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Radiant|Lab Grown|IGI

1.33ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG637455664

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

Certificate IGI LG637455664

Diamond specifications and retailer prices

From €412 EUR
£363 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: €412 EUR at Diamond Quarter
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 Diamond Quarter

About this 1.33ct lab-grown radiant diamond

This 1.33ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG637455664 or 637455664. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.33
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG637455664
Dimensions7.86 × 5.46 × 3.57 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.86 mm5.46 mm1.33 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG637455664
Side View
Table 65.0%Crown 44.2°Girdle: MediumPavilion 34.5°Culet: NoneDepth 65.4%

Caratlytics Score

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

Last verified: Nov 2
Current: €406 EUR|Low: €121 EUR|High: €1,226 EUR|Avg: €554 EUR|-48.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
July 28, 2026
Retailer 4€265 EUR
Retailer 6€305 EUR
Retailer 7€323 EUR
Retailer 1€406 EUR
Retailer 5€431 EUR
Retailer 2€448 EUR
Retailer 8€587 EUR
Retailer 9€629 EUR
Retailer 3€1,155 EUR

68 data points across 9 retailers

1 retailer

B+
Diamond Quarter
1.33SI1GLG64364BN · Nov 2
€412 EUR
£363 GBP
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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.

B+
1.33ct Radiant
€412 EUR