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Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2468181965

Certificate GIA 2468181965

Diamond specifications and retailer prices

From $417 NZD
As of November 6, 2026
Save $952 NZD (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,462 NZD at NZ Jewellers · As of September 28, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2468181965. Listed at 16 retailers as of November 1, 2026, with a 229% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2468181965
Dimensions4.90 × 4.86 × 3.07 mm
L/W Ratio1.01
Key to symbols
Feather, Twinning Wisp
Top View
4.90 mm4.86 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2468181965
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NDepth 62.9%

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: $417 NZD|Low: $417 NZD|High: $1,414 NZD|Avg: $809 NZD|-6.9%
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 1$417 NZD
Retailer 12$449 NZD
Retailer 3$507 NZD
Retailer 13$556 NZD
Retailer 7$622 NZD
Retailer 4$676 NZD
Retailer 8$729 NZD
Retailer 10$777 NZD
Retailer 6$810 NZD
Retailer 2$897 NZD
Retailer 9$974 NZD
Retailer 11$974 NZD
Retailer 5$1,369 NZD

23 data points across 13 retailers

16 retailers$417 NZD to $1,369 NZD

A
Cheapest Retailer
-
$417 NZD
A
Retailer 2
-
$449 NZD
View
A
Retailer 3
-
$507 NZD
View
A
Retailer 4
-
$556 NZD
View
A
Retailer 5
-
$622 NZD
View
A
Retailer 6
-
$676 NZD
View
Retailer 7
-
$716 NZD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$729 NZD
View
A
Retailer 9
-
$777 NZD
View
B+
Retailer 10
-
$810 NZD
View
Retailer 11
-
$864 NZD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$897 NZD
View
B+
Retailer 13
-
$974 NZD
View
B+
Retailer 14
-
$974 NZD
View
B
Retailer 15
-
$1,369 NZD
View
Most Expensive
NZ Jewellers
06052c80-4d99-45f9-b35b-e860b868b288 · Sep 28
$2,462 NZD
$1,365 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $417 NZDSave up to $952 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
$417 NZD