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Radiant|Lab Grown|IGI

3.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG733544429

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

Certificate IGI LG733544429

Diamond specifications and retailer prices

From £568 GBP
As of November 6, 2026
Save £846 GBP (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,554 GBP at Rare Carat · As of September 28, 2026
View at Rare Carat

About this 3.05ct lab-grown radiant diamond

This 3.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG733544429 or 733544429. Listed at 7 retailers as of November 5, 2026, with a 149% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733544429
Dimensions10.92 × 6.97 × 4.54 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm6.97 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733544429
Side View
Table 65.0%Crown 41.6°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 65.1%

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 6
Current: £1,554 GBP|Low: £484 GBP|High: £1,587 GBP|Avg: £858 GBP|-2.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£568 GBP
Retailer 5£576 GBP
Retailer 4£589 GBP
Retailer 6£647 GBP
Retailer 7£754 GBP
Retailer 3£1,414 GBP
Rare Carat£1,554 GBP

39 data points across 7 retailers

7 retailers£568 GBP to £1,414 GBP

A
Cheapest Retailer
-
£568 GBP
B+
Retailer 2
-
£576 GBP
View
A
Retailer 3
-
£589 GBP
View
A
Retailer 4
-
£647 GBP
View
A
Retailer 5
-
£754 GBP
View
B
Retailer 6
-
£1,414 GBP
View
Most Expensive
Rare Carat
29V733544429 · Sep 28
£1,554 GBP
$2,080 USD
View
Price last confirmed 39 days ago
6 more retailers have this diamond
Prices start from £568 GBPSave up to £846 GBP

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
3.05ct Radiant
£568 GBP