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Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 2564718645

Certificate GIA 2564718645

Diamond specifications and retailer prices

From $30,980 CAD
SGD 29,970 SGD
As of November 1, 2026
Save $8,797 CAD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $39,777 CAD at Frank Darling · As of November 1, 2026
View at Frank Darling

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 2564718645. Listed at 6 retailers as of November 1, 2026, with prices from $30,980 to $39,777, a $8,797 spread on the same certified stone. Frank Darling lists it at $39,777. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564718645
Dimensions14.31 × 6.76 × 4.27 mm
L/W Ratio2.12
Top View
14.31 mm6.76 mm2.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564718645
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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: Nov 1
Current: $39,777 CAD|Low: $30,980 CAD|High: $39,777 CAD|Avg: $34,570 CAD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$30,980 CAD
Retailer 2$32,942 CAD
Retailer 3$33,809 CAD
Retailer 4$34,072 CAD
Retailer 5$35,349 CAD
Frank Darling$39,777 CAD

4 data points across 6 retailers

6 retailers$30,980 CAD to $39,777 CAD

A
Cheapest Retailer
-
$30,980 CAD
SGD 29,970 SGD
A
Retailer 2
-
$32,942 CAD
£18,568 GBP
View
B+
Retailer 3
-
$33,809 CAD
$24,203 USD
View
B+
Retailer 4
-
$34,072 CAD
$24,391 USD
View
B+
Retailer 5
-
$35,349 CAD
$25,305 USD
View
Most Expensive
B
Frank Darling
260646-77HK · Nov 1
$39,777 CAD
$28,475 USD
View
5 more retailers have this diamond
Prices start from $30,980 CADSave up to $8,797 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
$30,980 CAD