Radiant|Lab Grown|IGI

1.77ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG596309191

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG596309191

Diamond specifications and retailer prices

From £348 GBP

$466 USD

As of October 30, 2026

Save £958 GBP (73%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £1,306 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.77ct lab-grown radiant diamond

This 1.77ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG596309191 or 596309191. Listed at 16 retailers as of October 30, 2026, with prices from £348 to £1,306, a £958 spread on the same certified stone. Brilliant Earth lists it at £1,306. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle45.1°

Pavilion angle35.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG596309191

Dimensions8.76 × 5.89 × 4.02 mm

L/W Ratio1.49

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG596309191

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: Oct 30

Current: £1,306 GBP|Low: £172 GBP|High: £1,545 GBP|Avg: £563 GBP|-15.5%

Brilliant Earth

Retailer 2

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October 31, 2026

Retailer 3£184 GBP

Retailer 7£192 GBP

Retailer 5£348 GBP

Retailer 2£350 GBP

Retailer 11£350 GBP

Retailer 9£379 GBP

Retailer 14£457 GBP

Retailer 16£468 GBP

Retailer 12£476 GBP

Retailer 13£658 GBP

Retailer 8£694 GBP

Retailer 4£695 GBP

Retailer 10£822 GBP

Retailer 15£831 GBP

Retailer 6£939 GBP

Brilliant Earth£1,306 GBP

40 data points across 16 retailers

16 retailers£348 GBP to £1,306 GBP

Retailer 1

£179 GBP

$240 USD

Price last confirmed 34 days ago

Retailer 2

£189 GBP

$253 USD

View

Price last confirmed 34 days ago

B+

Retailer 3

£348 GBP

$466 USD

View

Retailer 4

£350 GBP

€447 EUR

View

Retailer 5

£350 GBP

ZAR 7,585 ZAR

View

Retailer 6

£379 GBP

View

Retailer 7

£457 GBP

$612 USD

View

Retailer 8

£468 GBP

$627 USD

View

Retailer 9

£476 GBP

A$982 AUD

View

B+

Retailer 10

£658 GBP

View

B+

Retailer 11

£658 GBP

$882 USD

View

B+

Retailer 12

£695 GBP

$931 USD

View

B+

Retailer 13

£822 GBP

View

B+

Retailer 14

£831 GBP

$1,113 USD

View

Retailer 15

£939 GBP

$1,259 USD

View

Price last confirmed 20 days ago

Most Expensive

Brilliant Earth

7939372A · Oct 31

£1,306 GBP

$1,750 USD

View

15 more retailers have this diamond

Prices start from £348 GBPSave up to £958 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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1.77ct Radiant

£348 GBP