CaratHunter
Plans
Heart|Natural|GIA

0.40ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 3525322081

Certificate GIA 3525322081

Diamond specifications and retailer prices

From $713 AUD
$501 USD
As of November 1, 2026
Save $392 AUD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,647 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct natural heart diamond

This 0.4ct natural heart sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3525322081. Listed at 19 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. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3525322081
Dimensions4.55 × 5.14 × 3.05 mm
L/W Ratio1.13
Top View
4.55 mm5.14 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3525322081
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.3%

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 1
Current: $1,647 AUD|Low: $713 AUD|High: $2,732 AUD|Avg: $1,133 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$713 AUD
Retailer 8$767 AUD
Retailer 11$823 AUD
Retailer 4$826 AUD
Retailer 5$827 AUD
Retailer 6$1,004 AUD
Retailer 12$1,022 AUD
Retailer 3$1,072 AUD
Retailer 7$1,105 AUD
Retailer 2$1,443 AUD
MOH London$1,647 AUD
Retailer 10$2,732 AUD

38 data points across 12 retailers

19 retailers$713 AUD to $1,105 AUD

Retailer 1
-
$713 AUD
$501 USD
Price last confirmed 25 days ago
B+
Retailer 2
-
$713 AUD
$501 USD
View
B
Retailer 3
-
$767 AUD
$539 USD
View
Retailer 4
-
$767 AUD
$539 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$823 AUD
$578 USD
View
Price last confirmed 24 days ago
B
Retailer 6
-
$823 AUD
$578 USD
View
B
Retailer 7
-
$826 AUD
$580 USD
View
B
Retailer 8
-
$827 AUD
£457 GBP
View
B
Retailer 9
-
$900 AUD
$632 USD
View
B
Retailer 10
-
$913 AUD
$641 USD
View
B
Retailer 11
-
$958 AUD
$673 USD
View
B
Retailer 12
-
$1,004 AUD
$705 USD
View
B
Retailer 13
-
$1,022 AUD
$718 USD
View
Retailer 14
-
$1,072 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$1,105 AUD
ZAR 12,543 ZAR
View
Retailer 16
-
$1,443 AUD
£798 GBP
View
Price under review
Most Expensive
MOH London
E78BA61A4 · Nov 1
$1,647 AUD
£911 GBP
View
Price under review
16 more retailers have this diamond
Prices start from $713 AUDSave up to $392 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+
0.40ct Heart
$713 AUD