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Radiant|Lab Grown|IGI

0.83ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG728569738

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

Certificate IGI LG728569738

Diamond specifications and retailer prices

From £111 GBP
$148 USD
As of October 28, 2026
Save £270 GBP (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £381 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.83ct lab-grown radiant diamond

This 0.83ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG728569738 or 728569738. Listed at 9 retailers as of October 28, 2026, with prices from £111 to £381, a £270 spread on the same certified stone. NZ Jewellers lists it at £381. 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

0.83
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728569738
Dimensions6.54 × 4.55 × 3.12 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.54 mm4.55 mm0.83 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728569738
Side View
Table 70.0%Crown 46.6°Girdle: ThickPavilion 35.3°Culet: NoneDepth 68.6%

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 28
Current: £381 GBP|Low: £111 GBP|High: £511 GBP|Avg: £255 GBP
NZ Jewellers
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
October 29, 2026
Retailer 14£111 GBP
Retailer 7£119 GBP
Retailer 13£135 GBP
Retailer 8£173 GBP
Retailer 10£173 GBP
Retailer 3£182 GBP
Retailer 2£197 GBP
Retailer 11£227 GBP
Retailer 12£244 GBP
Retailer 5£288 GBP
Retailer 9£299 GBP
NZ Jewellers£381 GBP
Retailer 4£472 GBP
Retailer 6£511 GBP

2 data points across 14 retailers

9 retailers£111 GBP to £381 GBP

A
Cheapest Retailer
-
£111 GBP
$148 USD
A
Retailer 2
-
£119 GBP
$158 USD
View
A
Retailer 3
-
£135 GBP
HK$1,400 HKD
View
A
Retailer 4
-
£173 GBP
View
A
Retailer 5
-
£197 GBP
View
B+
Retailer 6
-
£227 GBP
$302 USD
View
B+
Retailer 7
-
£244 GBP
View
B+
Retailer 8
-
£299 GBP
$398 USD
View
Most Expensive
B
NZ Jewellers
509d9d84-cbf0-49ca-8b63-3265d0f492a0 · Oct 28
£381 GBP
$507 USD
View
8 more retailers have this diamond
Prices start from £111 GBPSave up to £270 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
0.83ct Radiant
£111 GBP