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Heart|Natural|GIA

0.40ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7491278859

Certificate GIA 7491278859

Diamond specifications and retailer prices

From $419 AUD
₹28,014 INR
As of November 1, 2026
Save $928 AUD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,234 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural heart diamond

This 0.4ct natural heart sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7491278859. Listed at 14 retailers as of November 1, 2026, with a 222% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7491278859
Dimensions4.13 × 5.08 × 3.09 mm
L/W Ratio1.23
Girdle conditionFaceted
Key to symbols
Twinning Wisp
Top View
4.13 mm5.08 mm0.40 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7491278859
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 60.8%

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: Nov 1
Current: $419 AUD|Low: $419 AUD|High: $1,361 AUD|Avg: $798 AUD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 1$419 AUD
Retailer 9$628 AUD
Retailer 10$638 AUD
Retailer 3$715 AUD
Retailer 2$783 AUD
Retailer 7$799 AUD
Retailer 5$883 AUD
Retailer 6$904 AUD
Retailer 8$934 AUD
Retailer 4$1,347 AUD

38 data points across 10 retailers

14 retailers$419 AUD to $1,347 AUD

A
Cheapest Retailer
-
$419 AUD
₹28,014 INR
A
Retailer 2
-
$582 AUD
$409 USD
View
A
Retailer 3
-
$628 AUD
$441 USD
View
A
Retailer 4
-
$628 AUD
$441 USD
View
A
Retailer 5
-
$672 AUD
$472 USD
View
A
Retailer 6
-
$672 AUD
$472 USD
View
A
Retailer 7
-
$715 AUD
£395 GBP
View
B+
Retailer 8
-
$783 AUD
$550 USD
View
B+
Retailer 9
-
$799 AUD
£442 GBP
View
B
Retailer 10
-
$883 AUD
$620 USD
View
B+
Retailer 11
-
$904 AUD
ZAR 10,255 ZAR
View
Retailer 12
-
$934 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$1,347 AUD
£745 GBP
View
Most Expensive
NZ Jewellers
1889cb0a-ad38-4c53-952e-7d764983da3c · Oct 30
$2,234 AUD
$1,569 USD
View
Price under review
13 more retailers have this diamond
Prices start from $419 AUDSave up to $928 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.

A
0.40ct Heart
$419 AUD