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Marquise|Natural|GIA

0.30ct G SI2 Marquise Natural Diamond

GD • G/SI2 • GIA 2557829338

Certificate GIA 2557829338

Diamond specifications and retailer prices

From $336 AUD
SGD 319 SGD
As of October 31, 2026
Save $154 AUD (31%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $490 AUD at 77 Diamonds · As of November 1, 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 G 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 2557829338. Listed at 3 retailers as of October 31, 2026, with prices from $336 to $490, a $154 spread on the same certified stone. 77 Diamonds lists it at $490. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557829338
Dimensions6.31 × 3.51 × 2.25 mm
L/W Ratio1.80
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.31 mm3.51 mm0.30 ctG / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 2557829338
Side View
Table 57.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $490 AUD|Low: $336 AUD|High: $490 AUD|Avg: $400 AUD|+16.0%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$336 AUD
Retailer 2$391 AUD
77 Diamonds$490 AUD

38 data points across 3 retailers

3 retailers$336 AUD to $490 AUD

B+
Cheapest Retailer
-
$336 AUD
SGD 319 SGD
B+
Retailer 2
-
$391 AUD
$275 USD
View
Most Expensive
B
77 Diamonds
MQCPSJFEBGSS · Nov 1
$490 AUD
£271 GBP
View
2 more retailers have this diamond
Prices start from $336 AUDSave up to $154 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
$336 AUD