Radiant|Lab Grown|IGI

3.11ct E VVS1 Radiant Lab Grown Diamond

EX • E/VVS1 • IGI LG815648781

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

Certificate IGI LG815648781

Diamond specifications and retailer prices

From £466 GBP

$620 USD

As of October 30, 2026

Save £2,245 GBP (83%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £2,711 GBP at Rare Carat · As of October 28, 2026

View at Rare Carat

About this 3.11ct lab-grown radiant diamond

This 3.11ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG815648781 or 815648781. Listed at 16 retailers as of October 28, 2026, with prices from £466 to £2,711, a £2,245 spread on the same certified stone. Rare Carat lists it at £2,711. 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

3.11

Carat

Colour

VVS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.6°

Pavilion angle31.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG815648781

Dimensions11.31 × 6.99 × 4.40 mm

L/W Ratio1.62

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG815648781

Side View

Caratlytics Score

How it works →

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: Oct 30

Current: £2,711 GBP|Low: £466 GBP|High: £2,711 GBP|Avg: £1,253 GBP

Rare Carat

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

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Retailer 15

October 30, 2026

Retailer 2£466 GBP

Retailer 15£620 GBP

Retailer 4£697 GBP

Retailer 7£761 GBP

Retailer 5£786 GBP

Retailer 10£808 GBP

Retailer 8£1,089 GBP

Retailer 13£1,125 GBP

Retailer 6£1,342 GBP

Retailer 11£1,385 GBP

Retailer 9£1,629 GBP

Retailer 14£1,667 GBP

Retailer 12£1,673 GBP

Retailer 3£2,260 GBP

Rare Carat£2,711 GBP

21 data points across 15 retailers

16 retailers£466 GBP to £2,711 GBP

Cheapest Retailer

£466 GBP

$620 USD

Final sale: no returns

Retailer 2

£620 GBP

$825 USD

View

B+

Retailer 3

£697 GBP

$928 USD

View

Retailer 4

£761 GBP

€965 EUR

View

Retailer 5

£786 GBP

$1,047 USD

View

Retailer 6

£808 GBP

View

Retailer 7

£1,089 GBP

A$2,231 AUD

View

Retailer 8

£1,125 GBP

ZAR 24,196 ZAR

View

Retailer 9

£1,342 GBP

$1,787 USD

View

Retailer 10

£1,385 GBP

$1,845 USD

View

B+

Retailer 11

£1,629 GBP

SGD 2,931 SGD

View

B+

Retailer 12

£1,667 GBP

$2,220 USD

View

B+

Retailer 13

£1,673 GBP

$2,227 USD

View

Retailer 14

£2,185 GBP

A$4,477 AUD

View

Price last confirmed 21 days ago

B+

Retailer 15

£2,260 GBP

View

Most Expensive

Rare Carat

CN212-34A · Oct 28

£2,711 GBP

$3,610 USD

View

15 more retailers have this diamond

Prices start from £466 GBPSave up to £2,245 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.

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3.11ct Radiant

£466 GBP