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Marquise|Natural|GIA

2.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 3555720776

Certificate GIA 3555720776

Diamond specifications and retailer prices

From €20,016 EUR
CA$31,059 CAD
As of October 30, 2026
Save €12,884 EUR (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €32,900 EUR 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555720776. Listed at 9 retailers as of October 30, 2026, with prices from €20,016 to €32,900, a €12,884 spread on the same certified stone. MOH London lists it at €32,900. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555720776
Dimensions12.65 × 6.98 × 4.47 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity
Top View
12.65 mm6.98 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3555720776
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

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: €32,900 EUR|Low: €20,016 EUR|High: €33,296 EUR|Avg: €23,916 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4€20,016 EUR
Retailer 9€20,141 EUR
Retailer 3€21,622 EUR
Retailer 6€21,912 EUR
Retailer 7€23,110 EUR
Retailer 8€24,822 EUR
Retailer 2€24,892 EUR
Retailer 5€25,609 EUR
MOH London€32,900 EUR

25 data points across 9 retailers

9 retailers€20,016 EUR to €32,900 EUR

A
Cheapest Retailer
-
€20,016 EUR
CA$31,059 CAD
A
Retailer 2
-
€20,141 EUR
$22,502 USD
View
B+
Retailer 3
-
€21,622 EUR
£19,021 GBP
View
B+
Retailer 4
-
€21,912 EUR
$24,480 USD
View
B+
Retailer 5
-
€23,110 EUR
$25,819 USD
View
B
Retailer 6
-
€24,822 EUR
$27,731 USD
View
B+
Retailer 7
-
€24,892 EUR
View
B
Retailer 8
-
€25,609 EUR
$28,611 USD
View
Most Expensive
B
MOH London
CB5FF2EBF · Nov 1
€32,900 EUR
£28,942 GBP
View
8 more retailers have this diamond
Prices start from €20,016 EURSave up to €12,884 EUR

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
€20,016 EUR