CaratHunter
Plans
Marquise|Natural|GIA

2.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 3555720776

Certificate GIA 3555720776

Diamond specifications and retailer prices

From $31,249 CAD
As of October 30, 2026
Save $20,114 CAD (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $51,363 CAD 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 $31,249 to $51,363, a $20,114 spread on the same certified stone. MOH London lists it at $51,363. 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: $51,363 CAD|Low: $31,249 CAD|High: $51,981 CAD|Avg: $37,338 CAD|-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$31,249 CAD
Retailer 9$31,445 CAD
Retailer 3$33,757 CAD
Retailer 6$34,208 CAD
Retailer 7$36,079 CAD
Retailer 8$38,751 CAD
Retailer 2$38,861 CAD
Retailer 5$39,981 CAD
MOH London$51,363 CAD

25 data points across 9 retailers

9 retailers$31,249 CAD to $51,363 CAD

A
Cheapest Retailer
-
$31,249 CAD
A
Retailer 2
-
$31,445 CAD
$22,502 USD
View
B+
Retailer 3
-
$33,757 CAD
£19,021 GBP
View
B+
Retailer 4
-
$34,208 CAD
$24,480 USD
View
B+
Retailer 5
-
$36,079 CAD
$25,819 USD
View
B
Retailer 6
-
$38,751 CAD
$27,731 USD
View
B+
Retailer 7
-
$38,861 CAD
€26,485 EUR
View
B
Retailer 8
-
$39,981 CAD
$28,611 USD
View
Most Expensive
B
MOH London
CB5FF2EBF · Nov 1
$51,363 CAD
£28,942 GBP
View
8 more retailers have this diamond
Prices start from $31,249 CADSave up to $20,114 CAD

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
$31,249 CAD