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Radiant|Lab Grown|IGI

1.20ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG530293341

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

Certificate IGI LG530293341

Diamond specifications and retailer prices

From £177 GBP
As of November 6, 2026
Save £802 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £979 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG530293341 or 530293341. Listed at 16 retailers as of November 6, 2026, with prices from £177 to £979, a £802 spread on the same certified stone. Reve Diamonds lists it at £979. 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

1.20
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530293341
Dimensions7.38 × 5.35 × 3.48 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.38 mm5.35 mm1.20 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530293341
Side View
Table 65.5%Crown 37.2°Girdle: MediumPavilionCulet: NoneDepth 65.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £410 GBP|Low: £170 GBP|High: £979 GBP|Avg: £471 GBP|+2.2%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 10£177 GBP
Retailer 6£198 GBP
Retailer 14£205 GBP
Retailer 2£220 GBP
Retailer 11£220 GBP
Retailer 3£310 GBP
Retailer 13£370 GBP
Retailer 4£397 GBP
Retailer 1£410 GBP
Retailer 7£501 GBP
Retailer 12£705 GBP
Retailer 9£708 GBP
Retailer 5£744 GBP
Retailer 8£880 GBP
Reve Diamonds£979 GBP

43 data points across 15 retailers

16 retailers£177 GBP to £979 GBP

A
Cheapest Retailer
-
£177 GBP
A
Retailer 2
-
£198 GBP
View
Final sale: no returns
A
Retailer 3
-
£205 GBP
View
Retailer 4
-
£220 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£220 GBP
View
A
Retailer 6
-
£310 GBP
View
B+
Retailer 7
-
£370 GBP
View
B+
Retailer 8
-
£397 GBP
View
B+
Retailer 9
-
£410 GBP
View
B+
Retailer 10
-
£501 GBP
View
B+
Retailer 11
-
£516 GBP
View
B
Retailer 12
-
£705 GBP
View
B
Retailer 13
-
£708 GBP
View
B
Retailer 14
-
£744 GBP
View
Retailer 15
-
£880 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Reve Diamonds
64EBC71C1 · Nov 6
£979 GBP
$1,311 USD
View
15 more retailers have this diamond
Prices start from £177 GBPSave up to £802 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
1.20ct Radiant
£177 GBP