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Heart|Natural|GIA

0.40ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1555940920

Certificate GIA 1555940920

Diamond specifications and retailer prices

From $354 SGD
₹26,382 INR
As of October 26, 2026
Save $773 SGD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,127 SGD at MOH London · As of October 26, 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 1555940920. Listed at 10 retailers as of October 26, 2026, with prices from $354 to $1,127, a $773 spread on the same certified stone. MOH London lists it at $1,127. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555940920
Dimensions4.40 × 5.16 × 3.10 mm
L/W Ratio1.17
Girdle conditionThin to Slightly Thick
Key to symbols
Twinning Wisp, Feather
Top View
4.40 mm5.16 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555940920
Side View
Table 59.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $1,127 SGD|Low: $352 SGD|High: $2,079 SGD|Avg: $789 SGD|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 4$354 SGD
Retailer 8$425 SGD
Retailer 5$487 SGD
Retailer 10$516 SGD
Retailer 9$533 SGD
Retailer 6$543 SGD
Retailer 2$858 SGD
Retailer 3$989 SGD
MOH London$1,127 SGD
Retailer 7$1,868 SGD

31 data points across 10 retailers

10 retailers$354 SGD to $1,127 SGD

A
Cheapest Retailer
-
$354 SGD
₹26,382 INR
A
Retailer 2
-
$425 SGD
HK$2,600 HKD
View
A
Retailer 3
-
$487 SGD
$381 USD
View
B+
Retailer 4
-
$516 SGD
View
B+
Retailer 5
-
$533 SGD
$417 USD
View
Retailer 6
-
$543 SGD
$425 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$858 SGD
£528 GBP
View
B
Retailer 8
-
$989 SGD
£609 GBP
View
Most Expensive
B
MOH London
AF0E4AFA2 · Oct 26
$1,127 SGD
£694 GBP
View
8 more retailers have this diamond
Prices start from $354 SGDSave up to $773 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.

A
0.40ct Heart
$354 SGD