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0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1539173361

Certificate GIA 1539173361

Diamond specifications and retailer prices

From $850 NZD
As of November 6, 2026
Save $2,320 NZD (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,169 NZD at NZ Jewellers · As of November 4, 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 1539173361. Listed at 17 retailers as of November 4, 2026, with prices from $850 to $3,169, a $2,320 spread on the same certified stone. NZ Jewellers lists it at $3,169. 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
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1539173361
Dimensions4.91 × 4.93 × 3.05 mm
L/W Ratio1.00
Culet sizeNone
Top View
4.91 mm4.93 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539173361
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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: $1,106 NZD|Low: $1,046 NZD|High: $2,361 NZD|Avg: $1,483 NZD|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$1,106 NZD
Retailer 7$1,127 NZD
Retailer 5$1,281 NZD
Retailer 2$1,492 NZD
Retailer 6$1,519 NZD
Retailer 4$1,566 NZD
Retailer 3$2,331 NZD

44 data points across 7 retailers

17 retailers$850 NZD to $3,169 NZD

A
Cheapest Retailer
-
$850 NZD
A
Retailer 2
-
$916 NZD
View
A
Retailer 3
-
$952 NZD
View
Retailer 4
-
$987 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$987 NZD
View
B+
Retailer 6
-
$1,057 NZD
View
B+
Retailer 7
-
$1,106 NZD
View
B+
Retailer 8
-
$1,122 NZD
View
B+
Retailer 9
-
$1,136 NZD
View
B+
Retailer 10
-
$1,136 NZD
View
B+
Retailer 11
-
$1,173 NZD
View
B
Retailer 12
-
$1,281 NZD
View
B+
Retailer 13
-
$1,492 NZD
View
Retailer 14
-
$1,519 NZD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$1,566 NZD
View
B
Retailer 16
-
$2,331 NZD
View
Most Expensive
B
NZ Jewellers
160f74b9-cc40-462d-ab1a-a4f7c15d4546 · Nov 4
$3,169 NZD
$1,757 USD
View
16 more retailers have this diamond
Prices start from $850 NZDSave up to $2,320 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
$850 NZD