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Marquise|Natural|GIA

0.40ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 2554828426

Certificate GIA 2554828426

Diamond specifications and retailer prices

From $512 CAD
£288 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: $512 CAD at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 2554828426. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554828426
Dimensions6.95 × 3.75 × 2.49 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
6.95 mm3.75 mm0.40 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554828426
Side View
Table 58.0%CrownGirdle: THK-ETKPavilionCuletDepth 66.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $512 CAD|Low: $481 CAD|High: $512 CAD|Avg: $494 CAD|+3.4%
October 31, 2026
77 Diamonds$512 CAD

38 data points across 1 retailer

1 retailer

B
77 Diamonds
MQCPMAT4SGEE · Oct 31
$512 CAD
£288 GBP
View

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
$512 CAD