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Marquise|Natural|GIA

0.40ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 2558171173

Certificate GIA 2558171173

Diamond specifications and retailer prices

From $433 CAD
$310 USD
As of November 2, 2026
Save $148 CAD (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $581 CAD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.4ct natural marquise diamond

This 0.4ct 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 2558171173. Listed at 3 retailers as of November 2, 2026, with prices from $433 to $581, a $148 spread on the same certified stone. 77 Diamonds lists it at $581. 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

0.40
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2558171173
Dimensions7.38 × 3.85 × 2.43 mm
L/W Ratio1.92
Top View
7.38 mm3.85 mm0.40 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2558171173
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.2%

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: Nov 2
Current: $581 CAD|Low: $433 CAD|High: $596 CAD|Avg: $511 CAD|-0.6%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2$433 CAD
Retailer 3$453 CAD
77 Diamonds$581 CAD

39 data points across 3 retailers

3 retailers$433 CAD to $581 CAD

B+
Cheapest Retailer
-
$433 CAD
$310 USD
Final sale: no returns
B+
Retailer 2
-
$453 CAD
SGD 438 SGD
View
Most Expensive
B
77 Diamonds
MQCPSQNRNPZT · Nov 2
$581 CAD
£328 GBP
View
2 more retailers have this diamond
Prices start from $433 CADSave up to $148 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+
0.40ct Marquise
$433 CAD