CaratHunter
Plans
Marquise|Natural|GIA

0.42ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 7551050655

Certificate GIA 7551050655

Diamond specifications and retailer prices

From $431 SGD
As of November 2, 2026
Save $122 SGD (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $553 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 J 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 7551050655. Listed at 2 retailers as of November 2, 2026, with prices from $431 to $553, a $122 spread on the same certified stone. 77 Diamonds lists it at $553. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551050655
Dimensions7.66 × 3.99 × 2.43 mm
L/W Ratio1.92
Culet sizeNone
Key to symbols
Cloud
Top View
7.66 mm3.99 mm0.42 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7551050655
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.8%

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: $553 SGD|Low: $431 SGD|High: $570 SGD|Avg: $494 SGD|-1.2%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2$431 SGD
77 Diamonds$553 SGD

39 data points across 2 retailers

2 retailers$431 SGD to $553 SGD

B+
Cheapest Retailer
-
$431 SGD
Most Expensive
B
77 Diamonds
MQCPBCUXX8Y3 · Nov 2
$553 SGD
£341 GBP
View
1 more retailer has this diamond
Prices start from $431 SGDSave up to $122 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
$431 SGD