CaratHunter
Plans
Marquise|Natural|GIA

0.42ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6541662542

Certificate GIA 6541662542

Diamond specifications and retailer prices

From $454 AUD
₹30,283 INR
As of November 2, 2026
Save $989 AUD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,442 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.42ct natural marquise diamond

This 0.42ct 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 6541662542. Listed at 9 retailers as of November 2, 2026, with prices from $454 to $1,442, a $989 spread on the same certified stone. MOH London lists it at $1,442. 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

0.42
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541662542
Dimensions8.42 × 3.87 × 2.23 mm
L/W Ratio2.18
Top View
8.42 mm3.87 mm0.42 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541662542
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.7%

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: $1,442 AUD|Low: $454 AUD|High: $1,582 AUD|Avg: $853 AUD|-8.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$454 AUD
Retailer 5$530 AUD
Retailer 6$671 AUD
Retailer 4$672 AUD
Retailer 3$1,006 AUD
MOH London$1,442 AUD

45 data points across 6 retailers

9 retailers$454 AUD to $1,442 AUD

A
Cheapest Retailer
-
$454 AUD
₹30,283 INR
A
Retailer 2
-
$530 AUD
HK$2,900 HKD
View
Retailer 3
-
$671 AUD
SGD 635 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$672 AUD
$471 USD
View
Retailer 5
-
$723 AUD
$507 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$729 AUD
$511 USD
View
Price last confirmed 26 days ago
B
Retailer 7
-
$1,006 AUD
£555 GBP
View
Most Expensive
B
MOH London
0F2F21128 · Nov 2
$1,442 AUD
£796 GBP
View
7 more retailers have this diamond
Prices start from $454 AUDSave up to $989 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.

A
0.42ct Marquise
$454 AUD