Round|Natural|IGI

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 813687916

Shape and cutting style on the report: Round brilliant

Certificate IGI 813687916

Diamond specifications and retailer prices

From $167 USD
As of November 6, 2026
Save $926 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,093 USD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 813687916. Listed at 14 retailers as of November 4, 2026, with prices from $167 to $1,093, a $926 spread on the same certified stone. NZ Jewellers lists it at $1,093. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 813687916
Dimensions4.94 × 4.99 × 3.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
4.94 mm4.99 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 813687916
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,093 USD|Low: $167 USD|High: $1,107 USD|Avg: $401 USD|-1.3%
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
November 6, 2026
Retailer 2$167 USD
Retailer 5$241 USD
Retailer 6$269 USD
Retailer 12$270 USD
Retailer 11$282 USD
Retailer 3$311 USD
Retailer 14$325 USD
Retailer 10$349 USD
Retailer 8$387 USD
Retailer 9$415 USD
Retailer 7$485 USD
Retailer 4$546 USD
Retailer 13$556 USD
NZ Jewellers$1,093 USD

23 data points across 14 retailers

14 retailers$167 USD to $1,093 USD

A
Cheapest Retailer
-
$167 USD
A
Retailer 2
-
$241 USD
View
A
Retailer 3
-
$269 USD
View
A
Retailer 4
-
$270 USD
View
A
Retailer 5
-
$282 USD
View
A
Retailer 6
-
$311 USD
View
A
Retailer 7
-
$325 USD
View
B+
Retailer 8
-
$349 USD
View
B+
Retailer 9
-
$387 USD
View
A
Retailer 10
-
$415 USD
View
B+
Retailer 11
-
$485 USD
View
B
Retailer 12
-
$546 USD
View
B+
Retailer 13
-
$556 USD
View
Most Expensive
B
NZ Jewellers
ad866bcd-340a-4b6b-b2f6-6286ce64cc9e · Nov 4
$1,093 USD
View
13 more retailers have this diamond
Prices start from $167 USDSave up to $926 USD

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
$167 USD