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Marquise|Natural|GIA

0.40ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2556823525

Certificate GIA 2556823525

Diamond specifications and retailer prices

From $398 USD
£313 GBP
As of October 28, 2026
2 retailers carry this diamond
Most expensive: $398 USD at 77 Diamonds
View at 77 Diamonds

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded I 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 2556823525. Listed at 2 retailers as of October 28, 2026. 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
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556823525
Dimensions7.05 × 3.76 × 2.53 mm
L/W Ratio1.88
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.05 mm3.76 mm0.40 ctI / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 2556823525
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCuletDepth 67.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $398 USD|Low: $295 USD|High: $398 USD|Avg: $349 USD|+2.7%
77 Diamonds
Retailer 2
October 28, 2026
Retailer 2$295 USD
77 Diamonds$398 USD

35 data points across 2 retailers

2 retailers

Retailer 1
-
$295 USD
Price last confirmed 10 days ago
Most Expensive
B
77 Diamonds
MQCPW7SUUQVR · Oct 28
$398 USD
£313 GBP
View
1 more retailer has this diamond

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
$398 USD