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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 €354 EUR
$395 USD
As of October 28, 2026
Save €612 EUR (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €965 EUR 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 €354 to €965, a €612 spread on the same certified stone. MOH London lists it at €965. 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
Color
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: €965 EUR|Low: €354 EUR|High: €1,011 EUR|Avg: €552 EUR|-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€354 EUR
Retailer 6€390 EUR
Retailer 10€436 EUR
Retailer 15€448 EUR
Retailer 9€470 EUR
Retailer 4€476 EUR
Retailer 3€483 EUR
Retailer 12€483 EUR
Retailer 13€492 EUR
Retailer 8€521 EUR
Retailer 14€573 EUR
Retailer 2€597 EUR
Retailer 5€625 EUR
Retailer 7€692 EUR
MOH London€965 EUR

42 data points across 15 retailers

15 retailers€354 EUR to €965 EUR

A
Cheapest Retailer
-
€354 EUR
$395 USD
A
Retailer 2
-
€390 EUR
HK$3,400 HKD
View
A
Retailer 3
-
€436 EUR
$487 USD
View
A
Retailer 4
-
€448 EUR
$500 USD
View
A
Retailer 5
-
€470 EUR
$525 USD
View
B+
Retailer 6
-
€476 EUR
$532 USD
View
B+
Retailer 7
-
€483 EUR
$540 USD
View
B+
Retailer 8
-
€483 EUR
$540 USD
View
B+
Retailer 9
-
€492 EUR
$550 USD
View
B+
Retailer 10
-
€521 EUR
£458 GBP
View
B+
Retailer 11
-
€573 EUR
£504 GBP
View
B
Retailer 12
-
€597 EUR
View
B+
Retailer 13
-
€625 EUR
$699 USD
View
Retailer 14
-
€692 EUR
A$1,190 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
A44B12A18 · Nov 1
€965 EUR
£849 GBP
View
14 more retailers have this diamond
Prices start from €354 EURSave up to €612 EUR

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
€354 EUR