Radiant|Lab Grown|IGI

3.10ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG768630427

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

Certificate IGI LG768630427

Diamond specifications and retailer prices

From £1,778 GBP
$2,382 USD
As of October 30, 2026
Save £4,687 GBP (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,465 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.1ct lab-grown radiant diamond

This 3.1ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768630427 or 768630427. Listed at 14 retailers as of October 30, 2026, with prices from £1,778 to £6,465, a £4,687 spread on the same certified stone. With Clarity lists it at £6,465. 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

3.10
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630427
Dimensions10.55 × 7.31 × 4.77 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.55 mm7.31 mm3.10 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630427
Side View
Table 63.0%Crown 40.5°Girdle: MediumPavilion 33.6°Culet: NoneDepth 65.3%

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: Oct 30
Current: £2,300 GBP|Low: £1,778 GBP|High: £8,657 GBP|Avg: £4,368 GBP|-27.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
October 31, 2026
Retailer 12£1,778 GBP
Retailer 2£2,044 GBP
Retailer 1£2,300 GBP
Retailer 13£2,521 GBP
Retailer 11£2,524 GBP
Retailer 5£2,779 GBP
Retailer 7£3,882 GBP
Retailer 10£4,377 GBP
Retailer 3£4,506 GBP
Retailer 9£4,750 GBP
Retailer 8£4,801 GBP
Retailer 4£5,854 GBP
Retailer 6£6,441 GBP
With Clarity£6,465 GBP

40 data points across 14 retailers

14 retailers£1,778 GBP to £6,465 GBP

A
Cheapest Retailer
-
£1,778 GBP
$2,382 USD
A
Retailer 2
-
£2,044 GBP
HK$21,400 HKD
View
A
Retailer 3
-
£2,300 GBP
View
A
Retailer 4
-
£2,521 GBP
$3,378 USD
View
A
Retailer 5
-
£2,524 GBP
$3,382 USD
View
Retailer 6
-
£2,779 GBP
€3,546 EUR
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£3,882 GBP
ZAR 84,039 ZAR
View
B+
Retailer 8
-
£4,377 GBP
$5,865 USD
View
B+
Retailer 9
-
£4,506 GBP
$6,037 USD
View
B+
Retailer 10
-
£4,750 GBP
$6,365 USD
View
B
Retailer 11
-
£4,801 GBP
View
B
Retailer 12
-
£5,854 GBP
$7,844 USD
View
B
Retailer 13
-
£6,441 GBP
$8,630 USD
View
Most Expensive
B
With Clarity
768630427 · Oct 31
£6,465 GBP
$8,662 USD
View
13 more retailers have this diamond
Prices start from £1,778 GBPSave up to £4,687 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
3.10ct Radiant
£1,778 GBP