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Marquise|Natural|GIA

0.30ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 5556848684

Certificate GIA 5556848684

Diamond specifications and retailer prices

From $295 AUD
SGD 279 SGD
As of November 2, 2026
Save $129 AUD (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $424 AUD at 77 Diamonds · As of November 3, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5556848684. Listed at 2 retailers as of November 2, 2026, with prices from $295 to $424, a $129 spread on the same certified stone. 77 Diamonds lists it at $424. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556848684
Dimensions6.19 × 3.53 × 2.32 mm
L/W Ratio1.75
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
6.19 mm3.53 mm0.30 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556848684
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.9%

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: Nov 2
Current: $424 AUD|Low: $295 AUD|High: $428 AUD|Avg: $369 AUD|+3.2%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2$295 AUD
77 Diamonds$424 AUD

39 data points across 2 retailers

2 retailers$295 AUD to $424 AUD

B+
Cheapest Retailer
-
$295 AUD
SGD 279 SGD
Most Expensive
B
77 Diamonds
MQCPSFENNRTS · Nov 3
$424 AUD
£234 GBP
View
1 more retailer has this diamond
Prices start from $295 AUDSave up to $129 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
$295 AUD