Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5476366359

Certificate GIA 5476366359

Diamond specifications and retailer prices

From $330 USD
As of November 4, 2026
Save $1,080 USD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,436 USD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5476366359. Listed at 16 retailers as of November 4, 2026, with a 327% 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

0.45
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5476366359
Dimensions4.90 × 4.86 × 3.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.90 mm4.86 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5476366359
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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 4
Current: $1,410 USD|Low: $330 USD|High: $1,436 USD|Avg: $560 USD|-1.8%
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
November 6, 2026
Retailer 7$330 USD
Retailer 3$333 USD
Retailer 11$359 USD
Retailer 10$372 USD
Retailer 9$377 USD
Retailer 5$401 USD
Retailer 4$449 USD
Retailer 13$454 USD
Retailer 2$471 USD
Retailer 12$509 USD
Retailer 6$669 USD
Retailer 8$848 USD
NZ Jewellers$1,410 USD

40 data points across 13 retailers

16 retailers$330 USD to $1,410 USD

A
Cheapest Retailer
-
$330 USD
A
Retailer 2
-
$333 USD
View
Retailer 3
-
$339 USD
View
Price last confirmed 51 days ago
Retailer 4
-
$359 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$372 USD
View
A
Retailer 6
-
$377 USD
View
B+
Retailer 7
-
$449 USD
View
B+
Retailer 8
-
$454 USD
View
Retailer 9
-
$457 USD
View
Price last confirmed 53 days ago
B+
Retailer 10
-
$471 USD
View
B+
Retailer 11
-
$509 USD
View
B+
Retailer 12
-
$561 USD
View
B+
Retailer 13
-
$669 USD
View
B
Retailer 14
-
$848 USD
View
B
Retailer 15
-
$1,410 USD
View
Most Expensive
NZ Jewellers
002be952-fe62-4d83-9b94-e61d8dcc6a1b · Sep 15
$1,436 USD
View
Price last confirmed 51 days ago
15 more retailers have this diamond
Prices start from $330 USDSave up to $1,080 USD

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
0.45ct Round
$330 USD