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Marquise|Natural|GIA

0.30ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 2557854396

Certificate GIA 2557854396

Diamond specifications and retailer prices

From $375 NZD
SGD 285 SGD
As of November 2, 2026
Save $163 NZD (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $538 NZD 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 2557854396. Listed at 2 retailers as of November 2, 2026, with prices from $375 to $538, a $163 spread on the same certified stone. 77 Diamonds lists it at $538. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557854396
Dimensions6.60 × 3.58 × 2.19 mm
L/W Ratio1.84
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
6.60 mm3.58 mm0.30 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557854396
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.1%

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: $538 NZD|Low: $375 NZD|High: $550 NZD|Avg: $451 NZD|+2.9%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2$375 NZD
77 Diamonds$538 NZD

39 data points across 2 retailers

2 retailers$375 NZD to $538 NZD

B+
Cheapest Retailer
-
$375 NZD
SGD 285 SGD
Most Expensive
B
77 Diamonds
MQCPJNTREH4Q · Nov 3
$538 NZD
£238 GBP
View
1 more retailer has this diamond
Prices start from $375 NZDSave up to $163 NZD

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
$375 NZD