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Marquise|Natural|GIA

0.30ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 5234370400

Certificate GIA 5234370400

Diamond specifications and retailer prices

From $364 AUD
$255 USD
As of November 1, 2026
Save $415 AUD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $779 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5234370400. Listed at 7 retailers as of November 1, 2026, with prices from $364 to $779, a $415 spread on the same certified stone. MOH London lists it at $779. 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

0.30
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5234370400
Dimensions6.94 × 3.48 × 2.06 mm
L/W Ratio1.99
Top View
6.94 mm3.48 mm0.30 ctH / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 5234370400
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 59.2%

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: $779 AUD|Low: $364 AUD|High: $788 AUD|Avg: $581 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$364 AUD
Retailer 4$472 AUD
Retailer 2$512 AUD
Retailer 5$635 AUD
Retailer 3$682 AUD
MOH London$779 AUD

39 data points across 6 retailers

7 retailers$364 AUD to $779 AUD

B+
Cheapest Retailer
-
$364 AUD
$255 USD
B
Retailer 2
-
$472 AUD
£260 GBP
View
B
Retailer 3
-
$512 AUD
£282 GBP
View
B
Retailer 4
-
$635 AUD
$445 USD
View
C
Retailer 5
-
$667 AUD
£368 GBP
View
C
Retailer 6
-
$682 AUD
€455 EUR
View
Most Expensive
C
MOH London
1B6464635 · Nov 1
$779 AUD
£430 GBP
View
6 more retailers have this diamond
Prices start from $364 AUDSave up to $415 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+
0.30ct Marquise
$364 AUD