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Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 6562556595

Certificate GIA 6562556595

Diamond specifications and retailer prices

From $25,619 CAD
$18,340 USD
As of October 31, 2026
Save $14,831 CAD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $40,450 CAD at MOH London · As of November 1, 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 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 6562556595. Listed at 6 retailers as of October 31, 2026, with prices from $25,619 to $40,450, a $14,831 spread on the same certified stone. MOH London lists it at $40,450. 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
H
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle43.13°
Pavilion angle41.36°
OriginNatural
Grading LabGIA
CertificateGIA 6562556595
Dimensions12.60 × 7.00 × 4.70 mm
L/W Ratio1.80
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
12.60 mm7.00 mm2.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6562556595
Side View
Table 65.0%Crown 43.13°GirdlePavilion 41.36°CuletDepth 67.1%

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: $40,450 CAD|Low: $25,619 CAD|High: $42,574 CAD|Avg: $32,964 CAD|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4$25,619 CAD
Retailer 2$29,801 CAD
Retailer 5$30,019 CAD
Retailer 6$30,972 CAD
Retailer 3$36,692 CAD
MOH London$40,450 CAD

21 data points across 6 retailers

6 retailers$25,619 CAD to $40,450 CAD

A
Cheapest Retailer
-
$25,619 CAD
$18,340 USD
A
Retailer 2
-
$29,801 CAD
£16,798 GBP
View
A
Retailer 3
-
$30,019 CAD
$21,490 USD
View
B+
Retailer 4
-
$30,972 CAD
$22,172 USD
View
B+
Retailer 5
-
$36,692 CAD
$26,267 USD
View
Most Expensive
B
MOH London
720699669 · Nov 1
$40,450 CAD
£22,801 GBP
View
5 more retailers have this diamond
Prices start from $25,619 CADSave up to $14,831 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
2.51ct Marquise
$25,619 CAD