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Marquise|Natural|GIA

2.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 6545914908

Certificate GIA 6545914908

Diamond specifications and retailer prices

From £19,735 GBP
$26,443 USD
As of October 31, 2026
Save £7,928 GBP (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £27,664 GBP at MOH London · As of October 29, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545914908. Listed at 6 retailers as of October 29, 2026, with prices from £19,735 to £27,664, a £7,928 spread on the same certified stone. MOH London lists it at £27,664. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle32.57°
Pavilion angle41.66°
OriginNatural
Grading LabGIA
CertificateGIA 6545914908
Dimensions13.01 × 7.26 × 4.55 mm
L/W Ratio1.79
Top View
13.01 mm7.26 mm2.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545914908
Side View
Table 65.0%Crown 32.57°Girdle: VTK-ETKPavilion 41.66°Culet: NoneDepth 62.7%

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 31
Current: £27,664 GBP|Low: £18,230 GBP|High: £28,135 GBP|Avg: £21,951 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7£18,230 GBP
Retailer 5£19,735 GBP
Retailer 2£19,772 GBP
Retailer 3£20,420 GBP
Retailer 6£21,068 GBP
Retailer 8£21,638 GBP
Retailer 9£22,120 GBP
Retailer 4£24,960 GBP
MOH London£27,664 GBP

29 data points across 9 retailers

6 retailers£19,735 GBP to £27,664 GBP

A
Cheapest Retailer
-
£19,735 GBP
$26,443 USD
A
Retailer 2
-
£19,772 GBP
View
A
Retailer 3
-
£20,420 GBP
$27,360 USD
View
A
Retailer 4
-
£21,068 GBP
$28,229 USD
View
B+
Retailer 5
-
£24,960 GBP
$33,443 USD
View
Most Expensive
B+
MOH London
F615BD688 · Oct 29
£27,664 GBP
View
5 more retailers have this diamond
Prices start from £19,735 GBPSave up to £7,928 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
£19,735 GBP