Radiant|Lab Grown|IGI

3.11ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG700512253

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

Certificate IGI LG700512253

Diamond specifications and retailer prices

From £830 GBP

$1,112 USD

As of October 30, 2026

Save £5,238 GBP (86%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: £6,068 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

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 LG700512253 or 700512253. Listed at 31 retailers as of October 30, 2026, with prices from £830 to £6,068, a £5,238 spread on the same certified stone. Brilliant Earth lists it at £6,068. 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

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.3°

Pavilion angle33°

OriginLab Grown

Grading LabIGI

CertificateIGI LG700512253

Dimensions7.35 × 7.35 × 4.76 mm

L/W Ratio1.00

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG700512253

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: £6,068 GBP|Low: £830 GBP|High: £6,262 GBP|Avg: £2,658 GBP|-3.1%

Brilliant Earth

Retailer 2

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October 31, 2026

Retailer 20£830 GBP

Retailer 19£1,055 GBP

Retailer 9£1,146 GBP

Retailer 17£1,156 GBP

Retailer 22£1,175 GBP

Retailer 2£1,384 GBP

Retailer 12£1,638 GBP

Retailer 10£1,739 GBP

Retailer 16£1,953 GBP

Retailer 7£2,236 GBP

Retailer 13£2,249 GBP

Retailer 11£2,455 GBP

Retailer 6£2,662 GBP

Retailer 18£2,788 GBP

Retailer 15£2,819 GBP

Retailer 21£3,064 GBP

Retailer 5£3,368 GBP

Retailer 3£3,390 GBP

Retailer 8£3,505 GBP

Retailer 4£3,665 GBP

Retailer 14£5,187 GBP

Brilliant Earth£6,068 GBP

32 data points across 22 retailers

31 retailers£830 GBP to £6,068 GBP

Cheapest Retailer

£830 GBP

$1,112 USD

Retailer 2

£936 GBP

$1,254 USD

View

Price last confirmed 23 days ago

Retailer 3

£966 GBP

$1,294 USD

View

Price last confirmed 32 days ago

Retailer 4

£1,050 GBP

$1,407 USD

View

Price last confirmed 34 days ago

Retailer 5

£1,055 GBP

$1,413 USD

View

Final sale: no returns

Retailer 6

£1,085 GBP

$1,454 USD

View

Price last confirmed 28 days ago

Retailer 7

£1,105 GBP

$1,480 USD

View

Price last confirmed 34 days ago

Retailer 8

£1,146 GBP

$1,535 USD

View

Retailer 9

£1,156 GBP

$1,549 USD

View

Retailer 10

£1,175 GBP

HK$12,300 HKD

View

Retailer 11

£1,384 GBP

View

Retailer 12

£1,638 GBP

$2,195 USD

View

Retailer 13

£1,739 GBP

€2,219 EUR

View

Price last confirmed 8 days ago

Retailer 14

£1,953 GBP

$2,617 USD

View

Retailer 15

£2,034 GBP

$2,726 USD

View

Retailer 16

£2,034 GBP

$2,726 USD

View

Price last confirmed 21 days ago

Retailer 17

£2,099 GBP

$2,812 USD

View

Price last confirmed 31 days ago

Retailer 18

£2,236 GBP

ZAR 48,401 ZAR

View

Retailer 19

£2,249 GBP

$3,013 USD

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

£2,788 GBP

$3,736 USD

View

B+

Retailer 23

£2,819 GBP

$3,777 USD

View

B+

Retailer 24

£3,064 GBP

$4,105 USD

View

B+

Retailer 25

£3,368 GBP

$4,512 USD

View

B+

Retailer 26

£3,390 GBP

SGD 6,138 SGD

View

B+

Retailer 27

£3,505 GBP

View

B+

Retailer 28

£3,665 GBP

$4,911 USD

View

Retailer 29

£4,340 GBP

$5,815 USD

View

Price last confirmed 33 days ago

Retailer 30

£5,187 GBP

A$10,692 AUD

View

Price last confirmed 26 days ago

Most Expensive

Brilliant Earth

14847302A · Oct 30

£6,068 GBP

$8,130 USD

View

30 more retailers have this diamond

Prices start from £830 GBPSave up to £5,238 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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