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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 $507 SGD
MYR 1,616 MYR
As of November 2, 2026
Save $204 SGD (29%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $711 SGD 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 $507 to $711, a $204 spread on the same certified stone. 77 Diamonds lists it at $711. 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
Colour
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: $711 SGD|Low: $487 SGD|High: $717 SGD|Avg: $595 SGD|+0.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$507 SGD
Retailer 3$568 SGD
Retailer 2$609 SGD
77 Diamonds$711 SGD

40 data points across 4 retailers

4 retailers$507 SGD to $711 SGD

B+
Cheapest Retailer
-
$507 SGD
MYR 1,616 MYR
B+
Retailer 2
-
$568 SGD
$444 USD
View
Final sale: no returns
B
Retailer 3
-
$609 SGD
View
Most Expensive
B
77 Diamonds
MQCPMXRJ6WYA · Nov 2
$711 SGD
£438 GBP
View
3 more retailers have this diamond
Prices start from $507 SGDSave up to $204 SGD

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
$507 SGD