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Heart|Natural|GIA

0.42ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6452393961

Certificate GIA 6452393961

Diamond specifications and retailer prices

From $1,009 AUD
$709 USD
As of October 29, 2026
Save $556 AUD (36%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,276 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.42ct natural heart diamond

This 0.42ct natural heart sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6452393961. Listed at 14 retailers as of October 30, 2026, with a 55% 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6452393961
Dimensions5.19 × 5.05 × 2.79 mm
L/W Ratio1.03
Top View
5.19 mm5.05 mm0.42 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6452393961
Side View
Table 57.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 55.2%

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: Oct 29
Current: $2,276 AUD|Low: $1,075 AUD|High: $2,305 AUD|Avg: $1,530 AUD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$1,150 AUD
Retailer 6$1,265 AUD
Retailer 4$1,267 AUD
Retailer 3$1,435 AUD
Retailer 7$1,518 AUD
Retailer 5$1,565 AUD
MOH London$2,276 AUD

43 data points across 7 retailers

14 retailers$1,009 AUD to $1,565 AUD

B+
Cheapest Retailer
-
$1,009 AUD
$709 USD
B+
Retailer 2
-
$1,009 AUD
$709 USD
View
B+
Retailer 3
-
$1,048 AUD
$736 USD
View
B
Retailer 4
-
$1,150 AUD
£636 GBP
View
B
Retailer 5
-
$1,165 AUD
$818 USD
View
B
Retailer 6
-
$1,198 AUD
$841 USD
View
B
Retailer 7
-
$1,219 AUD
£674 GBP
View
B
Retailer 8
-
$1,265 AUD
£700 GBP
View
B
Retailer 9
-
$1,267 AUD
$890 USD
View
B
Retailer 10
-
$1,435 AUD
€960 EUR
View
Retailer 11
-
$1,518 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$1,565 AUD
ZAR 17,761 ZAR
View
Most Expensive
MOH London
6A834C23E · Nov 1
$2,276 AUD
£1,259 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,009 AUDSave up to $556 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 Heart
$1,009 AUD