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Heart|Natural|GIA

0.40ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 7566253653

Certificate GIA 7566253653

Diamond specifications and retailer prices

From $393 AUD
$276 USD
As of November 2, 2026
Save $128 AUD (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $521 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7566253653. Listed at 3 retailers as of November 2, 2026, with prices from $393 to $521, a $128 spread on the same certified stone. 77 Diamonds lists it at $521. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7566253653
Dimensions4.62 × 5.03 × 2.92 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
4.62 mm5.03 mm0.40 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 7566253653
Side View
Table 55.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 58.2%

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: $521 AUD|Low: $339 AUD|High: $538 AUD|Avg: $448 AUD|+2.8%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2$393 AUD
Retailer 3$409 AUD
77 Diamonds$521 AUD

39 data points across 3 retailers

3 retailers$393 AUD to $521 AUD

A
Cheapest Retailer
-
$393 AUD
$276 USD
Final sale: no returns
B+
Retailer 2
-
$409 AUD
SGD 388 SGD
View
Most Expensive
B+
77 Diamonds
HSCPPAFE2YZZ · Nov 2
$521 AUD
£288 GBP
View
2 more retailers have this diamond
Prices start from $393 AUDSave up to $128 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
$393 AUD