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Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 6531359310

Certificate GIA 6531359310

Diamond specifications and retailer prices

From HK$3,947 HKD
$503 USD
As of November 1, 2026
Save HK$4,488 HKD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$9,626 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6531359310. Listed at 17 retailers as of November 1, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531359310
Dimensions7.69 × 3.93 × 2.32 mm
L/W Ratio1.96
Top View
7.69 mm3.93 mm0.40 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531359310
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.1%

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: HK$9,626 HKD|Low: HK$3,947 HKD|High: HK$13,299 HKD|Avg: HK$6,358 HKD|-2.7%
MOH London
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
November 2, 2026
Retailer 8HK$3,947 HKD
Retailer 3HK$4,166 HKD
Retailer 11HK$4,198 HKD
Retailer 15HK$4,488 HKD
Retailer 16HK$4,488 HKD
Retailer 12HK$4,810 HKD
Retailer 6HK$5,199 HKD
Retailer 10HK$5,229 HKD
Retailer 7HK$5,241 HKD
Retailer 4HK$5,712 HKD
Retailer 5HK$5,728 HKD
Retailer 9HK$6,212 HKD
Retailer 13HK$6,463 HKD
Retailer 2HK$8,435 HKD
MOH LondonHK$9,626 HKD
Retailer 14HK$13,072 HKD

28 data points across 16 retailers

17 retailersHK$3,947 HKD to HK$8,435 HKD

B+
Cheapest Retailer
-
HK$3,947 HKD
$503 USD
B+
Retailer 2
-
HK$4,166 HKD
$531 USD
View
B+
Retailer 3
-
HK$4,198 HKD
$535 USD
View
B
Retailer 4
-
HK$4,488 HKD
$572 USD
View
B
Retailer 5
-
HK$4,488 HKD
$572 USD
View
B
Retailer 6
-
HK$4,810 HKD
$613 USD
View
B
Retailer 7
-
HK$5,199 HKD
$663 USD
View
B
Retailer 8
-
HK$5,229 HKD
£525 GBP
View
B
Retailer 9
-
HK$5,241 HKD
$668 USD
View
B
Retailer 10
-
HK$5,712 HKD
£573 GBP
View
C
Retailer 11
-
HK$5,728 HKD
$730 USD
View
B
Retailer 12
-
HK$6,212 HKD
€754 EUR
View
Retailer 13
-
HK$6,375 HKD
A$1,250 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
HK$6,463 HKD
ZAR 13,307 ZAR
View
B
Retailer 15
-
HK$8,435 HKD
£846 GBP
View
Most Expensive
MOH London
B1C514864 · Nov 2
HK$9,626 HKD
£966 GBP
View
Price under review
15 more retailers have this diamond
Prices start from HK$3,947 HKDSave up to HK$4,488 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.

B+
0.40ct Marquise
HK$3,947 HKD