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Marquise|Natural|GIA

0.42ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1569345054

Certificate GIA 1569345054

Diamond specifications and retailer prices

From $666 CAD
£375 GBP
As of November 1, 2026
2 retailers carry this diamond
Most expensive: $666 CAD at 77 Diamonds
View at 77 Diamonds

About this 0.42ct natural marquise diamond

This 0.42ct 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 1569345054. Listed at 2 retailers as of November 1, 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

0.42
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1569345054
Dimensions7.18 × 3.87 × 2.53 mm
L/W Ratio1.86
Culet sizeNone
Key to symbols
Crystal
Top View
7.18 mm3.87 mm0.42 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1569345054
Side View
Table 58.0%CrownGirdle: VTN-VTKPavilionCuletDepth 65.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $666 CAD|Low: $489 CAD|High: $672 CAD|Avg: $568 CAD|+6.6%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2$489 CAD
77 Diamonds$666 CAD

35 data points across 2 retailers

2 retailers

Retailer 1
-
$489 CAD
$350 USD
Price last confirmed 11 days ago
Most Expensive
B
77 Diamonds
MQCPJPQU4WJH · Nov 1
$666 CAD
£375 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
0.42ct Marquise
$666 CAD