Heart|Natural|GIA

0.40ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7491278859

Certificate GIA 7491278859

Diamond specifications and retailer prices

From $294 USD
₹28,020 INR
As of October 31, 2026
Save $657 USD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,569 USD 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 October 29, 2026, with a 223% 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $294 USD|Low: $294 USD|High: $956 USD|Avg: $559 USD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 1$294 USD
Retailer 9$441 USD
Retailer 10$448 USD
Retailer 4$506 USD
Retailer 2$550 USD
Retailer 7$561 USD
Retailer 3$620 USD
Retailer 5$635 USD
Retailer 8$656 USD
Retailer 6$951 USD

38 data points across 10 retailers

14 retailers$294 USD to $951 USD

A
Cheapest Retailer
-
$294 USD
₹28,020 INR
A
Retailer 2
-
$409 USD
View
A
Retailer 3
-
$441 USD
View
A
Retailer 4
-
$441 USD
View
A
Retailer 5
-
$472 USD
View
A
Retailer 6
-
$472 USD
View
A
Retailer 7
-
$506 USD
£399 GBP
View
B+
Retailer 8
-
$550 USD
View
B+
Retailer 9
-
$561 USD
£442 GBP
View
B
Retailer 10
-
$620 USD
View
B+
Retailer 11
-
$635 USD
ZAR 10,255 ZAR
View
Retailer 12
-
$656 USD
A$1,009 AUD
View
Price last confirmed 27 days ago
B
Retailer 13
-
$951 USD
£749 GBP
View
Most Expensive
NZ Jewellers
1889cb0a-ad38-4c53-952e-7d764983da3c · Oct 30
$1,569 USD
View
Price under review
13 more retailers have this diamond
Prices start from $294 USDSave up to $657 USD

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
$294 USD