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Radiant|Lab Grown|IGI

1.20ct I VS1 Radiant Lab Grown Diamond

EX • I/VS1 • IGI LG653410838

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

Certificate IGI LG653410838

Diamond specifications and retailer prices

From £159 GBP
As of November 3, 2026
Save £1,072 GBP (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,230 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG653410838 or 653410838. Listed at 14 retailers as of November 3, 2026, with prices from £159 to £1,230, a £1,072 spread on the same certified stone. Do Amore Diamonds lists it at £1,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653410838
Dimensions7.53 × 5.25 × 3.48 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm5.25 mm1.20 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653410838
Side View
Table 68.0%Crown 40.8°Girdle: STK-THKPavilion 34.5°Culet: NoneDepth 66.3%

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: Nov 3
Current: £1,230 GBP|Low: £159 GBP|High: £1,230 GBP|Avg: £540 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7£159 GBP
Retailer 10£224 GBP
Retailer 8£283 GBP
Retailer 5£302 GBP
Retailer 9£344 GBP
Retailer 12£390 GBP
Retailer 6£538 GBP
Retailer 4£541 GBP
Retailer 11£691 GBP
Retailer 2£818 GBP
Retailer 3£875 GBP
Do Amore Diamonds£1,230 GBP

20 data points across 12 retailers

14 retailers£159 GBP to £1,230 GBP

A
Cheapest Retailer
-
£159 GBP
Retailer 2
-
£159 GBP
View
Price last confirmed 32 days ago
A
Retailer 3
-
£159 GBP
View
A
Retailer 4
-
£224 GBP
View
A
Retailer 5
-
£283 GBP
View
A
Retailer 6
-
£302 GBP
View
B+
Retailer 7
-
£344 GBP
View
Retailer 8
-
£390 GBP
View
Price last confirmed 76 days ago
B
Retailer 9
-
£538 GBP
View
Retailer 10
-
£562 GBP
View
Price last confirmed 35 days ago
B+
Retailer 11
-
£562 GBP
View
B
Retailer 12
-
£691 GBP
View
B
Retailer 13
-
£818 GBP
View
Most Expensive
B
Do Amore Diamonds
27-3F45EF9F2 · Nov 4
£1,230 GBP
$1,650 USD
View
13 more retailers have this diamond
Prices start from £159 GBPSave up to £1,072 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
£159 GBP