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Radiant|Lab Grown|IGI

1.21ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG669437265

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

Certificate IGI LG669437265

Diamond specifications and retailer prices

From £144 GBP
$192 USD
As of October 27, 2026
Save £757 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £901 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG669437265 or 669437265. Listed at 20 retailers as of October 27, 2026, with prices from £144 to £901, a £757 spread on the same certified stone. Brilliant Earth lists it at £901. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669437265
Dimensions7.53 × 5.30 × 3.43 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm5.30 mm1.21 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669437265
Side View
Table 61.0%Crown 36.9°Girdle: Slightly ThickPavilion 31.9°Culet: NoneDepth 64.7%

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 27
Current: £901 GBP|Low: £161 GBP|High: £939 GBP|Avg: £469 GBP|-4.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11£161 GBP
Retailer 3£242 GBP
Retailer 9£293 GBP
Retailer 5£308 GBP
Retailer 2£326 GBP
Retailer 6£437 GBP
Retailer 10£459 GBP
Retailer 4£628 GBP
Retailer 8£668 GBP
Retailer 7£839 GBP
Brilliant Earth£901 GBP

42 data points across 11 retailers

20 retailers£144 GBP to £901 GBP

A
Cheapest Retailer
-
£144 GBP
$192 USD
A
Retailer 2
-
£161 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£167 GBP
$223 USD
View
A
Retailer 4
-
£179 GBP
$239 USD
View
A
Retailer 5
-
£179 GBP
$239 USD
View
B+
Retailer 6
-
£242 GBP
$322 USD
View
A
Retailer 7
-
£293 GBP
€371 EUR
View
A
Retailer 8
-
£308 GBP
ZAR 6,619 ZAR
View
A
Retailer 9
-
£326 GBP
View
A
Retailer 10
-
£331 GBP
$441 USD
View
A
Retailer 11
-
£437 GBP
A$896 AUD
View
B+
Retailer 12
-
£459 GBP
$611 USD
View
B+
Retailer 13
-
£576 GBP
$767 USD
View
B+
Retailer 14
-
£604 GBP
$804 USD
View
B+
Retailer 15
-
£616 GBP
$821 USD
View
B+
Retailer 16
-
£628 GBP
A$1,287 AUD
View
Retailer 17
-
£668 GBP
$890 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
£839 GBP
View
B
Retailer 19
-
£878 GBP
$1,169 USD
View
Most Expensive
B
Brilliant Earth
14065747A · Oct 29
£901 GBP
$1,200 USD
View
19 more retailers have this diamond
Prices start from £144 GBPSave up to £757 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
£144 GBP