Radiant|Lab Grown|IGI

11.51ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG827612627

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

Certificate IGI LG827612627

Diamond specifications and retailer prices

From £2,691 GBP
$3,605 USD
As of November 1, 2026
Save £6,241 GBP (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,931 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 11.51ct lab-grown radiant diamond

This 11.51ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG827612627 or 827612627. Listed at 10 retailers as of October 31, 2026, with prices from £2,691 to £8,931, a £6,241 spread on the same certified stone. With Clarity lists it at £8,931. 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

11.51
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG827612627
Dimensions16.58 × 11.24 × 7.25 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.58 mm11.24 mm11.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG827612627
Side View
Table 68.0%Crown 40.6°Girdle: MediumPavilion 39.8°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,192 GBP|Low: £2,588 GBP|High: £8,931 GBP|Avg: £5,253 GBP|+1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 1, 2026
Retailer 7£2,691 GBP
Retailer 6£2,818 GBP
Retailer 1£3,192 GBP
Retailer 8£3,706 GBP
Retailer 3£3,857 GBP
Retailer 4£5,504 GBP
Retailer 5£6,939 GBP
Retailer 2£6,996 GBP
Retailer 9£8,304 GBP
With Clarity£8,931 GBP

32 data points across 10 retailers

10 retailers£2,691 GBP to £8,931 GBP

A
Cheapest Retailer
-
£2,691 GBP
$3,605 USD
A
Retailer 2
-
£2,818 GBP
HK$29,500 HKD
View
A
Retailer 3
-
£3,192 GBP
View
A
Retailer 4
-
£3,706 GBP
$4,966 USD
View
B+
Retailer 5
-
£3,857 GBP
€4,922 EUR
View
Retailer 6
-
£5,504 GBP
$7,375 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
£6,939 GBP
$9,297 USD
View
B
Retailer 8
-
£6,996 GBP
A$14,421 AUD
View
B
Retailer 9
-
£8,304 GBP
$11,127 USD
View
Most Expensive
B
With Clarity
827612627 · Oct 31
£8,931 GBP
$11,967 USD
View
9 more retailers have this diamond
Prices start from £2,691 GBPSave up to £6,241 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
11.51ct Radiant
£2,691 GBP