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Marquise|Natural|GIA

1.50ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 5242078709

Certificate GIA 5242078709

Diamond specifications and retailer prices

From $9,579 NZD
As of November 5, 2026
Save $10,320 NZD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,899 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5242078709. Listed at 14 retailers as of November 5, 2026, with prices from $9,579 to $19,899, a $10,320 spread on the same certified stone. NZ Jewellers lists it at $19,899. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.41°
OriginNatural
Grading LabGIA
CertificateGIA 5242078709
Dimensions11.23 × 5.92 × 3.59 mm
L/W Ratio1.90
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
11.23 mm5.92 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242078709
Side View
Table 54.0%CrownGirdle: VTK-ETKPavilion 35.41°Culet: NoneDepth 60.6%

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 5
Current: $19,899 NZD|Low: $6,949 NZD|High: $19,899 NZD|Avg: $11,316 NZD|+22.4%
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
Retailer 16
November 7, 2026
Retailer 5$6,949 NZD
Retailer 8$8,417 NZD
Retailer 7$8,928 NZD
Retailer 4$9,442 NZD
Retailer 6$9,561 NZD
Retailer 14$9,579 NZD
Retailer 3$9,853 NZD
Retailer 15$10,289 NZD
Retailer 11$11,081 NZD
Retailer 16$11,347 NZD
Retailer 2$11,408 NZD
Retailer 13$11,476 NZD
Retailer 9$12,335 NZD
Retailer 12$17,411 NZD
Retailer 10$17,482 NZD
NZ Jewellers$19,899 NZD

29 data points across 16 retailers

14 retailers$9,579 NZD to $19,899 NZD

Retailer 1
-
$6,949 NZD
Price last confirmed 21 days ago
Retailer 2
-
$8,928 NZD
View
Price last confirmed 23 days ago
Retailer 3
-
$9,561 NZD
View
Price last confirmed 26 days ago
B+
Retailer 4
-
$9,579 NZD
View
B+
Retailer 5
-
$9,853 NZD
View
B
Retailer 6
-
$10,289 NZD
View
B
Retailer 7
-
$11,081 NZD
View
B
Retailer 8
-
$11,347 NZD
View
B
Retailer 9
-
$11,408 NZD
View
B
Retailer 10
-
$11,476 NZD
View
B
Retailer 11
-
$12,335 NZD
View
C
Retailer 12
-
$17,411 NZD
View
C
Retailer 13
-
$17,482 NZD
View
Most Expensive
C
NZ Jewellers
37025887-5a4a-48e0-b13f-12c39a9fc033 · Nov 5
$19,899 NZD
$11,031 USD
View
13 more retailers have this diamond
Prices start from $9,579 NZDSave up to $10,320 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
$9,579 NZD