CaratHunter
Plans
Marquise|Natural|GIA

0.42ct J IF Marquise Natural Diamond

GD • J/IF • GIA 6545696809

Certificate GIA 6545696809

Diamond specifications and retailer prices

From £315 GBP
$423 USD
As of November 2, 2026
Save £79 GBP (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £394 GBP 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 IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545696809. Listed at 3 retailers as of November 2, 2026, with prices from £315 to £394, a £79 spread on the same certified stone. 77 Diamonds lists it at £394. 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
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545696809
Dimensions7.54 × 3.93 × 2.46 mm
L/W Ratio1.92
Top View
7.54 mm3.93 mm0.42 ctJ / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545696809
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.5%

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: £394 GBP|Low: £276 GBP|High: £415 GBP|Avg: £350 GBP|-3.1%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£315 GBP
Retailer 3£339 GBP
77 Diamonds£394 GBP

39 data points across 3 retailers

3 retailers£315 GBP to £394 GBP

B+
Cheapest Retailer
-
£315 GBP
$423 USD
Final sale: no returns
B+
Retailer 2
-
£339 GBP
SGD 614 SGD
View
Most Expensive
B+
77 Diamonds
MQCPSSRCJPFB · Nov 2
£394 GBP
View
2 more retailers have this diamond
Prices start from £315 GBPSave up to £79 GBP

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
£315 GBP