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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 2556189473

Certificate GIA 2556189473

Diamond specifications and retailer prices

From $8,720 CAD
As of November 4, 2026
Save $3,131 CAD (26%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,852 CAD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

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 2556189473. Listed at 10 retailers as of November 4, 2026, with prices from $8,720 to $11,852, a $3,131 spread on the same certified stone. The Diamond Guys lists it at $11,852. 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
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.25°
OriginNatural
Grading LabGIA
CertificateGIA 2556189473
Dimensions11.31 × 5.98 × 3.69 mm
L/W Ratio1.89
Top View
11.31 mm5.98 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556189473
Side View
Table 59.0%Crown 39.8°Girdle: STK-THKPavilion 38.25°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $11,060 CAD|Low: $8,720 CAD|High: $12,372 CAD|Avg: $10,346 CAD|-6.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$8,720 CAD
Retailer 8$9,146 CAD
Retailer 3$9,314 CAD
Retailer 9$9,546 CAD
Retailer 2$9,610 CAD
Retailer 4$9,776 CAD
Retailer 6$10,910 CAD
Retailer 1$11,060 CAD
Retailer 5$11,173 CAD

44 data points across 9 retailers

10 retailers$8,720 CAD to $11,852 CAD

A
Cheapest Retailer
-
$8,720 CAD
A
Retailer 2
-
$9,146 CAD
View
A
Retailer 3
-
$9,314 CAD
View
A
Retailer 4
-
$9,546 CAD
View
A
Retailer 5
-
$9,610 CAD
View
A
Retailer 6
-
$9,776 CAD
View
A
Retailer 7
-
$10,910 CAD
View
A
Retailer 8
-
$11,060 CAD
View
A
Retailer 9
-
$11,173 CAD
View
Most Expensive
A
The Diamond Guys
1955282050 · Nov 6
$11,852 CAD
$8,486 USD
View
9 more retailers have this diamond
Prices start from $8,720 CADSave up to $3,131 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
$8,720 CAD