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Marquise|Natural|GIA

1.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 1457090445

Certificate GIA 1457090445

Diamond specifications and retailer prices

From $19,327 NZD
As of November 6, 2026
Save $16,112 NZD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $35,439 NZD 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1457090445. Listed at 12 retailers as of November 5, 2026, with prices from $19,327 to $35,439, a $16,112 spread on the same certified stone. NZ Jewellers lists it at $35,439. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1457090445
Dimensions11.68 × 6.07 × 3.50 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Cert comments
Clouds are not shown. Pinpoints are not shown.
Top View
11.68 mm6.07 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1457090445
Side View
Table 59.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 57.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $23,662 NZD|Low: $19,327 NZD|High: $33,607 NZD|Avg: $24,646 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$19,327 NZD
Retailer 5$21,216 NZD
Retailer 2$23,007 NZD
Retailer 6$23,389 NZD
Retailer 1$23,662 NZD
Retailer 4$26,681 NZD
Retailer 3$33,120 NZD

43 data points across 7 retailers

12 retailers$19,327 NZD to $35,439 NZD

B+
Cheapest Retailer
-
$19,327 NZD
B
Retailer 2
-
$19,922 NZD
View
B+
Retailer 3
-
$20,987 NZD
View
B+
Retailer 4
-
$21,216 NZD
View
Final sale: no returns
B+
Retailer 5
-
$23,007 NZD
View
B
Retailer 6
-
$23,036 NZD
View
B
Retailer 7
-
$23,389 NZD
View
B
Retailer 8
-
$23,662 NZD
View
B
Retailer 9
-
$26,579 NZD
View
B
Retailer 10
-
$26,681 NZD
View
B
Retailer 11
-
$33,120 NZD
View
Most Expensive
B
NZ Jewellers
509fd407-2f62-48bc-9d7b-a8d631103646 · Nov 5
$35,439 NZD
$19,646 USD
View
11 more retailers have this diamond
Prices start from $19,327 NZDSave up to $16,112 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.

B+
1.50ct Marquise
$19,327 NZD