Cushion|Lab Grown|IGI

1.88ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836607995

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836607995

Diamond specifications and retailer prices

From £549 GBP

$735 USD

As of November 1, 2026

Save £2,788 GBP (84%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £3,336 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.88ct lab-grown cushion diamond

This 1.88ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836607995 or 836607995. Listed at 19 retailers as of October 31, 2026, with prices from £549 to £3,336, a £2,788 spread on the same certified stone. Brilliant Earth lists it at £3,336. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.88

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.3°

Pavilion angle36.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836607995

Dimensions9.11 × 6.22 × 4.29 mm

L/W Ratio1.46

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 LG836607995

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: £3,336 GBP|Low: £549 GBP|High: £4,500 GBP|Avg: £1,609 GBP|-25.9%

Brilliant Earth

Retailer 2

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November 1, 2026

Retailer 4£549 GBP

Retailer 11£603 GBP

Retailer 12£634 GBP

Retailer 17£694 GBP

Retailer 6£755 GBP

Retailer 13£889 GBP

Retailer 18£916 GBP

Retailer 14£955 GBP

Retailer 16£1,031 GBP

Retailer 19£1,208 GBP

Retailer 15£1,302 GBP

Retailer 5£1,740 GBP

Retailer 7£1,840 GBP

Retailer 3£1,936 GBP

Retailer 8£1,984 GBP

Retailer 2£2,364 GBP

Retailer 10£2,691 GBP

Retailer 9£2,728 GBP

Brilliant Earth£3,336 GBP

27 data points across 19 retailers

19 retailers£549 GBP to £3,336 GBP

Cheapest Retailer

£549 GBP

$735 USD

Final sale: no returns

Retailer 2

£603 GBP

$808 USD

View

Price last confirmed 15 days ago

Retailer 3

£634 GBP

View

Retailer 4

£694 GBP

$930 USD

View

Retailer 5

£755 GBP

$1,011 USD

View

Retailer 6

£889 GBP

View

Retailer 7

£916 GBP

$1,228 USD

View

Retailer 8

£955 GBP

€1,219 EUR

View

Retailer 9

£1,031 GBP

ZAR 22,316 ZAR

View

Retailer 10

£1,208 GBP

$1,618 USD

View

Retailer 11

£1,302 GBP

$1,745 USD

View

B+

Retailer 12

£1,740 GBP

View

B+

Retailer 13

£1,840 GBP

$2,466 USD

View

B+

Retailer 14

£1,936 GBP

$2,594 USD

View

B+

Retailer 15

£1,984 GBP

SGD 3,592 SGD

View

B+

Retailer 16

£2,364 GBP

View

Retailer 17

£2,691 GBP

$3,606 USD

View

Retailer 18

£2,728 GBP

$3,655 USD

View

Most Expensive

Brilliant Earth

21695528A · Oct 31

£3,336 GBP

$4,470 USD

View

18 more retailers have this diamond

Prices start from £549 GBPSave up to £2,788 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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