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Round|Natural|GIA

0.45ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6552276477

Certificate GIA 6552276477

Diamond specifications and retailer prices

From $382 NZD
As of November 6, 2026
Save $851 NZD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,459 NZD at NZ Jewellers · As of September 21, 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 6552276477. Listed at 17 retailers as of November 2, 2026, with a 223% 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
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552276477
Dimensions4.91 × 4.87 × 3.07 mm
L/W Ratio1.01
Key to symbols
Feather, Twinning Wisp
Top View
4.91 mm4.87 mm0.45 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552276477
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°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: $619 NZD|Low: $382 NZD|High: $1,286 NZD|Avg: $781 NZD|-2.8%
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
November 6, 2026
Retailer 8$382 NZD
Retailer 12$413 NZD
Retailer 2$462 NZD
Retailer 1$619 NZD
Retailer 6$619 NZD
Retailer 3$631 NZD
Retailer 10$666 NZD
Retailer 7$732 NZD
Retailer 13$824 NZD
Retailer 11$913 NZD
Retailer 4$938 NZD
Retailer 9$1,066 NZD
Retailer 5$1,234 NZD

19 data points across 13 retailers

17 retailers$382 NZD to $1,234 NZD

A
Cheapest Retailer
-
$382 NZD
A
Retailer 2
-
$413 NZD
View
A
Retailer 3
-
$462 NZD
View
A
Retailer 4
-
$619 NZD
View
A
Retailer 5
-
$619 NZD
View
A
Retailer 6
-
$631 NZD
View
Retailer 7
-
$642 NZD
View
Price last confirmed 50 days ago
A
Retailer 8
-
$666 NZD
View
A
Retailer 9
-
$732 NZD
View
B+
Retailer 10
-
$824 NZD
View
Retailer 11
-
$864 NZD
View
Price last confirmed 45 days ago
B+
Retailer 12
-
$913 NZD
View
B+
Retailer 13
-
$938 NZD
View
Retailer 14
-
$1,028 NZD
View
Price last confirmed 35 days ago
B+
Retailer 15
-
$1,066 NZD
View
B+
Retailer 16
-
$1,234 NZD
View
Most Expensive
NZ Jewellers
9784c380-1b50-44cc-b081-f8013fd6a1e7 · Sep 21
$2,459 NZD
$1,363 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from $382 NZDSave up to $851 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
$382 NZD