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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG725510975

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

Certificate IGI LG725510975

Diamond specifications and retailer prices

From £110 GBP
As of November 6, 2026
Save £527 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £637 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG725510975 or 725510975. Listed at 16 retailers as of November 4, 2026, with prices from £110 to £637, a £527 spread on the same certified stone. MOH London lists it at £637. 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

1.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG725510975
Dimensions7.66 × 4.81 × 3.04 mm
L/W Ratio1.59
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.66 mm4.81 mm1.00 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG725510975
Side View
Table 59.0%Crown 39.5°Girdle: MED-STKPavilion 31.2°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £637 GBP|Low: £104 GBP|High: £657 GBP|Avg: £290 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 15£110 GBP
Retailer 13£128 GBP
Retailer 4£137 GBP
Retailer 14£137 GBP
Retailer 2£176 GBP
Retailer 6£214 GBP
Retailer 9£233 GBP
Retailer 11£236 GBP
Retailer 7£252 GBP
Retailer 12£259 GBP
Retailer 10£353 GBP
Retailer 5£374 GBP
Retailer 3£439 GBP
Retailer 8£560 GBP
MOH London£637 GBP

40 data points across 15 retailers

16 retailers£110 GBP to £637 GBP

A
Cheapest Retailer
-
£110 GBP
A
Retailer 2
-
£128 GBP
View
Retailer 3
-
£137 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
£137 GBP
View
A
Retailer 5
-
£176 GBP
View
B+
Retailer 6
-
£214 GBP
View
B+
Retailer 7
-
£233 GBP
View
A
Retailer 8
-
£236 GBP
View
B+
Retailer 9
-
£252 GBP
View
B+
Retailer 10
-
£259 GBP
View
Retailer 11
-
£340 GBP
View
Price last confirmed 40 days ago
B
Retailer 12
-
£353 GBP
View
B
Retailer 13
-
£374 GBP
View
B
Retailer 14
-
£439 GBP
View
B
Retailer 15
-
£560 GBP
View
Most Expensive
B
MOH London
LG725510975 · Nov 4
£637 GBP
View
15 more retailers have this diamond
Prices start from £110 GBPSave up to £527 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
1.00ct Radiant
£110 GBP