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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 HK$1,985 HKD
$253 USD
As of November 2, 2026
Save HK$3,495 HKD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$10,757 HKD 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: HK$10,757 HKD|Low: HK$1,985 HKD|High: HK$10,757 HKD|Avg: HK$3,662 HKD|+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 4HK$1,985 HKD
Retailer 5HK$2,087 HKD
Retailer 12HK$2,150 HKD
Retailer 8HK$2,322 HKD
Retailer 2HK$2,401 HKD
Retailer 9HK$2,410 HKD
Retailer 14HK$2,895 HKD
Retailer 11HK$3,039 HKD
Retailer 16HK$3,107 HKD
Retailer 17HK$3,123 HKD
Retailer 3HK$3,681 HKD
Retailer 6HK$3,802 HKD
Retailer 7HK$3,923 HKD
Retailer 15HK$4,498 HKD
Retailer 10HK$4,805 HKD
Retailer 13HK$5,481 HKD
NZ JewellersHK$10,757 HKD

27 data points across 17 retailers

18 retailersHK$1,985 HKD to HK$5,481 HKD

A
Cheapest Retailer
-
HK$1,985 HKD
$253 USD
Final sale: no returns
A
Retailer 2
-
HK$2,079 HKD
$265 USD
View
A
Retailer 3
-
HK$2,087 HKD
$266 USD
View
A
Retailer 4
-
HK$2,150 HKD
$274 USD
View
A
Retailer 5
-
HK$2,322 HKD
$296 USD
View
A
Retailer 6
-
HK$2,401 HKD
$306 USD
View
A
Retailer 7
-
HK$2,410 HKD
View
B+
Retailer 8
-
HK$2,895 HKD
$369 USD
View
B+
Retailer 9
-
HK$3,039 HKD
£305 GBP
View
B+
Retailer 10
-
HK$3,107 HKD
$396 USD
View
B+
Retailer 11
-
HK$3,123 HKD
$398 USD
View
B+
Retailer 12
-
HK$3,681 HKD
ZAR 7,579 ZAR
View
B
Retailer 13
-
HK$3,802 HKD
$485 USD
View
B
Retailer 14
-
HK$3,923 HKD
$500 USD
View
B
Retailer 15
-
HK$4,498 HKD
€546 EUR
View
B
Retailer 16
-
HK$4,805 HKD
£482 GBP
View
B
Retailer 17
-
HK$5,481 HKD
£550 GBP
View
Most Expensive
NZ Jewellers
6d49b65a-c097-4767-8cc5-23db7369fed4 · Oct 30
HK$10,757 HKD
$1,371 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$1,985 HKDSave up to HK$3,495 HKD

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
HK$1,985 HKD