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Marquise|Natural|GIA

0.40ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1563201231

Certificate GIA 1563201231

Diamond specifications and retailer prices

From $450 NZD
$253 USD
As of November 2, 2026
Save $792 NZD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,437 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded J 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 1563201231. Listed at 18 retailers as of November 1, 2026, with a 176% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle39.2°
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 1563201231
Dimensions7.38 × 3.80 × 2.45 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizeNone
Top View
7.38 mm3.80 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1563201231
Side View
Table 60.0%Crown 39.2°Girdle: MED-VTKPavilion 40.7°Culet: NoneDepth 64.4%

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 2
Current: $2,437 NZD|Low: $450 NZD|High: $2,437 NZD|Avg: $830 NZD|+16.0%
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
Retailer 17
November 2, 2026
Retailer 4$450 NZD
Retailer 5$473 NZD
Retailer 12$487 NZD
Retailer 8$526 NZD
Retailer 2$544 NZD
Retailer 9$546 NZD
Retailer 14$656 NZD
Retailer 11$688 NZD
Retailer 16$704 NZD
Retailer 17$707 NZD
Retailer 3$834 NZD
Retailer 6$861 NZD
Retailer 7$889 NZD
Retailer 15$1,019 NZD
Retailer 10$1,088 NZD
Retailer 13$1,241 NZD
NZ Jewellers$2,437 NZD

27 data points across 17 retailers

18 retailers$450 NZD to $1,241 NZD

A
Cheapest Retailer
-
$450 NZD
$253 USD
Final sale: no returns
A
Retailer 2
-
$471 NZD
$265 USD
View
A
Retailer 3
-
$473 NZD
$266 USD
View
A
Retailer 4
-
$487 NZD
$274 USD
View
A
Retailer 5
-
$526 NZD
$296 USD
View
A
Retailer 6
-
$544 NZD
$306 USD
View
A
Retailer 7
-
$546 NZD
HK$2,400 HKD
View
B+
Retailer 8
-
$656 NZD
$369 USD
View
B+
Retailer 9
-
$688 NZD
£305 GBP
View
B+
Retailer 10
-
$704 NZD
$396 USD
View
B+
Retailer 11
-
$707 NZD
$398 USD
View
B+
Retailer 12
-
$834 NZD
ZAR 7,579 ZAR
View
B
Retailer 13
-
$861 NZD
$485 USD
View
B
Retailer 14
-
$889 NZD
$500 USD
View
B
Retailer 15
-
$1,019 NZD
€546 EUR
View
B
Retailer 16
-
$1,088 NZD
£482 GBP
View
B
Retailer 17
-
$1,241 NZD
£550 GBP
View
Most Expensive
NZ Jewellers
6d49b65a-c097-4767-8cc5-23db7369fed4 · Oct 30
$2,437 NZD
$1,371 USD
View
Price under review
17 more retailers have this diamond
Prices start from $450 NZDSave up to $792 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
0.40ct Marquise
$450 NZD