Marquise|Lab Grown|IGI

5.09ct G VVS1 Marquise Lab Grown Diamond

EX • G/VVS1 • IGI LG850678948

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850678948

Diamond specifications and retailer prices

From £938 GBP

$1,257 USD

As of November 2, 2026

Save £2,880 GBP (75%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £7,769 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise sits in the over five carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG850678948 or 850678948. Listed at 17 retailers as of October 31, 2026, with a 307% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.09

Carat

Colour

VVS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.8°

Pavilion angle39.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG850678948

Dimensions17.46 × 9.02 × 5.69 mm

L/W Ratio1.94

Girdle conditionFaceted

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG850678948

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: £7,769 GBP|Low: £938 GBP|High: £7,769 GBP|Avg: £2,429 GBP

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 16

Retailer 17

November 2, 2026

Retailer 10£938 GBP

Retailer 12£1,021 GBP

Retailer 7£1,050 GBP

Retailer 17£1,088 GBP

Retailer 2£1,159 GBP

Retailer 16£1,217 GBP

Retailer 15£1,379 GBP

Retailer 11£1,533 GBP

Retailer 13£1,556 GBP

Retailer 8£1,842 GBP

Retailer 3£2,040 GBP

Retailer 5£2,206 GBP

Retailer 6£2,599 GBP

Retailer 4£3,123 GBP

Retailer 14£3,250 GBP

Retailer 9£3,818 GBP

Brilliant Earth£7,769 GBP

4 data points across 17 retailers

17 retailers£938 GBP to £3,818 GBP

Cheapest Retailer

£938 GBP

$1,257 USD

Retailer 2

£1,021 GBP

$1,368 USD

View

Retailer 3

£1,050 GBP

$1,407 USD

View

Final sale: no returns

Retailer 4

£1,088 GBP

$1,458 USD

View

Retailer 5

£1,159 GBP

View

Retailer 6

£1,217 GBP

$1,630 USD

View

B+

Retailer 7

£1,379 GBP

$1,848 USD

View

B+

Retailer 8

£1,533 GBP

View

B+

Retailer 9

£1,556 GBP

$2,085 USD

View

B+

Retailer 10

£1,842 GBP

$2,468 USD

View

B+

Retailer 11

£2,040 GBP

$2,733 USD

View

B+

Retailer 12

£2,206 GBP

A$4,547 AUD

View

Retailer 13

£2,599 GBP

$3,483 USD

View

Retailer 14

£3,123 GBP

$4,184 USD

View

Retailer 15

£3,250 GBP

$4,355 USD

View

Retailer 16

£3,818 GBP

$5,116 USD

View

Most Expensive

Brilliant Earth

22376922A · Oct 31

£7,769 GBP

$10,410 USD

View

Price under review

16 more retailers have this diamond

Prices start from £938 GBPSave up to £2,880 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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