Radiant|Natural|GIA

0.40ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 1553566105

Certificate GIA 1553566105

Diamond specifications and retailer prices

From $448 CAD
$321 USD
As of October 30, 2026
Save $795 CAD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,053 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural radiant diamond

This 0.4ct natural radiant sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553566105. Listed at 14 retailers as of October 29, 2026, with a 177% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle60.56°
OriginNatural
Grading LabGIA
CertificateGIA 1553566105
Dimensions5.07 × 3.74 × 2.53 mm
L/W Ratio1.36
Girdle conditionPolished
Top View
5.07 mm3.74 mm0.40 ctI / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553566105
Side View
Table 65.0%Crown 35.8°Girdle: THN-MEDPavilion 60.56°Culet: NDepth 67.6%

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: $2,053 CAD|Low: $448 CAD|High: $2,126 CAD|Avg: $820 CAD|-3.4%
NZ Jewellers
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
October 31, 2026
Retailer 3$448 CAD
Retailer 8$448 CAD
Retailer 13$485 CAD
Retailer 6$519 CAD
Retailer 5$522 CAD
Retailer 4$541 CAD
Retailer 14$641 CAD
Retailer 12$645 CAD
Retailer 11$654 CAD
Retailer 2$698 CAD
Retailer 7$871 CAD
Retailer 9$1,087 CAD
Retailer 10$1,244 CAD
NZ Jewellers$2,053 CAD

32 data points across 14 retailers

14 retailers$448 CAD to $1,244 CAD

A
Cheapest Retailer
-
$448 CAD
$321 USD
A
Retailer 2
-
$448 CAD
$321 USD
View
Final sale: no returns
A
Retailer 3
-
$485 CAD
$347 USD
View
A
Retailer 4
-
$519 CAD
HK$2,900 HKD
View
A
Retailer 5
-
$522 CAD
$374 USD
View
A
Retailer 6
-
$541 CAD
$387 USD
View
B+
Retailer 7
-
$641 CAD
$459 USD
View
B+
Retailer 8
-
$645 CAD
$462 USD
View
B+
Retailer 9
-
$654 CAD
$468 USD
View
B+
Retailer 10
-
$698 CAD
£394 GBP
View
B+
Retailer 11
-
$871 CAD
€594 EUR
View
B
Retailer 12
-
$1,087 CAD
£613 GBP
View
B
Retailer 13
-
$1,244 CAD
£701 GBP
View
Most Expensive
NZ Jewellers
bb499261-4238-4c50-b80c-a9e86ae7201d · Oct 30
$2,053 CAD
$1,470 USD
View
Price under review
13 more retailers have this diamond
Prices start from $448 CADSave up to $795 CAD

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
$448 CAD