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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 $643 SGD
$503 USD
As of November 1, 2026
Save $732 SGD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,569 SGD 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: $1,569 SGD|Low: $643 SGD|High: $2,168 SGD|Avg: $1,036 SGD|-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 8$643 SGD
Retailer 3$679 SGD
Retailer 11$684 SGD
Retailer 15$732 SGD
Retailer 16$732 SGD
Retailer 12$784 SGD
Retailer 6$847 SGD
Retailer 10$852 SGD
Retailer 7$854 SGD
Retailer 4$931 SGD
Retailer 5$934 SGD
Retailer 9$1,013 SGD
Retailer 13$1,053 SGD
Retailer 2$1,375 SGD
MOH London$1,569 SGD
Retailer 14$2,131 SGD

28 data points across 16 retailers

17 retailers$643 SGD to $1,375 SGD

B+
Cheapest Retailer
-
$643 SGD
$503 USD
B+
Retailer 2
-
$679 SGD
$531 USD
View
B+
Retailer 3
-
$684 SGD
$535 USD
View
B
Retailer 4
-
$732 SGD
$572 USD
View
B
Retailer 5
-
$732 SGD
$572 USD
View
B
Retailer 6
-
$784 SGD
$613 USD
View
B
Retailer 7
-
$847 SGD
$663 USD
View
B
Retailer 8
-
$852 SGD
£525 GBP
View
B
Retailer 9
-
$854 SGD
$668 USD
View
B
Retailer 10
-
$931 SGD
£573 GBP
View
C
Retailer 11
-
$934 SGD
$730 USD
View
B
Retailer 12
-
$1,013 SGD
€754 EUR
View
Retailer 13
-
$1,039 SGD
A$1,250 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$1,053 SGD
ZAR 13,307 ZAR
View
B
Retailer 15
-
$1,375 SGD
£846 GBP
View
Most Expensive
MOH London
B1C514864 · Nov 2
$1,569 SGD
£966 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $643 SGDSave up to $732 SGD

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
$643 SGD