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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 $491 NZD
₹26,382 INR
As of October 26, 2026
Save $1,072 NZD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,564 NZD 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 $491 to $1,564, a $1,072 spread on the same certified stone. MOH London lists it at $1,564. 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: $1,564 NZD|Low: $489 NZD|High: $2,885 NZD|Avg: $1,095 NZD|-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$491 NZD
Retailer 8$590 NZD
Retailer 5$676 NZD
Retailer 10$716 NZD
Retailer 9$740 NZD
Retailer 6$754 NZD
Retailer 2$1,190 NZD
Retailer 3$1,373 NZD
MOH London$1,564 NZD
Retailer 7$2,592 NZD

31 data points across 10 retailers

10 retailers$491 NZD to $1,564 NZD

A
Cheapest Retailer
-
$491 NZD
₹26,382 INR
A
Retailer 2
-
$590 NZD
HK$2,600 HKD
View
A
Retailer 3
-
$676 NZD
$381 USD
View
B+
Retailer 4
-
$716 NZD
SGD 545 SGD
View
B+
Retailer 5
-
$740 NZD
$417 USD
View
Retailer 6
-
$754 NZD
$425 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$1,190 NZD
£528 GBP
View
B
Retailer 8
-
$1,373 NZD
£609 GBP
View
Most Expensive
B
MOH London
AF0E4AFA2 · Oct 26
$1,564 NZD
£694 GBP
View
8 more retailers have this diamond
Prices start from $491 NZDSave up to $1,072 NZD

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
$491 NZD