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Marquise|Natural|GIA

0.30ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 1557603073

Certificate GIA 1557603073

Diamond specifications and retailer prices

From $387 AUD
$271 USD
As of November 1, 2026
Save $126 AUD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $513 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1557603073. Listed at 4 retailers as of November 1, 2026, with prices from $387 to $513, a $126 spread on the same certified stone. 77 Diamonds lists it at $513. 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
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557603073
Dimensions6.71 × 3.59 × 2.18 mm
L/W Ratio1.87
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.71 mm3.59 mm0.30 ctF / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1557603073
Side View
Table 63.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 60.6%

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: $513 AUD|Low: $328 AUD|High: $513 AUD|Avg: $420 AUD|+2.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$387 AUD
Retailer 3$398 AUD
Retailer 2$400 AUD
77 Diamonds$513 AUD

38 data points across 4 retailers

4 retailers$387 AUD to $513 AUD

B+
Cheapest Retailer
-
$387 AUD
$271 USD
Final sale: no returns
B+
Retailer 2
-
$398 AUD
SGD 377 SGD
View
B+
Retailer 3
-
$400 AUD
$280 USD
View
Most Expensive
B
77 Diamonds
MQCPX2GMDYZT · Nov 2
$513 AUD
£283 GBP
View
3 more retailers have this diamond
Prices start from $387 AUDSave up to $126 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
$387 AUD