Marquise|Lab Grown|IGI

5.05ct E VVS2 Marquise Lab Grown Diamond

ID • E/VVS2 • IGI LG831659591

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831659591

Diamond specifications and retailer prices

From £595 GBP

$798 USD

As of October 30, 2026

Save £5,375 GBP (90%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: £5,970 GBP at Helzberg Diamonds · As of November 1, 2026

View at Helzberg Diamonds

About this 5.05ct lab-grown marquise diamond

This 5.05ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831659591 or 831659591. Listed at 25 retailers as of October 30, 2026, with prices from £595 to £5,970, a £5,375 spread on the same certified stone. Helzberg Diamonds lists it at £5,970. 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

5.05

Carat

Colour

VVS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle29.8°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG831659591

Dimensions18.52 × 8.98 × 5.29 mm

L/W Ratio2.06

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG831659591

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: £679 GBP|Low: £595 GBP|High: £4,780 GBP|Avg: £1,637 GBP|-14.2%

Retailer 1

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November 3, 2026

Retailer 6£595 GBP

Retailer 19£647 GBP

Retailer 1£679 GBP

Retailer 10£690 GBP

Retailer 15£730 GBP

Retailer 17£735 GBP

Retailer 23£820 GBP

Retailer 4£970 GBP

Retailer 18£1,059 GBP

Retailer 5£1,113 GBP

Retailer 13£1,215 GBP

Retailer 2£1,399 GBP

Retailer 11£1,483 GBP

Retailer 12£1,533 GBP

Retailer 3£1,818 GBP

Retailer 21£1,940 GBP

Retailer 7£2,205 GBP

Retailer 22£2,312 GBP

Retailer 9£2,387 GBP

Retailer 20£2,587 GBP

Retailer 8£2,593 GBP

Retailer 14£3,628 GBP

Retailer 16£4,780 GBP

26 data points across 23 retailers

25 retailers£595 GBP to £5,970 GBP

Cheapest Retailer

£595 GBP

$798 USD

Retailer 2

£647 GBP

$868 USD

View

Retailer 3

£679 GBP

$910 USD

View

Final sale: no returns

Retailer 4

£690 GBP

$926 USD

View

Retailer 5

£730 GBP

$979 USD

View

Price last confirmed 17 days ago

Retailer 6

£735 GBP

View

Retailer 7

£820 GBP

$1,100 USD

View

Retailer 8

£970 GBP

$1,301 USD

View

Retailer 9

£1,059 GBP

View

B+

Retailer 10

£1,113 GBP

$1,493 USD

View

Retailer 11

£1,215 GBP

€1,552 EUR

View

Price last confirmed 7 days ago

Retailer 12

£1,399 GBP

A$2,886 AUD

View

Retailer 13

£1,483 GBP

ZAR 32,134 ZAR

View

Retailer 14

£1,533 GBP

$2,056 USD

View

Retailer 15

£1,818 GBP

$2,438 USD

View

Retailer 16

£1,940 GBP

$2,602 USD

View

B+

Retailer 17

£2,205 GBP

$2,957 USD

View

B+

Retailer 18

£2,312 GBP

$3,100 USD

View

B+

Retailer 19

£2,387 GBP

$3,201 USD

View

B+

Retailer 20

£2,587 GBP

View

B+

Retailer 21

£2,593 GBP

$3,478 USD

View

Retailer 22

£3,364 GBP

A$6,941 AUD

View

Price last confirmed 25 days ago

Retailer 23

£3,628 GBP

$4,865 USD

View

Retailer 24

£4,780 GBP

$6,410 USD

View

Most Expensive

Helzberg Diamonds

ZXZOJHMLPLPH · Nov 1

£5,970 GBP

$8,006 USD

View

24 more retailers have this diamond

Prices start from £595 GBPSave up to £5,375 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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