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Marquise|Natural|GIA

0.31ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 6552838364

Certificate GIA 6552838364

Diamond specifications and retailer prices

From $392 AUD
$275 USD
As of November 1, 2026
Save $28 AUD (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $420 AUD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I 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 6552838364. Listed at 2 retailers as of November 1, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.31
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552838364
Dimensions6.30 × 3.49 × 2.34 mm
L/W Ratio1.81
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
6.30 mm3.49 mm0.31 ctI / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 6552838364
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCuletDepth 67.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $420 AUD|Low: $391 AUD|High: $424 AUD|Avg: $402 AUD|+3.0%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2$392 AUD
77 Diamonds$420 AUD

39 data points across 2 retailers

2 retailers$392 AUD to $420 AUD

B+
Cheapest Retailer
-
$392 AUD
$275 USD
Most Expensive
B
77 Diamonds
MQCPZTCFXT8M · Nov 3
$420 AUD
£232 GBP
View
1 more retailer has this diamond
Prices start from $392 AUDSave up to $28 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+
0.31ct Marquise
$392 AUD