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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1515699351

Certificate GIA 1515699351

Diamond specifications and retailer prices

From $536 NZD
As of November 6, 2026
Save $2,268 NZD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,939 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1515699351. Listed at 23 retailers as of November 4, 2026, with a 423% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1515699351
Dimensions4.85 × 4.90 × 3.07 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal
Top View
4.85 mm4.90 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1515699351
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NDepth 63.0%

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: $2,803 NZD|Low: $536 NZD|High: $2,881 NZD|Avg: $1,039 NZD|-2.7%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 9$536 NZD
Retailer 3$731 NZD
Retailer 4$783 NZD
Retailer 10$785 NZD
Retailer 8$799 NZD
Retailer 16$815 NZD
Retailer 5$844 NZD
Retailer 2$851 NZD
Retailer 11$943 NZD
Retailer 13$951 NZD
Retailer 15$967 NZD
Retailer 6$1,118 NZD
Retailer 14$1,138 NZD
Retailer 12$1,212 NZD
Retailer 7$1,697 NZD
NZ Jewellers$2,803 NZD

20 data points across 16 retailers

23 retailers$536 NZD to $2,803 NZD

A
Cheapest Retailer
-
$536 NZD
A
Retailer 2
-
$646 NZD
View
A
Retailer 3
-
$731 NZD
View
A
Retailer 4
-
$783 NZD
View
A
Retailer 5
-
$785 NZD
View
Retailer 6
-
$799 NZD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$815 NZD
View
Retailer 8
-
$826 NZD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$844 NZD
View
A
Retailer 10
-
$851 NZD
View
Retailer 11
-
$884 NZD
View
Price last confirmed 38 days ago
Retailer 12
-
$888 NZD
View
Price last confirmed 64 days ago
B+
Retailer 13
-
$943 NZD
View
A
Retailer 14
-
$951 NZD
View
B+
Retailer 15
-
$967 NZD
View
B+
Retailer 16
-
$1,118 NZD
View
B+
Retailer 17
-
$1,138 NZD
View
B+
Retailer 18
-
$1,212 NZD
View
Retailer 19
-
$1,218 NZD
View
Price last confirmed 38 days ago
B
Retailer 20
-
$1,697 NZD
View
Retailer 21
-
$2,529 NZD
View
Price last confirmed 65 days ago
B
Retailer 22
-
$2,803 NZD
View
Most Expensive
NZ Jewellers
401d7a27-a1be-4169-897d-adca74510d29 · Sep 28
$2,939 NZD
$1,629 USD
View
Price last confirmed 39 days ago
22 more retailers have this diamond
Prices start from $536 NZDSave up to $2,268 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
$536 NZD