CaratHunter
Plans
Marquise|Natural|GIA

0.40ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 5232779734

Certificate GIA 5232779734

Diamond specifications and retailer prices

From $702 AUD
$493 USD
As of November 1, 2026
Save $718 AUD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,620 AUD at MOH London · As of November 1, 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 H 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 5232779734. Listed at 13 retailers as of November 1, 2026, with a 102% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5232779734
Dimensions7.58 × 3.73 × 2.37 mm
L/W Ratio2.03
Top View
7.58 mm3.73 mm0.40 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5232779734
Side View
Table 59.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 63.5%

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: $1,620 AUD|Low: $702 AUD|High: $2,689 AUD|Avg: $1,166 AUD|-1.0%
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
November 2, 2026
Retailer 3$702 AUD
Retailer 4$756 AUD
Retailer 9$756 AUD
Retailer 13$810 AUD
Retailer 7$877 AUD
Retailer 11$890 AUD
Retailer 10$962 AUD
Retailer 6$1,052 AUD
Retailer 8$1,088 AUD
Retailer 5$1,124 AUD
Retailer 2$1,420 AUD
MOH London$1,620 AUD
Retailer 12$2,689 AUD

31 data points across 13 retailers

13 retailers$702 AUD to $1,420 AUD

B+
Cheapest Retailer
-
$702 AUD
$493 USD
B+
Retailer 2
-
$756 AUD
$531 USD
View
B+
Retailer 3
-
$756 AUD
$531 USD
View
B
Retailer 4
-
$810 AUD
$569 USD
View
B
Retailer 5
-
$877 AUD
£485 GBP
View
B
Retailer 6
-
$890 AUD
$625 USD
View
B
Retailer 7
-
$962 AUD
£532 GBP
View
B
Retailer 8
-
$1,052 AUD
€704 EUR
View
B
Retailer 9
-
$1,088 AUD
ZAR 12,346 ZAR
View
Retailer 10
-
$1,124 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$1,420 AUD
£785 GBP
View
Most Expensive
MOH London
6E6C6F30F · Nov 1
$1,620 AUD
£896 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $702 AUDSave up to $718 AUD

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
$702 AUD