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Round|Natural|GIA

0.45ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5453674935

Certificate GIA 5453674935

Diamond specifications and retailer prices

From $415 NZD
As of November 6, 2026
Save $859 NZD (67%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,105 NZD at NZ Jewellers · As of October 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5453674935. Listed at 16 retailers as of November 4, 2026, with a 207% 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5453674935
Dimensions4.87 × 4.91 × 3.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.87 mm4.91 mm0.45 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5453674935
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: Nov 6
Current: $415 NZD|Low: $332 NZD|High: $1,279 NZD|Avg: $677 NZD
Retailer 1
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 6, 2026
Retailer 4$334 NZD
Retailer 1$415 NZD
Retailer 14$483 NZD
Retailer 5$487 NZD
Retailer 7$501 NZD
Retailer 13$556 NZD
Retailer 8$696 NZD
Retailer 6$743 NZD
Retailer 9$756 NZD
Retailer 2$787 NZD
Retailer 3$823 NZD
Retailer 10$859 NZD
Retailer 11$924 NZD
Retailer 15$956 NZD
Retailer 12$1,274 NZD

37 data points across 15 retailers

16 retailers$415 NZD to $1,274 NZD

A
Cheapest Retailer
-
$415 NZD
Retailer 2
-
$465 NZD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$483 NZD
View
Retailer 4
-
$487 NZD
View
Price last confirmed 29 days ago
Retailer 5
-
$523 NZD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$556 NZD
View
Retailer 7
-
$626 NZD
View
Price last confirmed 35 days ago
A
Retailer 8
-
$696 NZD
View
Retailer 9
-
$743 NZD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
$756 NZD
View
B+
Retailer 11
-
$787 NZD
View
B+
Retailer 12
-
$859 NZD
View
B+
Retailer 13
-
$924 NZD
View
B+
Retailer 14
-
$956 NZD
View
B
Retailer 15
-
$1,274 NZD
View
Most Expensive
NZ Jewellers
61140e6e-313c-4aea-8a0e-58ef328bf53b · Oct 3
$2,105 NZD
$1,167 USD
View
Price last confirmed 34 days ago
15 more retailers have this diamond
Prices start from $415 NZDSave up to $859 NZD

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
$415 NZD