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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2564661078

Certificate GIA 2564661078

Diamond specifications and retailer prices

From $13,183 NZD
As of November 6, 2026
Save $16,340 NZD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $29,523 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564661078. Listed at 11 retailers as of November 5, 2026, with prices from $13,183 to $29,523, a $16,340 spread on the same certified stone. NZ Jewellers lists it at $29,523. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564661078
Dimensions11.37 × 5.98 × 3.83 mm
L/W Ratio1.90
Girdle conditionThick to Very Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
11.37 mm5.98 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564661078
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.0%

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: $29,523 NZD|Low: $13,183 NZD|High: $30,264 NZD|Avg: $17,584 NZD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$13,183 NZD
Retailer 2$13,412 NZD
Retailer 9$13,928 NZD
Retailer 3$14,303 NZD
Retailer 10$15,647 NZD
Retailer 4$16,659 NZD
Retailer 5$17,507 NZD
Retailer 8$17,651 NZD
Retailer 7$17,924 NZD
Retailer 6$24,533 NZD
NZ Jewellers$29,523 NZD

15 data points across 11 retailers

11 retailers$13,183 NZD to $29,523 NZD

B+
Cheapest Retailer
-
$13,183 NZD
B+
Retailer 2
-
$13,412 NZD
View
B+
Retailer 3
-
$13,928 NZD
View
B+
Retailer 4
-
$14,303 NZD
View
Final sale: no returns
B+
Retailer 5
-
$15,647 NZD
View
B
Retailer 6
-
$16,659 NZD
View
B+
Retailer 7
-
$17,507 NZD
View
B+
Retailer 8
-
$17,651 NZD
View
B
Retailer 9
-
$17,924 NZD
View
B
Retailer 10
-
$24,533 NZD
View
Most Expensive
B
NZ Jewellers
7db7de9f-8eef-4587-93a5-3f82ce5dc6d7 · Nov 5
$29,523 NZD
$16,366 USD
View
10 more retailers have this diamond
Prices start from $13,183 NZDSave up to $16,340 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
$13,183 NZD