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Radiant|Lab Grown|IGI

11.21ct E VS1 Radiant Lab Grown Diamond

VG • E/VS1 • IGI LG803620749

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

Certificate IGI LG803620749

Diamond specifications and retailer prices

From £1,552 GBP
$2,079 USD
As of October 30, 2026
Save £4,900 GBP (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,452 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 11.21ct lab-grown radiant diamond

This 11.21ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG803620749 or 803620749. Listed at 21 retailers as of October 30, 2026, with prices from £1,552 to £6,452, a £4,900 spread on the same certified stone. Adiamor lists it at £6,452. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

11.21
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle26.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803620749
Dimensions21.19 × 9.94 × 5.87 mm
L/W Ratio2.13
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
21.19 mm9.94 mm11.21 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803620749
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 26.4°Culet: NoneDepth 59.1%

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: Oct 30
Current: £6,452 GBP|Low: £1,453 GBP|High: £6,452 GBP|Avg: £3,144 GBP
Adiamor
Retailer 2
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Retailer 21
November 1, 2026
Retailer 20£1,453 GBP
Retailer 21£1,552 GBP
Retailer 17£1,688 GBP
Retailer 8£1,737 GBP
Retailer 4£1,800 GBP
Retailer 11£1,800 GBP
Retailer 6£1,926 GBP
Retailer 9£2,192 GBP
Retailer 3£2,475 GBP
Retailer 13£2,477 GBP
Retailer 16£2,787 GBP
Retailer 10£2,816 GBP
Retailer 18£2,888 GBP
Retailer 15£3,023 GBP
Retailer 2£3,336 GBP
Retailer 12£3,412 GBP
Retailer 19£4,519 GBP
Retailer 7£4,850 GBP
Retailer 5£5,117 GBP
Retailer 14£6,297 GBP
Adiamor£6,452 GBP

27 data points across 21 retailers

21 retailers£1,552 GBP to £6,452 GBP

Retailer 1
-
£1,453 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
£1,552 GBP
$2,079 USD
View
A
Retailer 3
-
£1,688 GBP
$2,262 USD
View
A
Retailer 4
-
£1,737 GBP
$2,328 USD
View
Final sale: no returns
Retailer 5
-
£1,800 GBP
$2,412 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
£1,800 GBP
$2,412 USD
View
A
Retailer 7
-
£1,926 GBP
$2,580 USD
View
A
Retailer 8
-
£2,192 GBP
$2,937 USD
View
A
Retailer 9
-
£2,475 GBP
$3,316 USD
View
A
Retailer 10
-
£2,477 GBP
View
A
Retailer 11
-
£2,787 GBP
ZAR 60,326 ZAR
View
A
Retailer 12
-
£2,816 GBP
$3,773 USD
View
A
Retailer 13
-
£2,888 GBP
$3,869 USD
View
A
Retailer 14
-
£3,023 GBP
€3,857 EUR
View
B+
Retailer 15
-
£3,336 GBP
A$6,876 AUD
View
B+
Retailer 16
-
£3,412 GBP
View
Retailer 17
-
£4,519 GBP
$6,055 USD
View
Price last confirmed 11 days ago
B
Retailer 18
-
£4,850 GBP
$6,499 USD
View
B+
Retailer 19
-
£5,117 GBP
$6,856 USD
View
B
Retailer 20
-
£6,297 GBP
$8,437 USD
View
Most Expensive
B
Adiamor
D-80565019 · Oct 31
£6,452 GBP
$8,645 USD
View
20 more retailers have this diamond
Prices start from £1,552 GBPSave up to £4,900 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
11.21ct Radiant
£1,552 GBP