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Radiant|Lab Grown|IGI

4.50ct G SI1 Radiant Lab Grown Diamond

GD • G/SI1 • IGI LG688518632

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG688518632

Diamond specifications and retailer prices

From $1,089 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $1,089 USD at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 4.5ct lab-grown radiant diamond

This 4.5ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG688518632 or 688518632. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.50
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG688518632
Dimensions12.04 × 8.07 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.04 mm8.07 mm4.50 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG688518632
Side View
Table 67.0%Crown 39°Girdle: Slightly ThickPavilion 34.8°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $1,089 USD|Low: $1,049 USD|High: $1,733 USD|Avg: $1,300 USD|-37.2%
September 23, 2026
B2C Jewels$1,089 USD

4 data points across 1 retailer

1 retailer

B+
B2C Jewels
27901889 · Oct 30
$1,089 USD
View

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B+
4.50ct Radiant
$1,089 USD