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Marquise|Natural|GIA

0.42ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 7551050655

Certificate GIA 7551050655

Diamond specifications and retailer prices

From HK$2,642 HKD
SGD 455 SGD
As of November 2, 2026
Save HK$751 HKD (22%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$3,393 HKD 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 HK$2,642 to HK$3,393, a HK$751 spread on the same certified stone. 77 Diamonds lists it at HK$3,393. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$3,393 HKD|Low: HK$2,642 HKD|High: HK$3,498 HKD|Avg: HK$3,031 HKD|-1.2%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2HK$2,642 HKD
77 DiamondsHK$3,393 HKD

39 data points across 2 retailers

2 retailersHK$2,642 HKD to HK$3,393 HKD

B+
Cheapest Retailer
-
HK$2,642 HKD
SGD 455 SGD
Most Expensive
B
77 Diamonds
MQCPBCUXX8Y3 · Nov 2
HK$3,393 HKD
£341 GBP
View
1 more retailer has this diamond
Prices start from HK$2,642 HKDSave up to HK$751 HKD

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
HK$2,642 HKD