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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 5553877458

Certificate GIA 5553877458

Diamond specifications and retailer prices

From $11,377 CAD
As of November 6, 2026
Save $9,671 CAD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,048 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553877458. Listed at 14 retailers as of November 5, 2026, with prices from $11,377 to $21,048, a $9,671 spread on the same certified stone. NZ Jewellers lists it at $21,048. 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

1.51
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553877458
Dimensions13.58 × 5.56 × 3.16 mm
L/W Ratio2.44
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Needle
Top View
13.58 mm5.56 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553877458
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 56.9%

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 6
Current: $11,377 CAD|Low: $11,377 CAD|High: $19,960 CAD|Avg: $14,825 CAD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$11,377 CAD
Retailer 5$12,139 CAD
Retailer 3$13,680 CAD
Retailer 2$15,082 CAD
Retailer 6$15,333 CAD
Retailer 4$19,670 CAD

43 data points across 6 retailers

14 retailers$11,377 CAD to $21,048 CAD

A
Cheapest Retailer
-
$11,377 CAD
A
Retailer 2
-
$12,139 CAD
View
Final sale: no returns
A
Retailer 3
-
$12,779 CAD
View
A
Retailer 4
-
$12,934 CAD
View
A
Retailer 5
-
$13,680 CAD
View
Retailer 6
-
$13,939 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$15,082 CAD
View
B+
Retailer 8
-
$15,101 CAD
View
B+
Retailer 9
-
$15,333 CAD
View
B+
Retailer 10
-
$15,451 CAD
View
B
Retailer 11
-
$17,425 CAD
View
Retailer 12
-
$18,065 CAD
View
Price last confirmed 61 days ago
B
Retailer 13
-
$19,670 CAD
View
Most Expensive
B
NZ Jewellers
4acfa7d8-9450-421e-80a5-34c289f89a5a · Nov 5
$21,048 CAD
$15,071 USD
View
13 more retailers have this diamond
Prices start from $11,377 CADSave up to $9,671 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
1.51ct Marquise
$11,377 CAD