Oval|Lab Grown|IGI

4.28ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG688516648

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG688516648

Diamond specifications and retailer prices

From £1,777 GBP

As of October 29, 2026

Save £9,622 GBP (84%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: £11,399 GBP at Do Amore Diamonds · As of October 29, 2026

View at Do Amore Diamonds

About this 4.28ct lab-grown oval diamond

This 4.28ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG688516648 or 688516648. Listed at 28 retailers as of October 29, 2026, with prices from £1,777 to £11,399, a £9,622 spread on the same certified stone. Do Amore Diamonds lists it at £11,399. 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

4.28

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.5°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG688516648

Dimensions13.16 × 9.30 × 5.73 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 LG688516648

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: £11,399 GBP|Low: £1,766 GBP|High: £11,399 GBP|Avg: £4,092 GBP

Do Amore Diamonds

Retailer 2

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October 29, 2026

Retailer 20£1,777 GBP

Retailer 14£1,829 GBP

Retailer 3£1,855 GBP

Retailer 4£1,922 GBP

Retailer 17£1,989 GBP

Retailer 22£2,041 GBP

Retailer 21£2,046 GBP

Retailer 25£2,509 GBP

Retailer 13£2,912 GBP

Retailer 8£2,915 GBP

Retailer 23£3,012 GBP

Retailer 9£3,307 GBP

Retailer 24£3,512 GBP

Retailer 15£4,028 GBP

Retailer 2£4,515 GBP

Retailer 10£4,551 GBP

Retailer 12£4,643 GBP

Retailer 11£5,065 GBP

Retailer 6£5,130 GBP

Retailer 5£5,372 GBP

Retailer 19£5,709 GBP

Retailer 7£7,259 GBP

Retailer 18£7,403 GBP

Retailer 16£7,817 GBP

Do Amore Diamonds£11,399 GBP

22 data points across 25 retailers

28 retailers£1,777 GBP to £11,399 GBP

Cheapest Retailer

£1,777 GBP

Retailer 2

£1,829 GBP

$2,435 USD

View

Retailer 3

£1,855 GBP

$2,470 USD

View

Final sale: no returns

Retailer 4

£1,922 GBP

$2,559 USD

View

Retailer 5

£1,989 GBP

$2,649 USD

View

Price last confirmed 9 days ago

Retailer 6

£2,041 GBP

$2,718 USD

View

Retailer 7

£2,046 GBP

$2,725 USD

View

Retailer 8

£2,509 GBP

HK$26,100 HKD

View

Retailer 9

£2,664 GBP

$3,547 USD

View

Price last confirmed 17 days ago

Retailer 10

£2,912 GBP

View

Retailer 11

£2,915 GBP

$3,882 USD

View

Retailer 12

£3,012 GBP

$4,011 USD

View

Retailer 13

£3,307 GBP

$4,404 USD

View

Retailer 14

£3,512 GBP

$4,677 USD

View

Retailer 15

£4,028 GBP

View

Retailer 16

£4,515 GBP

ZAR 97,128 ZAR

View

B+

Retailer 17

£4,551 GBP

A$9,324 AUD

View

Price last confirmed 7 days ago

B+

Retailer 18

£5,065 GBP

$6,745 USD

View

Price last confirmed 8 days ago

B+

Retailer 19

£5,130 GBP

$6,832 USD

View

B+

Retailer 20

£5,372 GBP

$7,153 USD

View

B+

Retailer 21

£5,495 GBP

$7,317 USD

View

B+

Retailer 22

£5,709 GBP

View

B+

Retailer 23

£7,076 GBP

View

Price last confirmed 20 days ago

Retailer 24

£7,259 GBP

SGD 13,063 SGD

View

Retailer 25

£7,403 GBP

$9,859 USD

View

B+

Retailer 26

£7,817 GBP

$10,410 USD

View

Retailer 27

£7,817 GBP

$10,410 USD

View

Most Expensive

Do Amore Diamonds

27-DF53EF8B5 · Oct 29

£11,399 GBP

$15,180 USD

View

27 more retailers have this diamond

Prices start from £1,777 GBPSave up to £9,622 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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4.28ct Oval

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