Cushion|Lab Grown|IGI

3.57ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG668449966

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG668449966

Diamond specifications and retailer prices

From £612 GBP

$820 USD

As of October 29, 2026

Save £2,224 GBP (78%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: £2,836 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 3.57ct lab-grown cushion diamond

This 3.57ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG668449966 or 668449966. Listed at 12 retailers as of October 29, 2026, with prices from £612 to £2,836, a £2,224 spread on the same certified stone. Brilliant Earth lists it at £2,836. 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

3.57

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.7°

Pavilion angle39.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG668449966

Dimensions9.02 × 8.85 × 5.85 mm

L/W Ratio1.02

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG668449966

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: Oct 29

Current: £2,836 GBP|Low: £567 GBP|High: £3,590 GBP|Avg: £1,376 GBP|-13.4%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

October 30, 2026

Retailer 10£612 GBP

Retailer 9£698 GBP

Retailer 6£732 GBP

Retailer 12£808 GBP

Retailer 4£817 GBP

Retailer 2£829 GBP

Retailer 13£1,172 GBP

Retailer 5£1,263 GBP

Retailer 11£1,708 GBP

Retailer 3£1,719 GBP

Retailer 8£2,232 GBP

Retailer 7£2,316 GBP

Brilliant Earth£2,836 GBP

37 data points across 13 retailers

12 retailers£612 GBP to £2,836 GBP

Cheapest Retailer

£612 GBP

$820 USD

Retailer 2

£698 GBP

View

Price last confirmed 13 days ago

Retailer 3

£732 GBP

€934 EUR

View

Retailer 4

£808 GBP

$1,082 USD

View

Retailer 5

£817 GBP

$1,095 USD

View

Retailer 6

£829 GBP

View

Retailer 7

£1,172 GBP

$1,571 USD

View

B+

Retailer 8

£1,708 GBP

$2,289 USD

View

Retailer 9

£1,719 GBP

$2,303 USD

View

Price last confirmed 12 days ago

Retailer 10

£2,232 GBP

$2,990 USD

View

Price last confirmed 12 days ago

Retailer 11

£2,316 GBP

View

Most Expensive

Brilliant Earth

12459925A · Oct 29

£2,836 GBP

$3,800 USD

View

11 more retailers have this diamond

Prices start from £612 GBPSave up to £2,224 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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