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Marquise|Natural|GIA

1.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 5242001666

Certificate GIA 5242001666

Diamond specifications and retailer prices

From $13,772 NZD
As of November 4, 2026
Save $10,871 NZD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $27,155 NZD at NZ Jewellers · As of September 30, 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 E 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 5242001666. Listed at 13 retailers as of November 4, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242001666
Dimensions11.75 × 5.93 × 3.72 mm
L/W Ratio1.98
Girdle conditionFaceted
Top View
11.75 mm5.93 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242001666
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.7%

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 4
Current: $19,454 NZD|Low: $13,772 NZD|High: $25,588 NZD|Avg: $16,749 NZD|-0.9%
Retailer 1
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 3$13,772 NZD
Retailer 11$13,957 NZD
Retailer 9$14,671 NZD
Retailer 4$14,683 NZD
Retailer 10$15,252 NZD
Retailer 7$15,523 NZD
Retailer 2$15,822 NZD
Retailer 5$16,387 NZD
Retailer 12$16,394 NZD
Retailer 1$19,454 NZD
Retailer 8$19,790 NZD
Retailer 6$24,643 NZD

40 data points across 12 retailers

13 retailers$13,772 NZD to $24,643 NZD

A
Cheapest Retailer
-
$13,772 NZD
A
Retailer 2
-
$13,957 NZD
View
A
Retailer 3
-
$14,671 NZD
View
A
Retailer 4
-
$14,683 NZD
View
A
Retailer 5
-
$15,252 NZD
View
A
Retailer 6
-
$15,523 NZD
View
A
Retailer 7
-
$15,822 NZD
View
Final sale: no returns
A
Retailer 8
-
$16,387 NZD
View
A
Retailer 9
-
$16,394 NZD
View
B+
Retailer 10
-
$19,454 NZD
View
B+
Retailer 11
-
$19,790 NZD
View
B+
Retailer 12
-
$24,643 NZD
View
Most Expensive
NZ Jewellers
033a0c2e-f310-45ea-9653-ad70427ba0cb · Sep 30
$27,155 NZD
$15,265 USD
View
Price last confirmed 36 days ago
12 more retailers have this diamond
Prices start from $13,772 NZDSave up to $10,871 NZD

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
$13,772 NZD