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Round|Natural|GIA

1.45ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1519713908

Certificate GIA 1519713908

Diamond specifications and retailer prices

From $4,154 NZD
As of November 5, 2026
Save $1,003 NZD (19%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,697 NZD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.45ct natural round diamond

This 1.45ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1519713908. Listed at 8 retailers as of November 5, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.45
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1519713908
Dimensions7.41 × 7.40 × 4.34 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Crystal
Top View
7.41 mm7.40 mm1.45 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519713908
Side View
Table 62.0%Crown 33°GirdlePavilion 41°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,157 NZD|Low: $3,757 NZD|High: $5,196 NZD|Avg: $4,526 NZD|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4$3,757 NZD
Retailer 3$4,154 NZD
Retailer 2$5,077 NZD
Retailer 1$5,157 NZD

24 data points across 4 retailers

8 retailers$4,154 NZD to $5,157 NZD

B+
Cheapest Retailer
-
$4,154 NZD
Retailer 2
-
$4,161 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$4,161 NZD
View
Price last confirmed 29 days ago
Retailer 4
-
$4,353 NZD
View
Price last confirmed 38 days ago
Retailer 5
-
$4,801 NZD
View
Price last confirmed 38 days ago
B
Retailer 6
-
$5,077 NZD
View
B
Retailer 7
-
$5,157 NZD
View
Most Expensive
NZ Jewellers
9cc915c6-791f-4bda-9685-d12373569099 · Sep 26
$8,697 NZD
$4,889 USD
View
Price last confirmed 40 days ago
7 more retailers have this diamond
Prices start from $4,154 NZDSave up to $1,003 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.

B+
1.45ct Round
$4,154 NZD