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Marquise|Natural|GIA

1.51ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5566477733

Certificate GIA 5566477733

Diamond specifications and retailer prices

From $9,354 CAD
As of November 5, 2026
Save $3,905 CAD (29%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $13,259 CAD at Diamonds Direct · As of November 6, 2026
View at Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 5566477733. Listed at 12 retailers as of November 5, 2026, with prices from $9,354 to $13,259, a $3,905 spread on the same certified stone. Diamonds Direct lists it at $13,259. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle38.11°
OriginNatural
Grading LabGIA
CertificateGIA 5566477733
Dimensions11.22 × 5.93 × 3.64 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.22 mm5.93 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566477733
Side View
Table 59.0%Crown 39.9°Girdle: MED-THKPavilion 38.11°Culet: NoneDepth 61.5%

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 5
Current: $13,259 CAD|Low: $9,354 CAD|High: $13,458 CAD|Avg: $10,992 CAD|-1.5%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$9,354 CAD
Retailer 12$9,790 CAD
Retailer 3$9,859 CAD
Retailer 6$9,938 CAD
Retailer 11$9,971 CAD
Retailer 4$10,185 CAD
Retailer 5$10,301 CAD
Retailer 8$11,659 CAD
Retailer 7$11,752 CAD
Retailer 2$11,859 CAD
Retailer 10$11,915 CAD
Diamonds Direct$13,259 CAD

34 data points across 12 retailers

12 retailers$9,354 CAD to $13,259 CAD

A
Cheapest Retailer
-
$9,354 CAD
A
Retailer 2
-
$9,790 CAD
View
B+
Retailer 3
-
$9,859 CAD
View
B+
Retailer 4
-
$9,938 CAD
View
B+
Retailer 5
-
$9,971 CAD
View
B+
Retailer 6
-
$10,185 CAD
View
B+
Retailer 7
-
$10,301 CAD
View
B+
Retailer 8
-
$11,659 CAD
View
B+
Retailer 9
-
$11,752 CAD
View
B+
Retailer 10
-
$11,859 CAD
View
B+
Retailer 11
-
$11,915 CAD
View
Most Expensive
B
Diamonds Direct
1129909 · Nov 6
$13,259 CAD
$9,426 USD
View
11 more retailers have this diamond
Prices start from $9,354 CADSave up to $3,905 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
$9,354 CAD