Radiant|Lab Grown|IGI

1.35ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG564354983

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

Certificate IGI LG564354983

Diamond specifications and retailer prices

From £165 GBP
$221 USD
As of October 30, 2026
Save £1,626 GBP (91%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,791 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.35ct lab-grown radiant diamond

This 1.35ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG564354983 or 564354983. Listed at 21 retailers as of October 27, 2026, with prices from £165 to £1,791, a £1,626 spread on the same certified stone. Queensmith lists it at £1,791. 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

1.35
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG564354983
Dimensions7.76 × 5.51 × 3.75 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.76 mm5.51 mm1.35 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG564354983
Side View
Table 65.0%Crown 39.6°Girdle: MediumPavilion 36.5°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £903 GBP|Low: £165 GBP|High: £1,582 GBP|Avg: £476 GBP|-6.4%
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November 1, 2026
Retailer 19£165 GBP
Retailer 8£184 GBP
Retailer 17£191 GBP
Retailer 5£204 GBP
Retailer 9£204 GBP
Retailer 12£238 GBP
Retailer 14£291 GBP
Retailer 10£306 GBP
Retailer 15£387 GBP
Retailer 3£389 GBP
Retailer 13£424 GBP
Retailer 16£550 GBP
Retailer 18£554 GBP
Retailer 4£659 GBP
Retailer 2£725 GBP
Retailer 11£852 GBP
Retailer 1£903 GBP
Retailer 7£940 GBP
Retailer 6£1,582 GBP

44 data points across 19 retailers

21 retailers£165 GBP to £1,791 GBP

A
Cheapest Retailer
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£165 GBP
$221 USD
A
Retailer 2
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£184 GBP
$246 USD
View
Final sale: no returns
A
Retailer 3
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£191 GBP
$256 USD
View
Retailer 4
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£204 GBP
$274 USD
View
Price last confirmed 7 days ago
A
Retailer 5
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£204 GBP
$274 USD
View
A
Retailer 6
-
£238 GBP
View
B+
Retailer 7
-
£291 GBP
$390 USD
View
A
Retailer 8
-
£306 GBP
HK$3,200 HKD
View
A
Retailer 9
-
£387 GBP
ZAR 8,384 ZAR
View
A
Retailer 10
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£389 GBP
$521 USD
View
A
Retailer 11
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£424 GBP
View
A
Retailer 12
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£550 GBP
A$1,134 AUD
View
A
Retailer 13
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£554 GBP
$742 USD
View
B+
Retailer 14
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£659 GBP
$883 USD
View
B+
Retailer 15
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£725 GBP
$971 USD
View
B+
Retailer 16
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£852 GBP
$1,142 USD
View
B+
Retailer 17
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£903 GBP
View
B+
Retailer 18
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£940 GBP
$1,259 USD
View
Retailer 19
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£944 GBP
View
Price last confirmed 18 days ago
B
Retailer 20
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£1,582 GBP
$2,120 USD
View
Most Expensive
B
Queensmith
LG564354983 · Oct 27
£1,791 GBP
View
20 more retailers have this diamond
Prices start from £165 GBPSave up to £1,626 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
1.35ct Radiant
£165 GBP