Oval|Lab Grown|IGI

4.21ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG712506113

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG712506113

Diamond specifications and retailer prices

From £1,949 GBP

$2,612 USD

As of October 29, 2026

Save £11,462 GBP (85%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: £13,412 GBP at Do Amore Diamonds · As of October 31, 2026

View at Do Amore 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 LG712506113 or 712506113. Listed at 26 retailers as of October 29, 2026, with prices from £1,949 to £13,412, a £11,462 spread on the same certified stone. Do Amore Diamonds lists it at £13,412. 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

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG712506113

Dimensions12.99 × 9.18 × 5.74 mm

L/W Ratio1.42

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG712506113

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 29

Current: £13,412 GBP|Low: £1,949 GBP|High: £15,419 GBP|Avg: £4,889 GBP

Do Amore Diamonds

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October 31, 2026

Retailer 4£1,949 GBP

Retailer 14£2,121 GBP

Retailer 10£2,183 GBP

Retailer 7£2,261 GBP

Retailer 9£2,314 GBP

Retailer 5£2,381 GBP

Retailer 22£2,952 GBP

Retailer 21£3,197 GBP

Retailer 20£3,318 GBP

Retailer 18£3,363 GBP

Retailer 2£3,373 GBP

Retailer 3£3,432 GBP

Retailer 8£4,311 GBP

Retailer 16£5,314 GBP

Retailer 19£5,357 GBP

Retailer 6£6,073 GBP

Retailer 11£6,248 GBP

Retailer 17£6,361 GBP

Retailer 12£8,529 GBP

Retailer 15£8,697 GBP

Retailer 13£10,083 GBP

Do Amore Diamonds£13,412 GBP

41 data points across 22 retailers

26 retailers£1,949 GBP to £13,412 GBP

Cheapest Retailer

£1,949 GBP

$2,612 USD

Retailer 2

£2,121 GBP

$2,842 USD

View

Retailer 3

£2,183 GBP

$2,925 USD

View

Final sale: no returns

Retailer 4

£2,261 GBP

$3,030 USD

View

Retailer 5

£2,314 GBP

$3,100 USD

View

Retailer 6

£2,368 GBP

$3,173 USD

View

Price last confirmed 19 days ago

Retailer 7

£2,381 GBP

$3,190 USD

View

Retailer 8

£2,952 GBP

HK$30,900 HKD

View

Retailer 9

£3,197 GBP

$4,283 USD

View

Retailer 10

£3,318 GBP

$4,446 USD

View

Retailer 11

£3,363 GBP

$4,506 USD

View

Retailer 12

£3,373 GBP

View

Retailer 13

£3,432 GBP

$4,598 USD

View

Retailer 14

£4,311 GBP

View

Retailer 15

£5,070 GBP

$6,793 USD

View

Price last confirmed 83 days ago

B+

Retailer 16

£5,314 GBP

ZAR 115,023 ZAR

View

Retailer 17

£5,357 GBP

A$11,042 AUD

View

Price last confirmed 9 days ago

B+

Retailer 18

£6,038 GBP

$8,090 USD

View

B+

Retailer 19

£6,073 GBP

$8,137 USD

View

B+

Retailer 20

£6,248 GBP

$8,372 USD

View

B+

Retailer 21

£6,361 GBP

View

Retailer 22

£7,099 GBP

View

Price last confirmed 22 days ago

Retailer 23

£8,529 GBP

SGD 15,444 SGD

View

Retailer 24

£8,697 GBP

$11,653 USD

View

Retailer 25

£10,083 GBP

$13,510 USD

View

Most Expensive

Do Amore Diamonds

27-8CBA032A6 · Oct 31

£13,412 GBP

$17,970 USD

View

25 more retailers have this diamond

Prices start from £1,949 GBPSave up to £11,462 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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