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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6551704674

Certificate GIA 6551704674

Diamond specifications and retailer prices

From $9,544 CAD
£5,369 GBP
As of October 29, 2026
Save $8,888 CAD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $18,431 CAD at NZ Jewellers · As of October 27, 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 E 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 6551704674. Listed at 8 retailers as of October 27, 2026, with prices from $9,544 to $18,431, a $8,888 spread on the same certified stone. NZ Jewellers lists it at $18,431. 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
E
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551704674
Dimensions10.50 × 5.91 × 3.95 mm
L/W Ratio1.78
Top View
10.50 mm5.91 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551704674
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 66.8%

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 29
Current: $18,431 CAD|Low: $9,515 CAD|High: $18,652 CAD|Avg: $11,246 CAD|-1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$9,544 CAD
Retailer 7$9,654 CAD
Retailer 8$9,811 CAD
Retailer 5$10,444 CAD
Retailer 4$11,020 CAD
Retailer 3$11,190 CAD
Retailer 6$15,441 CAD
NZ Jewellers$18,431 CAD

35 data points across 8 retailers

8 retailers$9,544 CAD to $18,431 CAD

A
Cheapest Retailer
-
$9,544 CAD
£5,369 GBP
A
Retailer 2
-
$9,654 CAD
$6,898 USD
View
A
Retailer 3
-
$9,811 CAD
$7,010 USD
View
A
Retailer 4
-
$10,444 CAD
£5,876 GBP
View
A
Retailer 5
-
$11,020 CAD
$7,874 USD
View
A
Retailer 6
-
$11,190 CAD
$7,995 USD
View
B+
Retailer 7
-
$15,441 CAD
£8,687 GBP
View
Most Expensive
B
NZ Jewellers
35a4231b-b749-454d-af27-01c6914e6792 · Oct 27
$18,431 CAD
$13,169 USD
View
7 more retailers have this diamond
Prices start from $9,544 CADSave up to $8,888 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
$9,544 CAD