Cushion|Lab Grown|IGI

1.57ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG815697809

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG815697809

Diamond specifications and retailer prices

From £196 GBP

$262 USD

As of October 30, 2026

Save £1,260 GBP (87%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £1,455 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.57ct lab-grown cushion diamond

This 1.57ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG815697809 or 815697809. Listed at 18 retailers as of October 29, 2026, with prices from £196 to £1,455, a £1,260 spread on the same certified stone. Brilliant Earth lists it at £1,455. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.3°

Pavilion angle37.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG815697809

Dimensions8.51 × 5.68 × 3.86 mm

L/W Ratio1.50

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 LG815697809

Side View

Caratlytics Score

How it works →

A+

Exceptional

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 30

Current: £1,455 GBP|Low: £196 GBP|High: £1,455 GBP|Avg: £625 GBP

Brilliant Earth

Retailer 2

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October 30, 2026

Retailer 15£196 GBP

Retailer 6£217 GBP

Retailer 10£360 GBP

Retailer 17£368 GBP

Retailer 11£373 GBP

Retailer 14£407 GBP

Retailer 2£410 GBP

Retailer 12£506 GBP

Retailer 4£532 GBP

Retailer 16£573 GBP

Retailer 7£720 GBP

Retailer 3£737 GBP

Retailer 5£842 GBP

Retailer 13£871 GBP

Retailer 8£883 GBP

Retailer 9£1,149 GBP

Brilliant Earth£1,455 GBP

34 data points across 17 retailers

18 retailers£196 GBP to £1,455 GBP

A+

Cheapest Retailer

£196 GBP

$262 USD

Final sale: no returns

Retailer 2

£217 GBP

$291 USD

View

Retailer 3

£360 GBP

€459 EUR

View

Retailer 4

£368 GBP

$493 USD

View

Retailer 5

£373 GBP

ZAR 8,071 ZAR

View

Retailer 6

£407 GBP

$545 USD

View

Retailer 7

£410 GBP

View

Retailer 8

£506 GBP

A$1,043 AUD

View

Retailer 9

£532 GBP

$713 USD

View

B+

Retailer 10

£573 GBP

$768 USD

View

B+

Retailer 11

£720 GBP

SGD 1,304 SGD

View

B+

Retailer 12

£737 GBP

$987 USD

View

B+

Retailer 13

£767 GBP

$1,028 USD

View

B+

Retailer 14

£842 GBP

View

B+

Retailer 15

£871 GBP

View

B+

Retailer 16

£883 GBP

$1,183 USD

View

Retailer 17

£1,149 GBP

$1,540 USD

View

Price last confirmed 11 days ago

Most Expensive

Brilliant Earth

21423053A · Oct 29

£1,455 GBP

$1,950 USD

View

17 more retailers have this diamond

Prices start from £196 GBPSave up to £1,260 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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