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Marquise|Natural|GIA

0.30ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 6551842488

Certificate GIA 6551842488

Diamond specifications and retailer prices

From $312 NZD
SGD 237 SGD
As of November 2, 2026
Save $141 NZD (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $453 NZD 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 J 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 6551842488. Listed at 2 retailers as of November 2, 2026, with prices from $312 to $453, a $141 spread on the same certified stone. 77 Diamonds lists it at $453. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551842488
Dimensions6.41 × 3.46 × 2.30 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Cloud
Top View
6.41 mm3.46 mm0.30 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 6551842488
Side View
Table 64.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 66.5%

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: $453 NZD|Low: $312 NZD|High: $453 NZD|Avg: $373 NZD|+3.8%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2$312 NZD
77 Diamonds$453 NZD

39 data points across 2 retailers

2 retailers$312 NZD to $453 NZD

B+
Cheapest Retailer
-
$312 NZD
SGD 237 SGD
Most Expensive
B+
77 Diamonds
MQCPSHTMMQKW · Nov 2
$453 NZD
£200 GBP
View
1 more retailer has this diamond
Prices start from $312 NZDSave up to $141 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
$312 NZD