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Marquise|Natural|GIA

0.42ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 2564119166

Certificate GIA 2564119166

Diamond specifications and retailer prices

From $531 CAD
$380 USD
As of November 1, 2026
Save $133 CAD (20%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $664 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 2564119166. Listed at 4 retailers as of November 1, 2026, with prices from $531 to $664, a $133 spread on the same certified stone. 77 Diamonds lists it at $664. 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
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2564119166
Dimensions7.72 × 4.01 × 2.37 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.72 mm4.01 mm0.42 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2564119166
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.1%

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 1
Current: $664 CAD|Low: $456 CAD|High: $669 CAD|Avg: $570 CAD|+4.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$531 CAD
Retailer 3$538 CAD
Retailer 4$574 CAD
77 Diamonds$664 CAD

39 data points across 4 retailers

4 retailers$531 CAD to $664 CAD

B+
Cheapest Retailer
-
$531 CAD
$380 USD
B+
Retailer 2
-
$538 CAD
$385 USD
View
Final sale: no returns
B+
Retailer 3
-
$574 CAD
SGD 555 SGD
View
Most Expensive
B
77 Diamonds
MQCPBUHZJ5MM · Nov 2
$664 CAD
£374 GBP
View
3 more retailers have this diamond
Prices start from $531 CADSave up to $133 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
$531 CAD