Heart|Natural|GIA

0.42ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6452393961

Certificate GIA 6452393961

Diamond specifications and retailer prices

From $709 USD
As of October 29, 2026
Save $390 USD (36%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,608 USD at MOH London · As of October 29, 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 29, 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
Color
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: $1,608 USD|Low: $755 USD|High: $1,619 USD|Avg: $1,074 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4$801 USD
Retailer 6$888 USD
Retailer 3$890 USD
Retailer 2$1,008 USD
Retailer 7$1,066 USD
Retailer 5$1,099 USD
MOH London$1,608 USD

42 data points across 7 retailers

14 retailers$709 USD to $1,099 USD

B+
Cheapest Retailer
-
$709 USD
B+
Retailer 2
-
$709 USD
View
B+
Retailer 3
-
$736 USD
View
B
Retailer 4
-
$801 USD
£631 GBP
View
B
Retailer 5
-
$818 USD
View
B
Retailer 6
-
$841 USD
View
B
Retailer 7
-
$856 USD
£674 GBP
View
B
Retailer 8
-
$888 USD
£700 GBP
View
B
Retailer 9
-
$890 USD
View
B
Retailer 10
-
$1,008 USD
€960 EUR
View
Retailer 11
-
$1,066 USD
A$1,640 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
$1,099 USD
ZAR 17,761 ZAR
View
Most Expensive
MOH London
6A834C23E · Oct 29
$1,608 USD
£1,266 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $709 USDSave up to $390 USD

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
$709 USD