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Round|Natural|GIA

0.40ct D I1 Round Natural Diamond

GD • D/I1 • GIA 1539672644

Certificate GIA 1539672644

Diamond specifications and retailer prices

From $412 AUD
₹27,545 INR
As of October 31, 2026
Save $1,779 AUD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,191 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded D colour (colourless) and I1 clarity (included), with a standard cut grade and certified by GIA 1539672644. Listed at 9 retailers as of October 30, 2026, with a 432% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1539672644
Dimensions4.61 × 4.59 × 2.95 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Twinning Wisp, Feather
Top View
4.61 mm4.59 mm0.40 ctD / I1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1539672644
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.2%

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: Oct 31
Current: $412 AUD|Low: $411 AUD|High: $2,431 AUD|Avg: $796 AUD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 1$412 AUD
Retailer 5$492 AUD
Retailer 3$615 AUD
Retailer 6$863 AUD
Retailer 2$1,037 AUD
Retailer 4$1,748 AUD

45 data points across 6 retailers

9 retailers$412 AUD to $2,191 AUD

A
Cheapest Retailer
-
$412 AUD
₹27,545 INR
Retailer 2
-
$492 AUD
HK$2,700 HKD
View
Price last confirmed 57 days ago
Retailer 3
-
$615 AUD
$432 USD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
$615 AUD
$432 USD
View
Retailer 5
-
$659 AUD
$463 USD
View
Price last confirmed 10 days ago
C
Retailer 6
-
$1,037 AUD
€694 EUR
View
Retailer 7
-
$1,748 AUD
$1,228 USD
View
Price last confirmed 9 days ago
C
Retailer 8
-
$2,191 AUD
$1,539 USD
View
Most Expensive
NZ Jewellers
2b05e6be-88b6-4774-bdc8-b01145ecc50f · Oct 20
$2,191 AUD
$1,539 USD
View
Price last confirmed 11 days ago
8 more retailers have this diamond
Prices start from $412 AUDSave up to $1,779 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 Round
$412 AUD