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Marquise|Natural|GIA

0.42ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 6551423546

Certificate GIA 6551423546

Diamond specifications and retailer prices

From $554 CAD
MYR 1,616 MYR
As of November 2, 2026
Save $223 CAD (29%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $777 CAD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.42ct natural marquise diamond

This 0.42ct natural marquise sits in the sub-half-carat band, graded H 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 6551423546. Listed at 4 retailers as of November 2, 2026, with prices from $554 to $777, a $223 spread on the same certified stone. 77 Diamonds lists it at $777. 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
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551423546
Dimensions7.63 × 3.96 × 2.45 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.63 mm3.96 mm0.42 ctH / SI1
OriginNatural
CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551423546
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.8%

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: $777 CAD|Low: $532 CAD|High: $784 CAD|Avg: $651 CAD|+0.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$554 CAD
Retailer 3$620 CAD
Retailer 2$665 CAD
77 Diamonds$777 CAD

40 data points across 4 retailers

4 retailers$554 CAD to $777 CAD

B+
Cheapest Retailer
-
$554 CAD
MYR 1,616 MYR
B+
Retailer 2
-
$620 CAD
$444 USD
View
Final sale: no returns
B
Retailer 3
-
$665 CAD
SGD 643 SGD
View
Most Expensive
B
77 Diamonds
MQCPMXRJ6WYA · Nov 2
$777 CAD
£438 GBP
View
3 more retailers have this diamond
Prices start from $554 CADSave up to $223 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+
0.42ct Marquise
$554 CAD