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0.45ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG455034330

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455034330

Diamond specifications and retailer prices

From $435 NZD
$245 USD
As of November 1, 2026
Save $1,729 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,163 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.45ct lab-grown round diamond

This 0.45ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455034330 or 455034330. Listed at 10 retailers as of November 1, 2026, with prices from $435 to $2,163, a $1,729 spread on the same certified stone. MOH London lists it at $2,163. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455034330
Dimensions4.90 × 4.94 × 3.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Blue Nuance
Top View
4.90 mm4.94 mm0.45 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455034330
Side View
Table 59.0%Crown 36.2°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
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 1
Current: $2,163 NZD|Low: $419 NZD|High: $2,190 NZD|Avg: $879 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$435 NZD
Retailer 3$479 NZD
Retailer 8$506 NZD
Retailer 6$539 NZD
Retailer 9$774 NZD
Retailer 7$907 NZD
Retailer 2$1,023 NZD
Retailer 4$1,030 NZD
MOH London$2,163 NZD

41 data points across 9 retailers

10 retailers$435 NZD to $2,163 NZD

A
Cheapest Retailer
-
$435 NZD
$245 USD
A
Retailer 2
-
$479 NZD
$270 USD
View
A
Retailer 3
-
$506 NZD
$285 USD
View
Retailer 4
-
$539 NZD
$304 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$539 NZD
$304 USD
View
B+
Retailer 6
-
$907 NZD
$511 USD
View
B
Retailer 7
-
$1,023 NZD
£454 GBP
View
B
Retailer 8
-
$1,030 NZD
€553 EUR
View
B
Retailer 9
-
$1,735 NZD
$978 USD
View
Most Expensive
B
MOH London
LG455034330 · Nov 1
$2,163 NZD
£960 GBP
View
9 more retailers have this diamond
Prices start from $435 NZDSave up to $1,729 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
$435 NZD