Cushion|Lab Grown|IGI

5.56ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG831604190

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831604190

Diamond specifications and retailer prices

From £6,769 GBP

$9,070 USD

As of November 1, 2026

Save £32,868 GBP (83%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £39,637 GBP at With Clarity · As of October 31, 2026

View at With Clarity

About this 5.56ct lab-grown cushion diamond

This 5.56ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831604190 or 831604190. Listed at 18 retailers as of October 31, 2026, with prices from £6,769 to £39,637, a £32,868 spread on the same certified stone. With Clarity lists it at £39,637. 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

5.56

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.2°

Pavilion angle35.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG831604190

Dimensions11.71 × 9.36 × 6.26 mm

L/W Ratio1.25

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 LG831604190

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: Nov 1

Current: £14,033 GBP|Low: £6,769 GBP|High: £42,333 GBP|Avg: £15,301 GBP|-4.9%

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

Retailer 15

Retailer 16

Retailer 17

With Clarity

November 1, 2026

Retailer 14£6,769 GBP

Retailer 2£7,440 GBP

Retailer 15£7,631 GBP

Retailer 10£7,818 GBP

Retailer 12£7,933 GBP

Retailer 7£7,967 GBP

Retailer 5£8,031 GBP

Retailer 13£9,310 GBP

Retailer 3£11,044 GBP

Retailer 8£13,061 GBP

Retailer 6£13,320 GBP

Retailer 1£14,033 GBP

Retailer 17£15,486 GBP

Retailer 9£16,699 GBP

Retailer 11£21,467 GBP

Retailer 16£24,332 GBP

Retailer 4£27,144 GBP

With Clarity£39,637 GBP

6 data points across 18 retailers

18 retailers£6,769 GBP to £39,637 GBP

Cheapest Retailer

£6,769 GBP

$9,070 USD

Retailer 2

£7,440 GBP

$9,969 USD

View

Final sale: no returns

Retailer 3

£7,631 GBP

$10,225 USD

View

Retailer 4

£7,818 GBP

$10,475 USD

View

Retailer 5

£7,933 GBP

View

Retailer 6

£7,967 GBP

HK$83,400 HKD

View

Retailer 7

£8,031 GBP

$10,761 USD

View

Retailer 8

£9,310 GBP

View

Retailer 9

£11,044 GBP

View

B+

Retailer 10

£13,061 GBP

$17,500 USD

View

B+

Retailer 11

£13,320 GBP

$17,848 USD

View

B+

Retailer 12

£14,033 GBP

View

B+

Retailer 13

£15,486 GBP

$20,750 USD

View

B+

Retailer 14

£16,699 GBP

ZAR 361,478 ZAR

View

B+

Retailer 15

£21,467 GBP

$28,764 USD

View

B+

Retailer 16

£24,332 GBP

$32,602 USD

View

Retailer 17

£27,144 GBP

SGD 49,148 SGD

View

Most Expensive

With Clarity

831604190 · Oct 31

£39,637 GBP

$53,109 USD

View

17 more retailers have this diamond

Prices start from £6,769 GBPSave up to £32,868 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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