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Marquise|Natural|GIA

0.40ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 2556124525

Certificate GIA 2556124525

Diamond specifications and retailer prices

From $373 CAD
$267 USD
As of October 31, 2026
Save $121 CAD (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $494 CAD at 77 Diamonds · As of October 31, 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556124525. Listed at 3 retailers as of October 31, 2026, with prices from $373 to $494, a $121 spread on the same certified stone. 77 Diamonds lists it at $494. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556124525
Dimensions7.01 × 3.79 × 2.47 mm
L/W Ratio1.85
Top View
7.01 mm3.79 mm0.40 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2556124525
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 65.2%

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: Oct 31
Current: $494 CAD|Low: $373 CAD|High: $511 CAD|Avg: $434 CAD|-1.6%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 2$373 CAD
Retailer 3$384 CAD
77 Diamonds$494 CAD

38 data points across 3 retailers

3 retailers$373 CAD to $494 CAD

B+
Cheapest Retailer
-
$373 CAD
$267 USD
Final sale: no returns
B+
Retailer 2
-
$384 CAD
SGD 371 SGD
View
Most Expensive
B+
77 Diamonds
MQCPH63AGZXH · Oct 31
$494 CAD
£278 GBP
View
2 more retailers have this diamond
Prices start from $373 CADSave up to $121 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
$373 CAD