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Round|Lab Grown|IGI

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 €219 EUR
$245 USD
As of November 1, 2026
Save €872 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,091 EUR 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 €219 to €1,091, a €872 spread on the same certified stone. MOH London lists it at €1,091. 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: Nov 1
Current: €1,091 EUR|Low: €211 EUR|High: €1,105 EUR|Avg: €442 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5€219 EUR
Retailer 3€242 EUR
Retailer 8€255 EUR
Retailer 6€272 EUR
Retailer 9€390 EUR
Retailer 7€457 EUR
Retailer 2€516 EUR
Retailer 4€520 EUR
MOH London€1,091 EUR

42 data points across 9 retailers

10 retailers€219 EUR to €1,091 EUR

A
Cheapest Retailer
-
€219 EUR
$245 USD
A
Retailer 2
-
€242 EUR
$270 USD
View
A
Retailer 3
-
€255 EUR
$285 USD
View
Retailer 4
-
€272 EUR
$304 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€272 EUR
$304 USD
View
B+
Retailer 6
-
€457 EUR
$511 USD
View
B
Retailer 7
-
€516 EUR
£454 GBP
View
B
Retailer 8
-
€520 EUR
View
B
Retailer 9
-
€875 EUR
$978 USD
View
Most Expensive
B
MOH London
LG455034330 · Nov 1
€1,091 EUR
£960 GBP
View
9 more retailers have this diamond
Prices start from €219 EURSave up to €872 EUR

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
€219 EUR