Radiant|Lab Grown|IGI

4.88ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG812621042

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

Certificate IGI LG812621042

Diamond specifications and retailer prices

From £4,384 GBP

$5,874 USD

As of November 1, 2026

Save £11,821 GBP (73%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £16,205 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 4.88ct lab-grown radiant diamond

This 4.88ct 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 LG812621042 or 812621042. Listed at 22 retailers as of October 31, 2026, with prices from £4,384 to £16,205, a £11,821 spread on the same certified stone. Taylor and Hart lists it at £16,205. 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

4.88

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.4°

Pavilion angle35.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG812621042

Dimensions12.04 × 8.44 × 5.61 mm

L/W Ratio1.43

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 LG812621042

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: Nov 1

Current: £9,240 GBP|Low: £4,384 GBP|High: £16,488 GBP|Avg: £8,710 GBP|-3.8%

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

Retailer 14

Retailer 15

Retailer 16

Taylor and Hart

November 1, 2026

Retailer 4£4,384 GBP

Retailer 2£4,553 GBP

Retailer 12£5,165 GBP

Retailer 10£5,770 GBP

Retailer 16£6,438 GBP

Retailer 8£6,504 GBP

Retailer 15£6,667 GBP

Retailer 6£7,012 GBP

Retailer 11£7,437 GBP

Retailer 3£8,112 GBP

Retailer 1£9,240 GBP

Retailer 13£9,665 GBP

Retailer 9£9,990 GBP

Retailer 5£12,274 GBP

Retailer 14£12,628 GBP

Retailer 7£12,643 GBP

Taylor and Hart£16,205 GBP

35 data points across 17 retailers

22 retailers£4,384 GBP to £16,205 GBP

Retailer 1

£3,997 GBP

$5,356 USD

Price last confirmed 24 days ago

Retailer 2

£4,384 GBP

$5,874 USD

View

Final sale: no returns

Retailer 3

£4,553 GBP

$6,100 USD

View

Retailer 4

£4,605 GBP

$6,170 USD

View

Price last confirmed 37 days ago

Retailer 5

£4,637 GBP

$6,213 USD

View

Price last confirmed 29 days ago

Retailer 6

£4,637 GBP

$6,213 USD

View

Price last confirmed 21 days ago

Retailer 7

£5,165 GBP

$6,921 USD

View

Retailer 8

£5,505 GBP

$7,376 USD

View

Price last confirmed 32 days ago

Retailer 9

£5,770 GBP

View

B+

Retailer 10

£6,438 GBP

View

B+

Retailer 11

£6,504 GBP

$8,715 USD

View

B+

Retailer 12

£6,667 GBP

$8,933 USD

View

B+

Retailer 13

£7,012 GBP

$9,395 USD

View

B+

Retailer 14

£7,437 GBP

€9,490 EUR

View

B+

Retailer 15

£8,112 GBP

$10,869 USD

View

B+

Retailer 16

£9,240 GBP

View

B+

Retailer 17

£9,665 GBP

ZAR 209,207 ZAR

View

B+

Retailer 18

£9,990 GBP

A$20,594 AUD

View

Retailer 19

£12,274 GBP

$16,445 USD

View

Retailer 20

£12,628 GBP

$16,920 USD

View

Retailer 21

£12,643 GBP

$16,940 USD

View

Most Expensive

Taylor and Hart

3PMCSWU · Oct 31

£16,205 GBP

$21,713 USD

View

21 more retailers have this diamond

Prices start from £4,384 GBPSave up to £11,821 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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