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Radiant|Natural|GIA

0.42ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 2556854085

Certificate GIA 2556854085

Diamond specifications and retailer prices

From $806 AUD
As of November 3, 2026
Save $326 AUD (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,948 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.42ct natural radiant diamond

This 0.42ct natural radiant sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556854085. Listed at 8 retailers as of November 3, 2026, with a 40% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556854085
Dimensions3.82 × 5.05 × 2.59 mm
L/W Ratio1.32
Top View
3.82 mm5.05 mm0.42 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556854085
Side View
Table 64.0%CrownGirdlePavilionCulet: NoneDepth 67.7%

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 3
Current: $1,948 AUD|Low: $806 AUD|High: $1,948 AUD|Avg: $1,212 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 4$806 AUD
Retailer 3$1,019 AUD
Retailer 6$1,030 AUD
Retailer 7$1,051 AUD
Retailer 8$1,076 AUD
Retailer 2$1,132 AUD
Retailer 5$1,301 AUD
MOH London$1,948 AUD

8 data points across 8 retailers

8 retailers$806 AUD to $1,132 AUD

B+
Cheapest Retailer
-
$806 AUD
B
Retailer 2
-
$1,019 AUD
View
B
Retailer 3
-
$1,030 AUD
View
B
Retailer 4
-
$1,051 AUD
View
B
Retailer 5
-
$1,076 AUD
View
B
Retailer 6
-
$1,132 AUD
View
Retailer 7
-
$1,301 AUD
View
Price last confirmed 8 days ago
Most Expensive
MOH London
688E617F1 · Oct 29
$1,948 AUD
£1,054 GBP
View
Price last confirmed 9 days ago
7 more retailers have this diamond
Prices start from $806 AUDSave up to $326 AUD

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 Radiant
$806 AUD