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Radiant|Natural|GIA

0.40ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 6552226389

Certificate GIA 6552226389

Diamond specifications and retailer prices

From $564 AUD
$395 USD
As of October 28, 2026
Save $975 AUD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,539 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct natural radiant diamond

This 0.4ct natural radiant sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552226389. Listed at 15 retailers as of October 28, 2026, with prices from $564 to $1,539, a $975 spread on the same certified stone. MOH London lists it at $1,539. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle51.3°
OriginNatural
Grading LabGIA
CertificateGIA 6552226389
Dimensions5.37 × 3.73 × 2.40 mm
L/W Ratio1.44
Top View
5.37 mm3.73 mm0.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552226389
Side View
Table 65.0%Crown 35.2°Girdle: MED-STKPavilion 51.3°Culet: NoneDepth 64.5%

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: Oct 28
Current: $1,539 AUD|Low: $564 AUD|High: $1,611 AUD|Avg: $880 AUD|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 11$564 AUD
Retailer 6$621 AUD
Retailer 10$695 AUD
Retailer 15$713 AUD
Retailer 9$749 AUD
Retailer 4$759 AUD
Retailer 3$771 AUD
Retailer 12$771 AUD
Retailer 13$785 AUD
Retailer 8$830 AUD
Retailer 14$913 AUD
Retailer 2$951 AUD
Retailer 5$997 AUD
Retailer 7$1,104 AUD
MOH London$1,539 AUD

42 data points across 15 retailers

15 retailers$564 AUD to $1,539 AUD

A
Cheapest Retailer
-
$564 AUD
$395 USD
A
Retailer 2
-
$621 AUD
HK$3,400 HKD
View
A
Retailer 3
-
$695 AUD
$487 USD
View
A
Retailer 4
-
$713 AUD
$500 USD
View
A
Retailer 5
-
$749 AUD
$525 USD
View
B+
Retailer 6
-
$759 AUD
$532 USD
View
B+
Retailer 7
-
$771 AUD
$540 USD
View
B+
Retailer 8
-
$771 AUD
$540 USD
View
B+
Retailer 9
-
$785 AUD
$550 USD
View
B+
Retailer 10
-
$830 AUD
£458 GBP
View
B+
Retailer 11
-
$913 AUD
£504 GBP
View
B
Retailer 12
-
$951 AUD
€635 EUR
View
B+
Retailer 13
-
$997 AUD
$699 USD
View
Retailer 14
-
$1,104 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
A44B12A18 · Nov 1
$1,539 AUD
£849 GBP
View
14 more retailers have this diamond
Prices start from $564 AUDSave up to $975 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 Radiant
$564 AUD