Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5543246564

Certificate GIA 5543246564

Diamond specifications and retailer prices

From $15,695 NZD
$8,831 USD
As of November 1, 2026
Save $12,244 NZD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $27,939 NZD at NZ Jewellers · As of November 3, 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 5543246564. Listed at 16 retailers as of November 1, 2026, with prices from $15,695 to $27,939, a $12,244 spread on the same certified stone. NZ Jewellers lists it at $27,939. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543246564
Dimensions12.38 × 5.80 × 3.59 mm
L/W Ratio2.13
Top View
12.38 mm5.80 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543246564
Side View
Table 61.0%CrownGirdle: Ext. ThickPavilionCulet: NDepth 61.9%

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 1
Current: $27,939 NZD|Low: $16,763 NZD|High: $27,939 NZD|Avg: $21,159 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 8$16,763 NZD
Retailer 10$18,160 NZD
Retailer 5$18,349 NZD
Retailer 9$18,439 NZD
Retailer 3$18,441 NZD
Retailer 4$19,022 NZD
Retailer 11$20,954 NZD
Retailer 7$21,121 NZD
Retailer 6$24,628 NZD
Retailer 2$26,181 NZD
NZ Jewellers$27,939 NZD

31 data points across 11 retailers

16 retailers$15,695 NZD to $27,939 NZD

B+
Cheapest Retailer
-
$15,695 NZD
$8,831 USD
B+
Retailer 2
-
$15,708 NZD
$8,838 USD
View
B
Retailer 3
-
$16,763 NZD
$9,432 USD
View
B
Retailer 4
-
$16,904 NZD
$9,511 USD
View
B
Retailer 5
-
$17,877 NZD
$10,058 USD
View
B+
Retailer 6
-
$18,160 NZD
$10,218 USD
View
B+
Retailer 7
-
$18,349 NZD
£8,129 GBP
View
B
Retailer 8
-
$18,439 NZD
$10,375 USD
View
Retailer 9
-
$18,441 NZD
A$15,962 AUD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$19,022 NZD
£8,428 GBP
View
B
Retailer 11
-
$20,954 NZD
$11,790 USD
View
B
Retailer 12
-
$21,121 NZD
€11,318 EUR
View
Retailer 13
-
$22,060 NZD
$12,412 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$24,628 NZD
ZAR 223,860 ZAR
View
B
Retailer 15
-
$26,181 NZD
£11,599 GBP
View
Most Expensive
B
NZ Jewellers
75f06527-bd4d-42c8-bc83-917e5b8fcc82 · Nov 3
$27,939 NZD
$15,720 USD
View
15 more retailers have this diamond
Prices start from $15,695 NZDSave up to $12,244 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
$15,695 NZD