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Marquise|Natural|GIA

0.30ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 2566562

Certificate GIA 2566562

Diamond specifications and retailer prices

From $372 AUD
SGD 352 SGD
As of October 31, 2026
Save $560 AUD (60%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $931 AUD at Diamond Quarter · As of October 30, 2026
View at Diamond Quarter

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 2566562. Listed at 4 retailers as of October 30, 2026, with prices from $372 to $931, a $560 spread on the same certified stone. Diamond Quarter lists it at $931. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566562
Dimensions6.38 × 3.51 mm
L/W Ratio1.82
Top View
6.38 mm3.51 mm0.30 ctH / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2566562
Side View
Table 59.0%CrownGirdle: STK - VTKPavilionCulet: NDepth 65.5%

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: Oct 31
Current: $372 AUD|Low: $372 AUD|High: $515 AUD|Avg: $452 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
October 13, 2026
Retailer 1$372 AUD
Retailer 3$467 AUD
Retailer 2$515 AUD

3 data points across 3 retailers

4 retailers$372 AUD to $931 AUD

B+
Cheapest Retailer
-
$372 AUD
SGD 352 SGD
Retailer 2
-
$465 AUD
View
Price last confirmed 81 days ago
B
Retailer 3
-
$515 AUD
$361 USD
View
Most Expensive
C
Diamond Quarter
0.3SI2H7587D962N · Oct 30
$931 AUD
£514 GBP
View
3 more retailers have this diamond
Prices start from $372 AUDSave up to $560 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
$372 AUD