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Radiant|Lab Grown|IGI

4.64ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG660435797

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

Certificate IGI LG660435797

Diamond specifications and retailer prices

From £903 GBP
$1,210 USD
As of October 30, 2026
Save £1,306 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,209 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.64ct lab-grown radiant diamond

This 4.64ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660435797 or 660435797. Listed at 6 retailers as of October 28, 2026, with prices from £903 to £2,209, a £1,306 spread on the same certified stone. Rare Carat lists it at £2,209. 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

4.64
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660435797
Dimensions11.61 × 8.15 × 5.64 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.61 mm8.15 mm4.64 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660435797
Side View
Table 68.0%Crown 45.2°Girdle: Slightly ThickPavilion 35.3°Culet: NoneDepth 69.2%

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 30
Current: £2,209 GBP|Low: £903 GBP|High: £81,380 GBP|Avg: £13,146 GBP|+5.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 3£903 GBP
Retailer 2£951 GBP
Retailer 5£1,115 GBP
Retailer 6£1,929 GBP
Retailer 4£2,133 GBP
Rare Carat£2,209 GBP
Retailer 8£4,799 GBP
Retailer 7£81,380 GBP

5 data points across 8 retailers

6 retailers£903 GBP to £2,209 GBP

A
Cheapest Retailer
-
£903 GBP
$1,210 USD
A
Retailer 2
-
£951 GBP
View
B+
Retailer 3
-
£1,115 GBP
$1,494 USD
View
B
Retailer 4
-
£1,929 GBP
$2,584 USD
View
B
Retailer 5
-
£2,133 GBP
$2,858 USD
View
Most Expensive
B
Rare Carat
27252 · Oct 28
£2,209 GBP
$2,960 USD
View
5 more retailers have this diamond
Prices start from £903 GBPSave up to £1,306 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
4.64ct Radiant
£903 GBP