Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 6421787418

Certificate GIA 6421787418

Diamond specifications and retailer prices

From $7,389 USD
As of November 6, 2026
Save $6,728 USD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,117 USD 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 $7,389 to $14,117, a $6,728 spread on the same certified stone. NZ Jewellers lists it at $14,117. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $14,117 USD|Low: $7,314 USD|High: $14,117 USD|Avg: $10,366 USD
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$7,389 USD
Retailer 14$7,931 USD
Retailer 3$8,470 USD
Retailer 13$8,470 USD
Retailer 9$8,541 USD
Retailer 6$9,028 USD
Retailer 8$9,147 USD
Retailer 12$9,176 USD
Retailer 11$9,317 USD
Retailer 15$10,588 USD
Retailer 2$10,612 USD
Retailer 5$11,151 USD
Retailer 7$12,325 USD
Retailer 10$13,192 USD
NZ Jewellers$14,117 USD

38 data points across 15 retailers

14 retailers$7,389 USD to $14,117 USD

A
Cheapest Retailer
-
$7,389 USD
A
Retailer 2
-
$7,931 USD
View
B+
Retailer 3
-
$8,470 USD
View
Final sale: no returns
B+
Retailer 4
-
$8,541 USD
View
B+
Retailer 5
-
$9,028 USD
View
B+
Retailer 6
-
$9,147 USD
View
B+
Retailer 7
-
$9,176 USD
View
B+
Retailer 8
-
$9,317 USD
View
B
Retailer 9
-
$10,588 USD
View
Retailer 10
-
$10,588 USD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$10,612 USD
View
Retailer 12
-
$11,151 USD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$13,192 USD
View
Most Expensive
B
NZ Jewellers
2c005af1-3789-47d6-b397-86e7dec1092e · Nov 5
$14,117 USD
View
13 more retailers have this diamond
Prices start from $7,389 USDSave up to $6,728 USD

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
$7,389 USD