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Heart|Natural|GIA

0.40ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 2566243014

Certificate GIA 2566243014

Diamond specifications and retailer prices

From $589 AUD
$414 USD
As of November 2, 2026
Save $147 AUD (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $737 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2566243014. Listed at 3 retailers as of November 2, 2026, with prices from $589 to $737, a $147 spread on the same certified stone. 77 Diamonds lists it at $737. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566243014
Dimensions4.30 × 5.18 × 2.99 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
4.30 mm5.18 mm0.40 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2566243014
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.7%

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 2
Current: $737 AUD|Low: $512 AUD|High: $759 AUD|Avg: $651 AUD|+2.5%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2$589 AUD
Retailer 3$634 AUD
77 Diamonds$737 AUD

39 data points across 3 retailers

3 retailers$589 AUD to $737 AUD

A
Cheapest Retailer
-
$589 AUD
$414 USD
Final sale: no returns
B+
Retailer 2
-
$634 AUD
SGD 602 SGD
View
Most Expensive
B+
77 Diamonds
HSCPXU6E4P7Y · Nov 2
$737 AUD
£408 GBP
View
2 more retailers have this diamond
Prices start from $589 AUDSave up to $147 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
$589 AUD