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Heart|Natural|GIA

0.40ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 3525322081

Certificate GIA 3525322081

Diamond specifications and retailer prices

From $640 SGD
$501 USD
As of November 1, 2026
Save $352 SGD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,479 SGD 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: $1,479 SGD|Low: $640 SGD|High: $2,453 SGD|Avg: $1,018 SGD|-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$640 SGD
Retailer 8$689 SGD
Retailer 11$739 SGD
Retailer 4$741 SGD
Retailer 5$743 SGD
Retailer 6$901 SGD
Retailer 12$918 SGD
Retailer 3$963 SGD
Retailer 7$993 SGD
Retailer 2$1,295 SGD
MOH London$1,479 SGD
Retailer 10$2,453 SGD

38 data points across 12 retailers

19 retailers$640 SGD to $993 SGD

Retailer 1
-
$640 SGD
$501 USD
Price last confirmed 25 days ago
B+
Retailer 2
-
$640 SGD
$501 USD
View
B
Retailer 3
-
$689 SGD
$539 USD
View
Retailer 4
-
$689 SGD
$539 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$739 SGD
$578 USD
View
Price last confirmed 23 days ago
B
Retailer 6
-
$739 SGD
$578 USD
View
B
Retailer 7
-
$741 SGD
$580 USD
View
B
Retailer 8
-
$743 SGD
£457 GBP
View
B
Retailer 9
-
$808 SGD
$632 USD
View
B
Retailer 10
-
$819 SGD
$641 USD
View
B
Retailer 11
-
$860 SGD
$673 USD
View
B
Retailer 12
-
$901 SGD
$705 USD
View
B
Retailer 13
-
$918 SGD
$718 USD
View
Retailer 14
-
$963 SGD
A$1,158 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$993 SGD
ZAR 12,543 ZAR
View
Retailer 16
-
$1,295 SGD
£798 GBP
View
Price under review
Most Expensive
MOH London
E78BA61A4 · Nov 1
$1,479 SGD
£911 GBP
View
Price under review
16 more retailers have this diamond
Prices start from $640 SGDSave up to $352 SGD

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
$640 SGD