Cushion|Lab Grown|IGI

1.87ct G VVS1 Cushion Lab Grown Diamond

ID • G/VVS1 • IGI LG840635037

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635037

Diamond specifications and retailer prices

From £222 GBP

$297 USD

As of November 1, 2026

Save £1,449 GBP (87%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £1,670 GBP at Helzberg Diamonds · As of November 1, 2026

View at Helzberg Diamonds

About this 1.87ct lab-grown cushion diamond

This 1.87ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840635037 or 840635037. Listed at 18 retailers as of November 1, 2026, with prices from £222 to £1,670, a £1,449 spread on the same certified stone. Helzberg Diamonds lists it at £1,670. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle35.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG840635037

Dimensions8.91 × 6.28 × 4.16 mm

L/W Ratio1.42

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 LG840635037

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: £1,670 GBP|Low: £222 GBP|High: £2,000 GBP|Avg: £764 GBP

Helzberg Diamonds

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November 2, 2026

Retailer 5£222 GBP

Retailer 13£259 GBP

Retailer 17£366 GBP

Retailer 10£407 GBP

Retailer 2£423 GBP

Retailer 15£439 GBP

Retailer 8£452 GBP

Retailer 14£466 GBP

Retailer 4£570 GBP

Retailer 18£621 GBP

Retailer 7£699 GBP

Retailer 9£827 GBP

Retailer 6£864 GBP

Retailer 16£882 GBP

Retailer 12£984 GBP

Retailer 11£1,310 GBP

Retailer 3£1,500 GBP

Helzberg Diamonds£1,670 GBP

18 data points across 18 retailers

18 retailers£222 GBP to £1,670 GBP

Cheapest Retailer

£222 GBP

$297 USD

Final sale: no returns

Retailer 2

£259 GBP

View

Retailer 3

£366 GBP

$490 USD

View

B+

Retailer 4

£407 GBP

$546 USD

View

Retailer 5

£423 GBP

ZAR 9,158 ZAR

View

Retailer 6

£439 GBP

€560 EUR

View

Retailer 7

£452 GBP

$605 USD

View

Retailer 8

£466 GBP

View

Retailer 9

£570 GBP

A$1,176 AUD

View

Retailer 10

£621 GBP

$832 USD

View

B+

Retailer 11

£699 GBP

$936 USD

View

B+

Retailer 12

£827 GBP

$1,108 USD

View

B+

Retailer 13

£864 GBP

SGD 1,564 SGD

View

B+

Retailer 14

£882 GBP

$1,182 USD

View

B+

Retailer 15

£984 GBP

View

Retailer 16

£1,310 GBP

$1,755 USD

View

Retailer 17

£1,500 GBP

$2,010 USD

View

Most Expensive

Helzberg Diamonds

ZXZOKGMJLGJN · Nov 1

£1,670 GBP

$2,238 USD

View

17 more retailers have this diamond

Prices start from £222 GBPSave up to £1,449 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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1.87ct Cushion

£222 GBP