Oval|Lab Grown|IGI

4.21ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG770633964

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770633964

Diamond specifications and retailer prices

From £1,840 GBP

$2,466 USD

As of October 29, 2026

Save £13,103 GBP (88%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: £14,944 GBP at Yadav Diamonds · As of October 30, 2026

View at Yadav Diamonds

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval 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 LG770633964 or 770633964. Listed at 23 retailers as of October 29, 2026, with prices from £1,840 to £14,944, a £13,103 spread on the same certified stone. Yadav Diamonds lists it at £14,944. 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

4.21

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.7°

Pavilion angle40.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG770633964

Dimensions12.98 × 9.09 × 5.69 mm

L/W Ratio1.43

Girdle conditionFaceted

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 LG770633964

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 29

Current: £3,157 GBP|Low: £1,840 GBP|High: £14,944 GBP|Avg: £5,831 GBP|-10.9%

Retailer 1

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Retailer 22

Yadav Diamonds

November 1, 2026

Retailer 3£1,840 GBP

Retailer 22£2,002 GBP

Retailer 10£2,061 GBP

Retailer 14£2,135 GBP

Retailer 21£2,258 GBP

Retailer 7£2,998 GBP

Retailer 1£3,157 GBP

Retailer 4£3,174 GBP

Retailer 2£3,201 GBP

Retailer 6£3,239 GBP

Retailer 5£3,555 GBP

Retailer 13£4,061 GBP

Retailer 16£5,016 GBP

Retailer 20£5,057 GBP

Retailer 8£5,921 GBP

Retailer 19£6,318 GBP

Retailer 12£6,390 GBP

Retailer 15£8,215 GBP

Retailer 11£10,831 GBP

Retailer 9£12,665 GBP

Retailer 17£12,822 GBP

Retailer 18£12,822 GBP

Yadav Diamonds£14,944 GBP

39 data points across 23 retailers

23 retailers£1,840 GBP to £14,944 GBP

A+

Cheapest Retailer

£1,840 GBP

$2,466 USD

Retailer 2

£2,002 GBP

$2,683 USD

View

Retailer 3

£2,061 GBP

$2,761 USD

View

Final sale: no returns

Retailer 4

£2,135 GBP

$2,861 USD

View

Retailer 5

£2,258 GBP

$3,025 USD

View

Retailer 6

£2,341 GBP

$3,137 USD

View

Price last confirmed 19 days ago

Retailer 7

£2,998 GBP

$4,017 USD

View

Retailer 8

£3,157 GBP

View

Retailer 9

£3,174 GBP

$4,253 USD

View

Retailer 10

£3,201 GBP

$4,289 USD

View

Retailer 11

£3,239 GBP

$4,340 USD

View

Retailer 12

£4,061 GBP

View

B+

Retailer 13

£5,016 GBP

ZAR 108,585 ZAR

View

Retailer 14

£5,057 GBP

A$10,424 AUD

View

Price last confirmed 9 days ago

B+

Retailer 15

£5,921 GBP

$7,934 USD

View

B+

Retailer 16

£6,318 GBP

View

B+

Retailer 17

£6,390 GBP

$8,562 USD

View

Retailer 18

£8,215 GBP

$11,008 USD

View

Retailer 19

£10,831 GBP

$14,512 USD

View

Retailer 20

£12,665 GBP

$16,970 USD

View

Retailer 21

£12,822 GBP

$17,180 USD

View

Retailer 22

£12,822 GBP

$17,180 USD

View

Most Expensive

Yadav Diamonds

13275880 · Oct 30

£14,944 GBP

$20,023 USD

View

22 more retailers have this diamond

Prices start from £1,840 GBPSave up to £13,103 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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