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Marquise|Natural|GIA

0.30ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 2554034510

Certificate GIA 2554034510

Diamond specifications and retailer prices

From $255 CAD
SGD 247 SGD
As of October 31, 2026
Save $114 CAD (31%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $370 CAD at 77 Diamonds · As of October 31, 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 2554034510. Listed at 3 retailers as of October 31, 2026, with prices from $255 to $370, a $114 spread on the same certified stone. 77 Diamonds lists it at $370. 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
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554034510
Dimensions6.61 × 3.44 × 2.23 mm
L/W Ratio1.92
Top View
6.61 mm3.44 mm0.30 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554034510
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $370 CAD|Low: $224 CAD|High: $375 CAD|Avg: $291 CAD|-1.0%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 3$255 CAD
Retailer 2$260 CAD
77 Diamonds$370 CAD

37 data points across 3 retailers

3 retailers$255 CAD to $370 CAD

B+
Cheapest Retailer
-
$255 CAD
SGD 247 SGD
B+
Retailer 2
-
$260 CAD
$186 USD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
MQCPCUZD3VD4 · Oct 31
$370 CAD
£208 GBP
View
2 more retailers have this diamond
Prices start from $255 CADSave up to $114 CAD

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
$255 CAD