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Round|Natural|GIA

0.40ct D SI2 Round Natural Diamond

VG • D/SI2 • GIA 6531506709

Certificate GIA 6531506709

Diamond specifications and retailer prices

From $472 AUD
₹31,549 INR
As of October 30, 2026
Save $982 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,558 AUD at NZ Jewellers · As of October 10, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6531506709. Listed at 15 retailers as of October 26, 2026, with a 208% 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6531506709
Dimensions4.59 × 4.52 × 2.95 mm
L/W Ratio1.02
Top View
4.59 mm4.52 mm0.40 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531506709
Side View
Table 56.0%Crown 38.5°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 65.2%

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 30
Current: $472 AUD|Low: $471 AUD|High: $1,587 AUD|Avg: $831 AUD|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 1$472 AUD
Retailer 2$547 AUD
Retailer 6$575 AUD
Retailer 5$663 AUD
Retailer 7$677 AUD
Retailer 8$732 AUD
Retailer 3$769 AUD
Retailer 4$813 AUD
Retailer 10$936 AUD
Retailer 9$1,454 AUD

37 data points across 10 retailers

15 retailers$472 AUD to $1,454 AUD

A
Cheapest Retailer
-
$472 AUD
₹31,549 INR
A
Retailer 2
-
$547 AUD
HK$3,000 HKD
View
B+
Retailer 3
-
$575 AUD
$404 USD
View
Final sale: no returns
A
Retailer 4
-
$663 AUD
View
Retailer 5
-
$668 AUD
$469 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$677 AUD
SGD 643 SGD
View
Retailer 7
-
$690 AUD
$485 USD
View
Price last confirmed 14 days ago
Retailer 8
-
$690 AUD
$485 USD
View
Price last confirmed 15 days ago
A
Retailer 9
-
$732 AUD
$514 USD
View
Retailer 10
-
$740 AUD
$520 USD
View
Price last confirmed 14 days ago
A
Retailer 11
-
$769 AUD
£425 GBP
View
A
Retailer 12
-
$813 AUD
$571 USD
View
Retailer 13
-
$936 AUD
€626 EUR
View
Price last confirmed 7 days ago
B
Retailer 14
-
$1,454 AUD
£804 GBP
View
Most Expensive
NZ Jewellers
f81f937b-3614-48a9-a3d3-ecc1f4df1ab9 · Oct 10
$2,558 AUD
$1,797 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from $472 AUDSave up to $982 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
$472 AUD