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Radiant|Lab Grown|IGI

3.11ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG826687075

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

Certificate IGI LG826687075

Diamond specifications and retailer prices

From £683 GBP
$915 USD
As of October 29, 2026
Save £3,742 GBP (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,425 GBP at Frank Darling · As of October 29, 2026
View at Frank Darling

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 LG826687075 or 826687075. Listed at 8 retailers as of October 29, 2026, with prices from £683 to £4,425, a £3,742 spread on the same certified stone. Frank Darling lists it at £4,425. 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
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826687075
Dimensions10.96 × 6.86 × 4.53 mm
L/W Ratio1.60
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.96 mm6.86 mm3.11 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826687075
Side View
Table 67.0%Crown 43.5°Girdle: ThickPavilion 31.2°Culet: NoneDepth 66.0%

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 29
Current: £4,425 GBP|Low: £454 GBP|High: £4,425 GBP|Avg: £1,514 GBP
Frank Darling
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October 30, 2026
Retailer 17£454 GBP
Retailer 10£683 GBP
Retailer 2£709 GBP
Retailer 15£764 GBP
Retailer 12£781 GBP
Retailer 5£814 GBP
Retailer 7£1,120 GBP
Retailer 16£1,394 GBP
Retailer 13£1,471 GBP
Retailer 8£1,535 GBP
Retailer 6£1,707 GBP
Retailer 9£1,710 GBP
Retailer 3£2,088 GBP
Retailer 4£2,135 GBP
Retailer 14£2,717 GBP
Retailer 11£4,224 GBP
Frank Darling£4,425 GBP

22 data points across 17 retailers

8 retailers£683 GBP to £4,425 GBP

A
Cheapest Retailer
-
£683 GBP
$915 USD
A
Retailer 2
-
£709 GBP
View
A
Retailer 3
-
£781 GBP
$1,046 USD
View
B+
Retailer 4
-
£1,471 GBP
$1,971 USD
View
Retailer 5
-
£2,135 GBP
A$4,400 AUD
View
Price last confirmed 32 days ago
Retailer 6
-
£2,717 GBP
$3,640 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
£4,224 GBP
$5,660 USD
View
Most Expensive
B
Frank Darling
934537BD · Oct 29
£4,425 GBP
$5,929 USD
View
7 more retailers have this diamond
Prices start from £683 GBPSave up to £3,742 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
3.11ct Radiant
£683 GBP