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Marquise|Natural|GIA

0.40ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6545323759

Certificate GIA 6545323759

Diamond specifications and retailer prices

From HK$1,987 HKD
₹24,113 INR
As of November 2, 2026
Save HK$3,803 HKD (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,604 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 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 6545323759. Listed at 16 retailers as of November 1, 2026, with a 191% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
Crown angle38°
Pavilion angle39.66°
OriginNatural
Grading LabGIA
CertificateGIA 6545323759
Dimensions7.41 × 3.90 × 2.44 mm
L/W Ratio1.90
Top View
7.41 mm3.90 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 6545323759
Side View
Table 58.0%Crown 38°Girdle: THN-THKPavilion 39.66°Culet: NoneDepth 62.6%

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$1,987 HKD|Low: HK$1,982 HKD|High: HK$5,849 HKD|Avg: HK$3,998 HKD|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 1HK$1,987 HKD
Retailer 4HK$3,222 HKD
Retailer 5HK$3,884 HKD
Retailer 7HK$4,237 HKD
Retailer 3HK$4,696 HKD
Retailer 2HK$5,071 HKD
Retailer 6HK$5,789 HKD

29 data points across 7 retailers

16 retailersHK$1,987 HKD to HK$5,789 HKD

A
Cheapest Retailer
-
HK$1,987 HKD
₹24,113 INR
A
Retailer 2
-
HK$2,503 HKD
$319 USD
View
A
Retailer 3
-
HK$2,699 HKD
$344 USD
View
A
Retailer 4
-
HK$2,793 HKD
$356 USD
View
B+
Retailer 5
-
HK$2,887 HKD
$368 USD
View
B+
Retailer 6
-
HK$3,222 HKD
£323 GBP
View
B+
Retailer 7
-
HK$3,374 HKD
$430 USD
View
B+
Retailer 8
-
HK$3,530 HKD
$450 USD
View
B+
Retailer 9
-
HK$3,884 HKD
ZAR 7,998 ZAR
View
B
Retailer 10
-
HK$3,923 HKD
$500 USD
View
Retailer 11
-
HK$4,013 HKD
A$787 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
HK$4,237 HKD
$540 USD
View
B
Retailer 13
-
HK$4,696 HKD
€570 EUR
View
B
Retailer 14
-
HK$5,071 HKD
£509 GBP
View
B
Retailer 15
-
HK$5,789 HKD
£581 GBP
View
Most Expensive
NZ Jewellers
433b11c4-d491-433a-a236-ff45f3c0c487 · Oct 30
HK$9,604 HKD
$1,224 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$1,987 HKDSave up to HK$3,803 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$1,987 HKD