0FEE87 · Oct 26
£41,147 GBP
View
21 more retailers have this diamond
Prices start from £23,954 GBPSave up to £17,192 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
2.51ct Marquise
£23,954 GBP