Cushion|Lab Grown|IGI

10.21ct F VS2 Cushion Lab Grown Diamond

ID • F/VS2 • IGI LG623489859

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG623489859

Diamond specifications and retailer prices

From £1,105 GBP

As of November 2, 2026

Save £5,825 GBP (84%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: £6,930 GBP at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 10.21ct lab-grown cushion diamond

This 10.21ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG623489859 or 623489859. Listed at 12 retailers as of November 2, 2026, with prices from £1,105 to £6,930, a £5,825 spread on the same certified stone. Brilliant Earth lists it at £6,930. 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

10.21

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle31.8°

Pavilion angle39.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG623489859

Dimensions14.82 × 11.39 × 7.76 mm

L/W Ratio1.30

Girdle conditionFaceted

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 LG623489859

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 2

Current: £6,930 GBP|Low: £1,105 GBP|High: £7,392 GBP|Avg: £3,110 GBP|-5.0%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

November 2, 2026

Retailer 2£1,105 GBP

Retailer 9£1,367 GBP

Retailer 3£1,464 GBP

Retailer 8£1,670 GBP

Retailer 6£1,748 GBP

Retailer 7£1,954 GBP

Retailer 12£2,077 GBP

Retailer 10£2,987 GBP

Retailer 11£3,338 GBP

Retailer 5£4,752 GBP

Retailer 4£5,137 GBP

Brilliant Earth£6,930 GBP

31 data points across 12 retailers

12 retailers£1,105 GBP to £6,930 GBP

Cheapest Retailer

£1,105 GBP

Retailer 2

£1,367 GBP

$1,835 USD

View

Retailer 3

£1,464 GBP

$1,965 USD

View

Price last confirmed 22 days ago

Retailer 4

£1,670 GBP

$2,241 USD

View

Retailer 5

£1,748 GBP

View

B+

Retailer 6

£1,954 GBP

$2,622 USD

View

Retailer 7

£2,077 GBP

€2,654 EUR

View

Retailer 8

£2,987 GBP

View

B+

Retailer 9

£3,338 GBP

$4,480 USD

View

B+

Retailer 10

£4,752 GBP

$6,377 USD

View

Retailer 11

£5,137 GBP

$6,894 USD

View

Price last confirmed 23 days ago

Most Expensive

Brilliant Earth

9464403A · Nov 2

£6,930 GBP

$9,300 USD

View

11 more retailers have this diamond

Prices start from £1,105 GBPSave up to £5,825 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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