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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 $245 USD
As of October 29, 2026
Save $977 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,222 USD at MOH London · As of October 26, 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 October 26, 2026, with prices from $245 to $1,222, a $977 spread on the same certified stone. MOH London lists it at $1,222. 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
Color
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: Oct 29
Current: $1,222 USD|Low: $236 USD|High: $1,234 USD|Avg: $492 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5$245 USD
Retailer 2$270 USD
Retailer 8$285 USD
Retailer 6$304 USD
Retailer 9$436 USD
Retailer 7$511 USD
Retailer 3$577 USD
Retailer 4$581 USD
MOH London$1,222 USD

41 data points across 9 retailers

10 retailers$245 USD to $1,222 USD

A
Cheapest Retailer
-
$245 USD
A
Retailer 2
-
$270 USD
View
A
Retailer 3
-
$285 USD
View
B+
Retailer 4
-
$304 USD
View
B+
Retailer 5
-
$304 USD
View
B
Retailer 6
-
$511 USD
View
B
Retailer 7
-
$577 USD
£454 GBP
View
B
Retailer 8
-
$581 USD
€553 EUR
View
B
Retailer 9
-
$978 USD
View
Most Expensive
B
MOH London
LG455034330 · Oct 26
$1,222 USD
£962 GBP
View
9 more retailers have this diamond
Prices start from $245 USDSave up to $977 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
$245 USD