Radiant|Lab Grown|IGI

3.11ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG700514389

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

Certificate IGI LG700514389

Diamond specifications and retailer prices

From £752 GBP

$1,008 USD

As of October 30, 2026

Save £5,927 GBP (89%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: £6,680 GBP at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 3.11ct lab-grown radiant diamond

This 3.11ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700514389 or 700514389. Listed at 31 retailers as of October 30, 2026, with prices from £752 to £6,680, a £5,927 spread on the same certified stone. Do Amore Diamonds lists it at £6,680. 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

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.3°

Pavilion angle33.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG700514389

Dimensions10.26 × 7.38 × 4.80 mm

L/W Ratio1.39

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG700514389

Side View

Caratlytics Score

How it works →

A+

Exceptional

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: £6,680 GBP|Low: £752 GBP|High: £7,523 GBP|Avg: £2,829 GBP|-11.2%

Do Amore Diamonds

Retailer 2

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October 31, 2026

Retailer 20£752 GBP

Retailer 5£959 GBP

Retailer 18£1,072 GBP

Retailer 8£1,146 GBP

Retailer 22£1,223 GBP

Retailer 2£1,384 GBP

Retailer 12£1,638 GBP

Retailer 13£1,729 GBP

Retailer 9£1,739 GBP

Retailer 17£1,823 GBP

Retailer 6£2,236 GBP

Retailer 10£2,455 GBP

Retailer 4£2,662 GBP

Retailer 19£2,705 GBP

Retailer 21£2,787 GBP

Retailer 15£2,819 GBP

Retailer 3£3,423 GBP

Retailer 7£3,505 GBP

Retailer 23£3,542 GBP

Retailer 11£4,023 GBP

Retailer 16£5,160 GBP

Retailer 14£6,299 GBP

Do Amore Diamonds£6,680 GBP

33 data points across 23 retailers

31 retailers£752 GBP to £6,680 GBP

A+

Cheapest Retailer

£752 GBP

$1,008 USD

Retailer 2

£848 GBP

$1,136 USD

View

Price last confirmed 23 days ago

Retailer 3

£875 GBP

$1,172 USD

View

Price last confirmed 31 days ago

Retailer 4

£952 GBP

$1,275 USD

View

Price last confirmed 34 days ago

Retailer 5

£959 GBP

$1,285 USD

View

Final sale: no returns

Retailer 6

£983 GBP

$1,317 USD

View

Price last confirmed 28 days ago

Retailer 7

£1,001 GBP

$1,341 USD

View

Price last confirmed 34 days ago

Retailer 8

£1,072 GBP

$1,436 USD

View

Retailer 9

£1,146 GBP

$1,535 USD

View

Retailer 10

£1,223 GBP

HK$12,800 HKD

View

Retailer 11

£1,384 GBP

View

Retailer 12

£1,638 GBP

$2,195 USD

View

Retailer 13

£1,729 GBP

$2,317 USD

View

Retailer 14

£1,739 GBP

€2,219 EUR

View

Price last confirmed 8 days ago

Retailer 15

£1,823 GBP

$2,443 USD

View

Retailer 16

£2,034 GBP

$2,726 USD

View

Retailer 17

£2,034 GBP

$2,726 USD

View

Price last confirmed 21 days ago

Retailer 18

£2,099 GBP

$2,812 USD

View

Price last confirmed 31 days ago

Retailer 19

£2,236 GBP

ZAR 48,401 ZAR

View

Retailer 20

£2,455 GBP

A$5,060 AUD

View

Price last confirmed 9 days ago

B+

Retailer 21

£2,662 GBP

View

B+

Retailer 22

£2,705 GBP

$3,624 USD

View

B+

Retailer 23

£2,787 GBP

$3,734 USD

View

B+

Retailer 24

£2,819 GBP

$3,777 USD

View

B+

Retailer 25

£3,423 GBP

$4,586 USD

View

B+

Retailer 26

£3,505 GBP

View

B+

Retailer 27

£3,542 GBP

SGD 6,413 SGD

View

Retailer 28

£4,023 GBP

$5,390 USD

View

Price last confirmed 10 days ago

Retailer 29

£5,160 GBP

A$10,637 AUD

View

Price last confirmed 30 days ago

Retailer 30

£6,299 GBP

$8,440 USD

View

Most Expensive

Do Amore Diamonds

27-3A57FD078 · Oct 31

£6,680 GBP

$8,950 USD

View

30 more retailers have this diamond

Prices start from £752 GBPSave up to £5,927 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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A+

3.11ct Radiant

£752 GBP