Cushion|Lab Grown|IGI

4.59ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG835610820

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG835610820

Diamond specifications and retailer prices

From £640 GBP

HK$6,700 HKD

As of November 1, 2026

Save £1,972 GBP (75%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £2,612 GBP at With Clarity · As of November 2, 2026

View at With Clarity

About this 4.59ct lab-grown cushion diamond

This 4.59ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG835610820 or 835610820. Listed at 14 retailers as of November 1, 2026, with prices from £640 to £2,612, a £1,972 spread on the same certified stone. With Clarity lists it at £2,612. 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

4.59

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.9°

Pavilion angle30.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG835610820

Dimensions11.70 × 8.52 × 5.31 mm

L/W Ratio1.37

Girdle conditionFaceted

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG835610820

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: £856 GBP|Low: £538 GBP|High: £4,672 GBP|Avg: £1,588 GBP|-2.1%

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

With Clarity

October 31, 2026

Retailer 3£538 GBP

Retailer 10£640 GBP

Retailer 5£666 GBP

Retailer 11£690 GBP

Retailer 1£856 GBP

Retailer 13£912 GBP

Retailer 15£1,080 GBP

Retailer 4£1,177 GBP

Retailer 6£1,216 GBP

Retailer 8£1,288 GBP

Retailer 7£1,774 GBP

Retailer 14£1,859 GBP

Retailer 2£1,926 GBP

Retailer 12£2,354 GBP

Retailer 9£2,403 GBP

With Clarity£2,612 GBP

36 data points across 16 retailers

14 retailers£640 GBP to £2,612 GBP

Cheapest Retailer

£640 GBP

HK$6,700 HKD

Retailer 2

£666 GBP

View

Price last confirmed 12 days ago

Retailer 3

£690 GBP

$925 USD

View

Retailer 4

£856 GBP

€1,092 EUR

View

B+

Retailer 5

£912 GBP

$1,222 USD

View

Retailer 6

£1,080 GBP

$1,447 USD

View

Retailer 7

£1,177 GBP

ZAR 25,470 ZAR

View

Price last confirmed 8 days ago

Retailer 8

£1,216 GBP

A$2,506 AUD

View

Price last confirmed 12 days ago

Retailer 9

£1,288 GBP

$1,726 USD

View

B+

Retailer 10

£1,859 GBP

$2,491 USD

View

B+

Retailer 11

£1,926 GBP

$2,580 USD

View

B+

Retailer 12

£2,354 GBP

View

B+

Retailer 13

£2,403 GBP

$3,220 USD

View

Most Expensive

B+

With Clarity

835610820 · Nov 2

£2,612 GBP

$3,500 USD

View

13 more retailers have this diamond

Prices start from £640 GBPSave up to £1,972 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.

Similar diamonds

4.59ct Cushion

£640 GBP