Cushion|Lab Grown|IGI

1.36ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836614496

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836614496

Diamond specifications and retailer prices

From £379 GBP

$509 USD

As of November 3, 2026

Save £1,540 GBP (80%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £1,919 GBP at Helzberg Diamonds · As of November 3, 2026

View at Helzberg Diamonds

About this 1.36ct lab-grown cushion diamond

This 1.36ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836614496 or 836614496. Listed at 17 retailers as of November 3, 2026, with prices from £379 to £1,919, a £1,540 spread on the same certified stone. Helzberg Diamonds lists it at £1,919. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.36

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.3°

Pavilion angle35.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836614496

Dimensions7.94 × 5.60 × 3.77 mm

L/W Ratio1.42

Girdle conditionFaceted

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 LG836614496

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3

Current: £1,919 GBP|Low: £379 GBP|High: £2,422 GBP|Avg: £1,029 GBP|-8.5%

Helzberg Diamonds

Retailer 2

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Retailer 17

November 3, 2026

Retailer 6£379 GBP

Retailer 4£405 GBP

Retailer 13£417 GBP

Retailer 16£514 GBP

Retailer 7£578 GBP

Retailer 8£637 GBP

Retailer 10£669 GBP

Retailer 12£675 GBP

Retailer 14£699 GBP

Retailer 5£753 GBP

Retailer 11£990 GBP

Retailer 2£1,166 GBP

Retailer 9£1,404 GBP

Retailer 3£1,491 GBP

Retailer 15£1,502 GBP

Retailer 17£1,893 GBP

Helzberg Diamonds£1,919 GBP

26 data points across 17 retailers

17 retailers£379 GBP to £1,919 GBP

Cheapest Retailer

£379 GBP

$509 USD

Final sale: no returns

Retailer 2

£405 GBP

$544 USD

View

Price last confirmed 9 days ago

Retailer 3

£417 GBP

View

Retailer 4

£514 GBP

$690 USD

View

Retailer 5

£578 GBP

$776 USD

View

Retailer 6

£637 GBP

$855 USD

View

Retailer 7

£669 GBP

View

Retailer 8

£675 GBP

€863 EUR

View

Retailer 9

£699 GBP

ZAR 15,152 ZAR

View

Retailer 10

£753 GBP

$1,010 USD

View

B+

Retailer 11

£990 GBP

$1,329 USD

View

B+

Retailer 12

£1,166 GBP

$1,565 USD

View

B+

Retailer 13

£1,404 GBP

SGD 2,546 SGD

View

Retailer 14

£1,491 GBP

View

Price last confirmed 7 days ago

B+

Retailer 15

£1,502 GBP

$2,015 USD

View

Retailer 16

£1,893 GBP

$2,540 USD

View

Most Expensive

Helzberg Diamonds

ZXZOJMMHKKPM · Nov 3

£1,919 GBP

$2,575 USD

View

16 more retailers have this diamond

Prices start from £379 GBPSave up to £1,540 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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1.36ct Cushion

£379 GBP