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Round|Natural|GIA

0.40ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 6492539118

Certificate GIA 6492539118

Diamond specifications and retailer prices

From $347 AUD
As of November 6, 2026
Save $1,446 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,793 AUD at NZ Jewellers · As of November 4, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492539118. Listed at 14 retailers as of November 4, 2026, with prices from $347 to $1,793, a $1,446 spread on the same certified stone. NZ Jewellers lists it at $1,793. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6492539118
Dimensions4.71 × 4.73 × 2.89 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
4.71 mm4.73 mm0.40 ctL / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6492539118
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.3%

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: Nov 6
Current: $796 AUD|Low: $414 AUD|High: $811 AUD|Avg: $570 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$417 AUD
Retailer 6$441 AUD
Retailer 5$457 AUD
Retailer 3$491 AUD
Retailer 4$616 AUD
Retailer 2$669 AUD
Retailer 8$686 AUD
Retailer 1$796 AUD

44 data points across 8 retailers

14 retailers$347 AUD to $1,793 AUD

A
Cheapest Retailer
-
$347 AUD
B+
Retailer 2
-
$396 AUD
View
Retailer 3
-
$426 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$441 AUD
View
B+
Retailer 5
-
$457 AUD
View
B+
Retailer 6
-
$491 AUD
View
B+
Retailer 7
-
$533 AUD
View
B+
Retailer 8
-
$534 AUD
View
B+
Retailer 9
-
$616 AUD
View
B
Retailer 10
-
$669 AUD
View
B
Retailer 11
-
$686 AUD
View
B
Retailer 12
-
$721 AUD
View
B
Retailer 13
-
$796 AUD
View
Most Expensive
C
NZ Jewellers
7df04fd7-c2ff-4f23-bf40-c0b1edd1ff7b · Nov 4
$1,793 AUD
$1,255 USD
View
13 more retailers have this diamond
Prices start from $347 AUDSave up to $1,446 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
$347 AUD