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Marquise|Natural|GIA

2.50ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 2566626434

Certificate GIA 2566626434

Diamond specifications and retailer prices

From £16,916 GBP
$22,665 USD
As of November 2, 2026
Save £12,176 GBP (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £29,091 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566626434. Listed at 10 retailers as of November 1, 2026, with prices from £16,916 to £29,091, a £12,176 spread on the same certified stone. MOH London lists it at £29,091. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566626434
Dimensions13.21 × 6.90 × 4.38 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Top View
13.21 mm6.90 mm2.50 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566626434
Side View
Table 58.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 63.4%

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: Nov 2
Current: £29,091 GBP|Low: £16,916 GBP|High: £29,091 GBP|Avg: £20,493 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£16,916 GBP
Retailer 11£16,959 GBP
Retailer 3£18,361 GBP
Retailer 9£18,782 GBP
Retailer 5£18,936 GBP
Retailer 6£20,179 GBP
Retailer 7£20,955 GBP
Retailer 2£21,431 GBP
Retailer 4£21,802 GBP
Retailer 10£26,389 GBP
MOH London£29,091 GBP

5 data points across 11 retailers

10 retailers£16,916 GBP to £29,091 GBP

A
Cheapest Retailer
-
£16,916 GBP
$22,665 USD
A
Retailer 2
-
£16,959 GBP
$22,723 USD
View
B+
Retailer 3
-
£18,782 GBP
$25,166 USD
View
B+
Retailer 4
-
£18,936 GBP
View
B+
Retailer 5
-
£20,179 GBP
$27,038 USD
View
B
Retailer 6
-
£20,955 GBP
$28,078 USD
View
B+
Retailer 7
-
£21,431 GBP
View
B
Retailer 8
-
£21,802 GBP
€27,821 EUR
View
B
Retailer 9
-
£26,389 GBP
$35,358 USD
View
Most Expensive
B
MOH London
7B90AC64C · Nov 1
£29,091 GBP
View
9 more retailers have this diamond
Prices start from £16,916 GBPSave up to £12,176 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 Marquise
£16,916 GBP