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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6551370864

Certificate GIA 6551370864

Diamond specifications and retailer prices

From $4,319 CAD
SGD 4,178 SGD
As of October 31, 2026
Save $4,592 CAD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,911 CAD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale 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 J 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 6551370864. Listed at 10 retailers as of October 27, 2026, with prices from $4,319 to $8,911, a $4,592 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,911. 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.06°
Pavilion angle38.76°
OriginNatural
Grading LabGIA
CertificateGIA 6551370864
Dimensions11.46 × 6.06 × 3.69 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.46 mm6.06 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551370864
Side View
Table 58.0%Crown 38.06°Girdle: MED-THKPavilion 38.76°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,332 CAD|Low: $4,319 CAD|High: $10,005 CAD|Avg: $6,360 CAD|-13.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 2, 2026
Retailer 6$4,319 CAD
Retailer 3$4,338 CAD
Retailer 4$4,903 CAD
Retailer 10$5,160 CAD
Retailer 5$5,238 CAD
Retailer 9$5,353 CAD
Retailer 7$6,225 CAD
Retailer 8$6,285 CAD
Retailer 1$6,332 CAD
Retailer 2$6,719 CAD
Retailer 11$8,441 CAD
Wholesale Diamonds Direct$8,911 CAD

30 data points across 12 retailers

10 retailers$4,319 CAD to $8,911 CAD

A
Cheapest Retailer
-
$4,319 CAD
SGD 4,178 SGD
A
Retailer 2
-
$4,903 CAD
$3,510 USD
View
A
Retailer 3
-
$5,160 CAD
$3,694 USD
View
A
Retailer 4
-
$5,238 CAD
$3,750 USD
View
A
Retailer 5
-
$5,353 CAD
SGD 5,178 SGD
View
A
Retailer 6
-
$6,225 CAD
$4,456 USD
View
A
Retailer 7
-
$6,285 CAD
$4,499 USD
View
A
Retailer 8
-
$6,332 CAD
€4,317 EUR
View
B+
Retailer 9
-
$6,719 CAD
$4,810 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
262936432 · Oct 27
$8,911 CAD
$6,379 USD
View
9 more retailers have this diamond
Prices start from $4,319 CADSave up to $4,592 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
$4,319 CAD