Oval|Lab Grown|IGI

6.12ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG583308486

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG583308486

Diamond specifications and retailer prices

From £1,041 GBP

$1,395 USD

As of October 30, 2026

Save £2,265 GBP (69%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £3,306 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 6.12ct lab-grown oval diamond

This 6.12ct lab-grown oval sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG583308486 or 583308486. Listed at 16 retailers as of October 29, 2026, with prices from £1,041 to £3,306, a £2,265 spread on the same certified stone. Brilliant Earth lists it at £3,306. 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

6.12

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.1°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG583308486

Dimensions14.56 × 10.40 × 6.49 mm

L/W Ratio1.40

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG583308486

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: £3,306 GBP|Low: £436 GBP|High: £3,411 GBP|Avg: £1,488 GBP|-3.1%

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

Retailer 16

October 31, 2026

Retailer 6£632 GBP

Retailer 4£648 GBP

Retailer 8£842 GBP

Retailer 15£1,041 GBP

Retailer 9£1,075 GBP

Retailer 3£1,086 GBP

Retailer 2£1,105 GBP

Retailer 10£1,245 GBP

Retailer 11£1,300 GBP

Retailer 13£1,403 GBP

Retailer 14£1,598 GBP

Retailer 7£1,820 GBP

Retailer 16£2,322 GBP

Retailer 5£2,413 GBP

Retailer 12£2,522 GBP

Brilliant Earth£3,306 GBP

29 data points across 16 retailers

16 retailers£1,041 GBP to £3,306 GBP

Retailer 1

£545 GBP

$730 USD

Price last confirmed 38 days ago

Retailer 2

£593 GBP

$794 USD

View

Price last confirmed 36 days ago

Retailer 3

£623 GBP

$835 USD

View

Price last confirmed 34 days ago

Retailer 4

£1,041 GBP

$1,395 USD

View

Retailer 5

£1,075 GBP

$1,440 USD

View

B+

Retailer 6

£1,086 GBP

$1,455 USD

View

Retailer 7

£1,105 GBP

€1,410 EUR

View

Retailer 8

£1,245 GBP

A$2,567 AUD

View

Retailer 9

£1,300 GBP

ZAR 28,146 ZAR

View

B+

Retailer 10

£1,403 GBP

$1,880 USD

View

B+

Retailer 11

£1,598 GBP

$2,141 USD

View

Retailer 12

£1,777 GBP

$2,381 USD

View

Price last confirmed 34 days ago

Retailer 13

£2,322 GBP

$3,111 USD

View

Retailer 14

£2,413 GBP

$3,233 USD

View

Price last confirmed 21 days ago

Retailer 15

£2,522 GBP

View

Most Expensive

Brilliant Earth

7627117A · Oct 29

£3,306 GBP

$4,430 USD

View

15 more retailers have this diamond

Prices start from £1,041 GBPSave up to £2,265 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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6.12ct Oval

£1,041 GBP