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Radiant|Lab Grown|IGI

1.21ct D VS2 Radiant Lab Grown Diamond

EX • D/VS2 • IGI LG595359843

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

Certificate IGI LG595359843

Diamond specifications and retailer prices

From £181 GBP
As of November 4, 2026
Save £810 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,733 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG595359843 or 595359843. Listed at 11 retailers as of November 2, 2026, with a 448% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG595359843
Dimensions7.62 × 5.34 × 3.59 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.62 mm5.34 mm1.21 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG595359843
Side View
Table 64.0%Crown 42.1°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.2%

Caratlytics Score

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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 4
Current: £1,733 GBP|Low: £138 GBP|High: £1,733 GBP|Avg: £606 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 12
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Retailer 16
November 2, 2026
Retailer 4£138 GBP
Retailer 10£181 GBP
Retailer 14£202 GBP
Retailer 13£210 GBP
Retailer 16£286 GBP
Retailer 12£376 GBP
Retailer 15£401 GBP
Retailer 3£448 GBP
Retailer 8£507 GBP
Retailer 9£722 GBP
Retailer 7£770 GBP
Retailer 11£795 GBP
Retailer 6£929 GBP
Retailer 5£970 GBP
Retailer 2£990 GBP
Do Amore Diamonds£1,733 GBP

12 data points across 16 retailers

11 retailers£181 GBP to £990 GBP

A
Cheapest Retailer
-
£181 GBP
A
Retailer 2
-
£202 GBP
View
Final sale: no returns
A
Retailer 3
-
£210 GBP
View
A
Retailer 4
-
£286 GBP
View
B+
Retailer 5
-
£376 GBP
View
B+
Retailer 6
-
£401 GBP
View
B
Retailer 7
-
£722 GBP
View
B
Retailer 8
-
£737 GBP
View
B
Retailer 9
-
£795 GBP
View
B
Retailer 10
-
£990 GBP
View
Most Expensive
Do Amore Diamonds
27-3EFADFF3C · Nov 4
£1,733 GBP
$2,340 USD
View
Price under review
10 more retailers have this diamond
Prices start from £181 GBPSave up to £810 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
1.21ct Radiant
£181 GBP