Cushion|Lab Grown|IGI

3.29ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG739589054

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG739589054

Diamond specifications and retailer prices

From £2,593 GBP

$3,475 USD

As of October 31, 2026

Save £10,596 GBP (80%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £13,190 GBP at With Clarity · As of October 31, 2026

View at With Clarity

About this 3.29ct lab-grown cushion diamond

This 3.29ct lab-grown cushion 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 LG739589054 or 739589054. Listed at 19 retailers as of October 31, 2026, with prices from £2,593 to £13,190, a £10,596 spread on the same certified stone. With Clarity lists it at £13,190. 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

3.29

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36°

Pavilion angle29°

OriginLab Grown

Grading LabIGI

CertificateIGI LG739589054

Dimensions10.35 × 7.34 × 5.06 mm

L/W Ratio1.41

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG739589054

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 31

Current: £4,273 GBP|Low: £2,593 GBP|High: £13,190 GBP|Avg: £4,960 GBP|+2.3%

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

With Clarity

October 31, 2026

Retailer 7£2,593 GBP

Retailer 6£2,666 GBP

Retailer 5£2,686 GBP

Retailer 12£2,802 GBP

Retailer 13£3,448 GBP

Retailer 8£3,534 GBP

Retailer 2£3,844 GBP

Retailer 1£4,273 GBP

Retailer 11£6,083 GBP

Retailer 9£6,236 GBP

Retailer 4£6,441 GBP

Retailer 10£6,845 GBP

Retailer 14£8,341 GBP

Retailer 3£9,456 GBP

With Clarity£13,190 GBP

41 data points across 15 retailers

19 retailers£2,593 GBP to £13,190 GBP

Cheapest Retailer

£2,593 GBP

$3,475 USD

Final sale: no returns

Retailer 2

£2,666 GBP

$3,572 USD

View

Retailer 3

£2,802 GBP

$3,755 USD

View

Retailer 4

£2,973 GBP

$3,984 USD

View

B+

Retailer 5

£3,448 GBP

$4,620 USD

View

Retailer 6

£3,534 GBP

View

B+

Retailer 7

£3,844 GBP

$5,150 USD

View

B+

Retailer 8

£4,273 GBP

€5,453 EUR

View

B+

Retailer 9

£4,641 GBP

View

Retailer 10

£6,083 GBP

A$12,540 AUD

View

Price last confirmed 9 days ago

B+

Retailer 11

£6,236 GBP

ZAR 134,992 ZAR

View

Retailer 12

£6,441 GBP

$8,630 USD

View

Retailer 13

£6,695 GBP

$8,971 USD

View

B+

Retailer 14

£6,845 GBP

View

Retailer 15

£7,813 GBP

$10,469 USD

View

Retailer 16

£8,341 GBP

A$17,193 AUD

View

Price last confirmed 22 days ago

Retailer 17

£9,369 GBP

$12,553 USD

View

Retailer 18

£9,456 GBP

$12,670 USD

View

Most Expensive

With Clarity

739589054 · Oct 31

£13,190 GBP

$17,673 USD

View

18 more retailers have this diamond

Prices start from £2,593 GBPSave up to £10,596 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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3.29ct Cushion

£2,593 GBP