Oval|Lab Grown|IGI

15.03ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG780608328

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780608328

Diamond specifications and retailer prices

From £3,477 GBP

As of October 27, 2026

Save £19,936 GBP (85%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £23,412 GBP at Brilliant Earth · As of October 26, 2026

View at Brilliant Earth

About this 15.03ct lab-grown oval diamond

This 15.03ct lab-grown oval sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG780608328 or 780608328. Listed at 22 retailers as of October 26, 2026, with prices from £3,477 to £23,412, a £19,936 spread on the same certified stone. Brilliant Earth lists it at £23,412. 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

15.03

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33°

Pavilion angle42.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG780608328

Dimensions19.48 × 13.90 × 8.85 mm

L/W Ratio1.40

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG780608328

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: £23,293 GBP|Low: £3,470 GBP|High: £23,644 GBP|Avg: £8,154 GBP|-1.5%

Brilliant Earth

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November 1, 2026

Retailer 21£3,477 GBP

Retailer 3£3,720 GBP

Retailer 11£3,915 GBP

Retailer 7£4,166 GBP

Retailer 12£4,334 GBP

Retailer 20£4,336 GBP

Retailer 6£4,356 GBP

Retailer 18£5,037 GBP

Retailer 13£5,101 GBP

Retailer 14£5,144 GBP

Retailer 22£5,485 GBP

Retailer 19£6,153 GBP

Retailer 16£6,664 GBP

Retailer 5£6,670 GBP

Retailer 9£6,682 GBP

Retailer 10£8,245 GBP

Retailer 15£11,121 GBP

Retailer 17£11,993 GBP

Retailer 8£11,997 GBP

Retailer 4£15,490 GBP

Retailer 2£21,381 GBP

Brilliant Earth£23,293 GBP

27 data points across 22 retailers

22 retailers£3,477 GBP to £23,412 GBP

Cheapest Retailer

£3,477 GBP

Retailer 2

£3,720 GBP

$4,984 USD

View

Retailer 3

£3,915 GBP

$5,246 USD

View

Price last confirmed 7 days ago

Retailer 4

£4,334 GBP

$5,807 USD

View

Retailer 5

£4,336 GBP

$5,810 USD

View

Retailer 6

£4,356 GBP

$5,836 USD

View

B+

Retailer 7

£5,037 GBP

$6,749 USD

View

B+

Retailer 8

£5,101 GBP

HK$53,400 HKD

View

Retailer 9

£5,144 GBP

$6,893 USD

View

Price last confirmed 7 days ago

B+

Retailer 10

£5,485 GBP

View

B+

Retailer 11

£6,153 GBP

$8,245 USD

View

B+

Retailer 12

£6,664 GBP

€8,504 EUR

View

B+

Retailer 13

£6,670 GBP

$8,937 USD

View

Retailer 14

£6,682 GBP

ZAR 144,631 ZAR

View

Price last confirmed 7 days ago

Retailer 15

£8,245 GBP

A$16,996 AUD

View

Price last confirmed 9 days ago

Retailer 16

£11,121 GBP

A$22,924 AUD

View

Price last confirmed 23 days ago

Retailer 17

£11,993 GBP

$16,069 USD

View

Retailer 18

£11,997 GBP

$16,075 USD

View

Retailer 19

£15,490 GBP

$20,754 USD

View

Retailer 20

£21,381 GBP

$28,648 USD

View

Retailer 21

£23,293 GBP

$31,210 USD

View

Most Expensive

Brilliant Earth

18005448A · Oct 26

£23,412 GBP

$31,370 USD

View

21 more retailers have this diamond

Prices start from £3,477 GBPSave up to £19,936 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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15.03ct Oval

£3,477 GBP