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Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 6421787418

Certificate GIA 6421787418

Diamond specifications and retailer prices

From $10,393 CAD
As of November 6, 2026
Save $9,464 CAD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,857 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G 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 6421787418. Listed at 14 retailers as of November 5, 2026, with prices from $10,393 to $19,857, a $9,464 spread on the same certified stone. NZ Jewellers lists it at $19,857. 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

1.50
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6421787418
Dimensions10.83 × 6.18 × 3.79 mm
L/W Ratio1.75
Top View
10.83 mm6.18 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6421787418
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: Very SmallDepth 61.2%

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: $19,857 CAD|Low: $10,288 CAD|High: $19,857 CAD|Avg: $14,580 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 4$10,393 CAD
Retailer 14$11,156 CAD
Retailer 3$11,914 CAD
Retailer 13$11,914 CAD
Retailer 9$12,014 CAD
Retailer 6$12,699 CAD
Retailer 8$12,866 CAD
Retailer 12$12,907 CAD
Retailer 11$13,105 CAD
Retailer 15$14,893 CAD
Retailer 2$14,927 CAD
Retailer 5$15,685 CAD
Retailer 7$17,336 CAD
Retailer 10$18,556 CAD
NZ Jewellers$19,857 CAD

38 data points across 15 retailers

14 retailers$10,393 CAD to $19,857 CAD

A
Cheapest Retailer
-
$10,393 CAD
A
Retailer 2
-
$11,156 CAD
View
B+
Retailer 3
-
$11,914 CAD
View
Final sale: no returns
B+
Retailer 4
-
$12,014 CAD
View
B+
Retailer 5
-
$12,699 CAD
View
B+
Retailer 6
-
$12,866 CAD
View
B+
Retailer 7
-
$12,907 CAD
View
B+
Retailer 8
-
$13,105 CAD
View
B
Retailer 9
-
$14,893 CAD
View
Retailer 10
-
$14,893 CAD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$14,927 CAD
View
Retailer 12
-
$15,685 CAD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$18,556 CAD
View
Most Expensive
B
NZ Jewellers
2c005af1-3789-47d6-b397-86e7dec1092e · Nov 5
$19,857 CAD
$14,117 USD
View
13 more retailers have this diamond
Prices start from $10,393 CADSave up to $9,464 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
1.50ct Marquise
$10,393 CAD