Round|Lab Grown|GIA

12.05ct E VS2 Round Lab Grown Diamond

EX • E/VS2 • GIA 5231021488

Certificate GIA 5231021488

Diamond specifications and retailer prices

From £6,139 GBP

$8,225 USD

As of October 29, 2026

Save £14,714 GBP (71%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £20,852 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 12.05ct lab-grown round diamond

This 12.05ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5231021488. Listed at 14 retailers as of October 29, 2026, with prices from £6,139 to £20,852, a £14,714 spread on the same certified stone. Brilliant Earth lists it at £20,852. 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

12.05

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34°

Pavilion angle41°

OriginLab Grown

Grading LabGIA

CertificateGIA 5231021488

Dimensions14.80 × 14.78 × 9.00 mm

L/W Ratio1.00

Star length45%

Lower girdle75%

View GIA Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 5231021488

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29

Current: £20,852 GBP|Low: £5,142 GBP|High: £38,302 GBP|Avg: £14,287 GBP|-3.5%

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

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Retailer 17

October 31, 2026

Retailer 12£5,142 GBP

Retailer 14£6,139 GBP

Retailer 3£6,384 GBP

Retailer 17£6,414 GBP

Retailer 15£7,816 GBP

Retailer 10£7,818 GBP

Retailer 13£7,920 GBP

Retailer 4£8,839 GBP

Retailer 2£12,491 GBP

Retailer 7£12,640 GBP

Retailer 16£12,716 GBP

Retailer 9£15,093 GBP

Retailer 11£19,185 GBP

Retailer 5£20,537 GBP

Brilliant Earth£20,852 GBP

Retailer 8£30,526 GBP

Retailer 6£38,302 GBP

27 data points across 17 retailers

14 retailers£6,139 GBP to £20,852 GBP

Retailer 1

£5,142 GBP

$6,890 USD

Price last confirmed 14 days ago

B+

Retailer 2

£6,139 GBP

$8,225 USD

View

B+

Retailer 3

£6,384 GBP

$8,554 USD

View

B+

Retailer 4

£6,414 GBP

$8,594 USD

View

B+

Retailer 5

£7,816 GBP

$10,473 USD

View

B+

Retailer 6

£7,818 GBP

$10,475 USD

View

B+

Retailer 7

£7,920 GBP

$10,612 USD

View

Retailer 8

£8,839 GBP

$11,843 USD

View

Retailer 9

£12,491 GBP

€15,939 EUR

View

Retailer 10

£12,716 GBP

A$26,213 AUD

View

Price last confirmed 31 days ago

Retailer 11

£19,185 GBP

$25,706 USD

View

Retailer 12

£20,537 GBP

$27,517 USD

View

Most Expensive

Brilliant Earth

16301247A · Oct 31

£20,852 GBP

$27,940 USD

View

12 more retailers have this diamond

Prices start from £6,139 GBPSave up to £14,714 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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12.05ct Round

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