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Radiant|Lab Grown|GCAL

1.20ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • GCAL 321181341

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

Certificate GCAL 321181341

Diamond specifications and retailer prices

From £152 GBP
As of November 2, 2026
Save £683 GBP (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £835 GBP at MOH London · As of November 1, 2026
View at MOH London

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 GCAL 321181341. Listed at 7 retailers as of November 1, 2026, with prices from £152 to £835, a £683 spread on the same certified stone. MOH London lists it at £835. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle30.4°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 321181341
Dimensions7.57 × 5.16 × 3.32 mm
L/W Ratio1.47
Culet sizeNone
Top View
7.57 mm5.16 mm1.20 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 321181341
Side View
Table 62.0%Crown 34.5°Girdle: STK-THKPavilion 30.4°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £835 GBP|Low: £146 GBP|High: £846 GBP|Avg: £424 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£152 GBP
Retailer 6£177 GBP
Retailer 7£245 GBP
Retailer 5£326 GBP
Retailer 2£609 GBP
Retailer 4£670 GBP
MOH London£835 GBP

12 data points across 7 retailers

7 retailers£152 GBP to £835 GBP

A
Cheapest Retailer
-
£152 GBP
A
Retailer 2
-
£177 GBP
View
A
Retailer 3
-
£245 GBP
View
A
Retailer 4
-
£326 GBP
View
B
Retailer 5
-
£609 GBP
View
B
Retailer 6
-
£670 GBP
View
Most Expensive
B
MOH London
321181341 · Nov 1
£835 GBP
View
6 more retailers have this diamond
Prices start from £152 GBPSave up to £683 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
£152 GBP