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0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7561570321

Certificate GIA 7561570321

Diamond specifications and retailer prices

From $538 NZD
As of November 6, 2026
Save $1,201 NZD (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,739 NZD at MOH London · As of November 4, 2026
View at MOH London

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 7561570321. Listed at 7 retailers as of November 4, 2026, with prices from $538 to $1,739, a $1,201 spread on the same certified stone. MOH London lists it at $1,739. 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
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7561570321
Dimensions4.90 × 4.92 × 3.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
4.90 mm4.92 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7561570321
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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: $1,739 NZD|Low: $538 NZD|High: $1,750 NZD|Avg: $1,018 NZD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$538 NZD
Retailer 5$740 NZD
Retailer 4$920 NZD
Retailer 6$1,001 NZD
Retailer 3$1,214 NZD
MOH London$1,739 NZD

25 data points across 6 retailers

7 retailers$538 NZD to $1,739 NZD

A
Cheapest Retailer
-
$538 NZD
A
Retailer 2
-
$740 NZD
View
A
Retailer 3
-
$785 NZD
View
A
Retailer 4
-
$920 NZD
View
B+
Retailer 5
-
$1,001 NZD
View
B+
Retailer 6
-
$1,214 NZD
View
Most Expensive
B
MOH London
B21830DFB · Nov 4
$1,739 NZD
£759 GBP
View
6 more retailers have this diamond
Prices start from $538 NZDSave up to $1,201 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
$538 NZD