Radiant|Lab Grown|IGI

16.28ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG603344368

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

Certificate IGI LG603344368

Diamond specifications and retailer prices

From £2,221 GBP

$2,976 USD

As of October 27, 2026

Save £15,952 GBP (88%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £18,173 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 16.28ct lab-grown radiant diamond

This 16.28ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG603344368 or 603344368. Listed at 16 retailers as of October 27, 2026, with prices from £2,221 to £18,173, a £15,952 spread on the same certified stone. Brilliant Earth lists it at £18,173. 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

16.28

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.2°

Pavilion angle35°

OriginLab Grown

Grading LabIGI

CertificateIGI LG603344368

Dimensions18.30 × 12.20 × 8.37 mm

L/W Ratio1.50

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 LG603344368

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 27

Current: £18,173 GBP|Low: £2,080 GBP|High: £18,733 GBP|Avg: £5,149 GBP|-3.0%

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

Retailer 14

Retailer 15

October 28, 2026

Retailer 12£2,080 GBP

Retailer 13£2,221 GBP

Retailer 9£2,417 GBP

Retailer 3£2,577 GBP

Retailer 4£2,577 GBP

Retailer 6£3,012 GBP

Retailer 14£3,220 GBP

Retailer 2£3,461 GBP

Retailer 15£3,519 GBP

Retailer 10£3,703 GBP

Retailer 5£4,005 GBP

Retailer 8£4,476 GBP

Retailer 11£4,836 GBP

Retailer 7£11,065 GBP

Brilliant Earth£18,173 GBP

34 data points across 15 retailers

16 retailers£2,221 GBP to £18,173 GBP

Retailer 1

£2,080 GBP

Price last confirmed 15 days ago

Retailer 2

£2,221 GBP

$2,976 USD

View

Retailer 3

£2,417 GBP

$3,238 USD

View

Retailer 4

£2,577 GBP

$3,453 USD

View

Retailer 5

£2,577 GBP

$3,453 USD

View

Our latest check could not confirm this price

Retailer 6

£3,012 GBP

$4,036 USD

View

Retailer 7

£3,220 GBP

$4,314 USD

View

Price last confirmed 7 days ago

Retailer 8

£3,461 GBP

View

Retailer 9

£3,519 GBP

$4,715 USD

View

Retailer 10

£3,571 GBP

View

Price last confirmed 20 days ago

Retailer 11

£3,703 GBP

$4,961 USD

View

Retailer 12

£4,005 GBP

$5,366 USD

View

Retailer 13

£4,476 GBP

€5,712 EUR

View

Price last confirmed 9 days ago

Retailer 14

£8,971 GBP

$12,020 USD

View

Price last confirmed 13 days ago

Retailer 15

£11,065 GBP

$14,826 USD

View

Most Expensive

Brilliant Earth

8399061A · Oct 29

£18,173 GBP

$24,350 USD

View

15 more retailers have this diamond

Prices start from £2,221 GBPSave up to £15,952 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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16.28ct Radiant

£2,221 GBP