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Radiant|Lab Grown|IGI

11.23ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG620445939

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

Certificate IGI LG620445939

Diamond specifications and retailer prices

From £1,271 GBP
$1,706 USD
As of November 2, 2026
Save £6,583 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £7,854 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 11.23ct lab-grown radiant diamond

This 11.23ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620445939 or 620445939. Listed at 21 retailers as of October 31, 2026, with prices from £1,271 to £7,854, a £6,583 spread on the same certified stone. Brilliant Earth lists it at £7,854. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.23
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620445939
Dimensions15.76 × 10.97 × 7.45 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
15.76 mm10.97 mm11.23 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620445939
Side View
Table 66.0%Crown 43.6°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.9%

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 2
Current: £7,854 GBP|Low: £1,191 GBP|High: £9,494 GBP|Avg: £2,882 GBP|-17.3%
Brilliant Earth
Retailer 2
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Retailer 21
November 2, 2026
Retailer 21£1,191 GBP
Retailer 3£1,271 GBP
Retailer 18£1,383 GBP
Retailer 8£1,423 GBP
Retailer 5£1,475 GBP
Retailer 6£1,475 GBP
Retailer 17£1,602 GBP
Retailer 11£1,918 GBP
Retailer 13£2,073 GBP
Retailer 16£2,283 GBP
Retailer 9£2,316 GBP
Retailer 2£2,396 GBP
Retailer 19£2,543 GBP
Retailer 15£2,732 GBP
Retailer 4£2,764 GBP
Retailer 14£3,055 GBP
Retailer 10£3,974 GBP
Retailer 20£4,251 GBP
Retailer 7£4,263 GBP
Retailer 12£5,464 GBP
Brilliant Earth£7,854 GBP

42 data points across 21 retailers

21 retailers£1,271 GBP to £7,854 GBP

Retailer 1
-
£1,191 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£1,271 GBP
$1,706 USD
View
A
Retailer 3
-
£1,383 GBP
$1,856 USD
View
A
Retailer 4
-
£1,475 GBP
$1,979 USD
View
Retailer 5
-
£1,475 GBP
$1,979 USD
View
Price last confirmed 22 days ago
A
Retailer 6
-
£1,602 GBP
$2,150 USD
View
A
Retailer 7
-
£1,918 GBP
$2,574 USD
View
A
Retailer 8
-
£2,073 GBP
View
A
Retailer 9
-
£2,283 GBP
ZAR 49,491 ZAR
View
B+
Retailer 10
-
£2,316 GBP
$3,108 USD
View
A
Retailer 11
-
£2,396 GBP
€3,062 EUR
View
A
Retailer 12
-
£2,543 GBP
$3,412 USD
View
A
Retailer 13
-
£2,732 GBP
A$5,641 AUD
View
A
Retailer 14
-
£2,764 GBP
$3,709 USD
View
B+
Retailer 15
-
£3,055 GBP
View
B+
Retailer 16
-
£3,974 GBP
$5,333 USD
View
Retailer 17
-
£4,251 GBP
$5,705 USD
View
Price last confirmed 12 days ago
Retailer 18
-
£4,263 GBP
$5,720 USD
View
Price last confirmed 22 days ago
B
Retailer 19
-
£5,174 GBP
$6,943 USD
View
B
Retailer 20
-
£5,464 GBP
$7,332 USD
View
Most Expensive
B
Brilliant Earth
9243981A · Oct 31
£7,854 GBP
$10,540 USD
View
20 more retailers have this diamond
Prices start from £1,271 GBPSave up to £6,583 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
11.23ct Radiant
£1,271 GBP