Round|Lab Grown|IGI

4.27ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG700514427

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700514427

Diamond specifications and retailer prices

From £1,729 GBP

$2,317 USD

As of October 29, 2026

Save £8,898 GBP (84%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: £10,628 GBP at Do Amore Diamonds · As of October 30, 2026

View at Do Amore Diamonds

About this 4.27ct lab-grown round diamond

This 4.27ct lab-grown round 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 LG700514427 or 700514427. Listed at 24 retailers as of October 29, 2026, with prices from £1,729 to £10,628, a £8,898 spread on the same certified stone. Do Amore Diamonds lists it at £10,628. 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

4.27

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.7°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG700514427

Dimensions10.39 × 10.33 × 6.44 mm

L/W Ratio1.01

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 LG700514427

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: £10,628 GBP|Low: £1,729 GBP|High: £17,890 GBP|Avg: £4,935 GBP

Do Amore Diamonds

Retailer 2

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October 30, 2026

Retailer 16£1,729 GBP

Retailer 9£1,921 GBP

Retailer 7£2,455 GBP

Retailer 13£2,712 GBP

Retailer 3£2,728 GBP

Retailer 11£2,806 GBP

Retailer 21£2,874 GBP

Retailer 4£2,969 GBP

Retailer 18£3,147 GBP

Retailer 15£4,210 GBP

Retailer 19£4,244 GBP

Retailer 20£4,534 GBP

Retailer 6£4,827 GBP

Retailer 12£5,034 GBP

Retailer 8£5,160 GBP

Retailer 17£5,395 GBP

Retailer 10£6,909 GBP

Retailer 14£7,110 GBP

Retailer 5£8,309 GBP

Retailer 2£10,016 GBP

Do Amore Diamonds£10,628 GBP

39 data points across 21 retailers

24 retailers£1,729 GBP to £10,628 GBP

Cheapest Retailer

£1,729 GBP

$2,317 USD

Final sale: no returns

Retailer 2

£1,792 GBP

$2,401 USD

View

Retailer 3

£1,801 GBP

$2,413 USD

View

Price last confirmed 37 days ago

Retailer 4

£1,921 GBP

$2,574 USD

View

Retailer 5

£2,455 GBP

HK$25,700 HKD

View

Retailer 6

£2,712 GBP

View

Retailer 7

£2,719 GBP

$3,643 USD

View

Price last confirmed 30 days ago

Retailer 8

£2,728 GBP

$3,655 USD

View

Retailer 9

£2,806 GBP

$3,760 USD

View

Retailer 10

£2,874 GBP

$3,851 USD

View

Retailer 11

£2,969 GBP

$3,978 USD

View

Retailer 12

£3,147 GBP

€4,016 EUR

View

Retailer 13

£4,210 GBP

ZAR 91,132 ZAR

View

Retailer 14

£4,244 GBP

A$8,749 AUD

View

Price last confirmed 8 days ago

Retailer 15

£4,534 GBP

$6,075 USD

View

Price last confirmed 9 days ago

B+

Retailer 16

£4,827 GBP

$6,468 USD

View

B+

Retailer 17

£5,034 GBP

$6,745 USD

View

B+

Retailer 18

£5,160 GBP

$6,914 USD

View

B+

Retailer 19

£5,395 GBP

View

B+

Retailer 20

£6,909 GBP

$9,257 USD

View

B+

Retailer 21

£7,110 GBP

SGD 12,874 SGD

View

Retailer 22

£8,309 GBP

A$17,127 AUD

View

Price last confirmed 25 days ago

Retailer 23

£10,016 GBP

$13,420 USD

View

Most Expensive

Do Amore Diamonds

27-FF6DBA364 · Oct 29

£10,628 GBP

$14,240 USD

View

23 more retailers have this diamond

Prices start from £1,729 GBPSave up to £8,898 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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