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Radiant|Lab Grown|IGI

1.35ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG703511325

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

Certificate IGI LG703511325

Diamond specifications and retailer prices

From £294 GBP
$394 USD
As of October 30, 2026
Save £701 GBP (70%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,093 GBP at MOH London · As of October 19, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG703511325 or 703511325. Listed at 7 retailers as of October 29, 2026, with a 238% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG703511325
Dimensions8.20 × 5.47 × 3.59 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm5.47 mm1.35 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG703511325
Side View
Table 63.0%Crown 35.4°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,093 GBP|Low: £293 GBP|High: £1,100 GBP|Avg: £578 GBP|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6£294 GBP
Retailer 4£407 GBP
Retailer 5£437 GBP
Retailer 2£479 GBP
Retailer 3£530 GBP
Retailer 7£995 GBP
MOH London£1,093 GBP

32 data points across 7 retailers

7 retailers£294 GBP to £995 GBP

B+
Cheapest Retailer
-
£294 GBP
$394 USD
B
Retailer 2
-
£407 GBP
$546 USD
View
B
Retailer 3
-
£437 GBP
$585 USD
View
B
Retailer 4
-
£479 GBP
View
Retailer 5
-
£530 GBP
$710 USD
View
Price last confirmed 9 days ago
C
Retailer 6
-
£995 GBP
$1,333 USD
View
Most Expensive
MOH London
LG703511325 · Oct 19
£1,093 GBP
View
Price last confirmed 11 days ago
6 more retailers have this diamond
Prices start from £294 GBPSave up to £701 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.

B+
1.35ct Radiant
£294 GBP