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Marquise|Natural|GIA

1.50ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 5242018791

Certificate GIA 5242018791

Diamond specifications and retailer prices

From $6,949 NZD
As of November 6, 2026
Save $8,422 NZD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $17,061 NZD at NZ Jewellers · As of September 21, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5242018791. Listed at 16 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5242018791
Dimensions10.90 × 5.88 × 3.87 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.90 mm5.88 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5242018791
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

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: $8,729 NZD|Low: $6,904 NZD|High: $15,687 NZD|Avg: $9,686 NZD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 13$6,949 NZD
Retailer 3$7,041 NZD
Retailer 11$7,362 NZD
Retailer 4$7,659 NZD
Retailer 2$8,092 NZD
Retailer 6$8,262 NZD
Retailer 14$8,311 NZD
Retailer 12$8,352 NZD
Retailer 1$8,729 NZD
Retailer 7$9,387 NZD
Retailer 8$10,349 NZD
Retailer 9$11,807 NZD
Retailer 5$14,103 NZD
Retailer 10$15,371 NZD

25 data points across 14 retailers

16 retailers$6,949 NZD to $15,371 NZD

A
Cheapest Retailer
-
$6,949 NZD
A
Retailer 2
-
$7,041 NZD
View
A
Retailer 3
-
$7,362 NZD
View
A
Retailer 4
-
$7,659 NZD
View
A
Retailer 5
-
$8,092 NZD
View
Final sale: no returns
A
Retailer 6
-
$8,262 NZD
View
A
Retailer 7
-
$8,311 NZD
View
B+
Retailer 8
-
$8,352 NZD
View
B+
Retailer 9
-
$8,729 NZD
View
B+
Retailer 10
-
$9,236 NZD
View
B+
Retailer 11
-
$9,387 NZD
View
B+
Retailer 12
-
$10,349 NZD
View
B
Retailer 13
-
$11,807 NZD
View
B
Retailer 14
-
$14,103 NZD
View
B
Retailer 15
-
$15,371 NZD
View
Most Expensive
NZ Jewellers
ef6fab67-c475-4b9d-8407-d5be0307f5ab · Sep 21
$17,061 NZD
$9,458 USD
View
Price last confirmed 46 days ago
15 more retailers have this diamond
Prices start from $6,949 NZDSave up to $8,422 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
$6,949 NZD