Marquise|Lab Grown|IGI

2.56ct G VVS1 Marquise Lab Grown Diamond

ID • G/VVS1 • IGI LG851605532

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851605532

Diamond specifications and retailer prices

From £350 GBP

$469 USD

As of November 2, 2026

Save £1,859 GBP (84%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £2,209 GBP at Rare Carat · As of November 1, 2026

View at Rare Carat

About this 2.56ct lab-grown marquise diamond

This 2.56ct lab-grown marquise sits in the two to three carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG851605532 or 851605532. Listed at 17 retailers as of November 1, 2026, with prices from £350 to £2,209, a £1,859 spread on the same certified stone. Rare Carat lists it at £2,209. 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

2.56

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.5°

Pavilion angle40°

OriginLab Grown

Grading LabIGI

CertificateIGI LG851605532

Dimensions14.62 × 7.02 × 4.38 mm

L/W Ratio2.08

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 LG851605532

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: £2,209 GBP|Low: £350 GBP|High: £2,209 GBP|Avg: £1,039 GBP

Rare Carat

Retailer 2

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November 2, 2026

Retailer 10£350 GBP

Retailer 7£391 GBP

Retailer 12£392 GBP

Retailer 17£434 GBP

Retailer 2£458 GBP

Retailer 15£537 GBP

Retailer 13£582 GBP

Retailer 16£696 GBP

Retailer 11£713 GBP

Retailer 8£990 GBP

Retailer 5£1,094 GBP

Retailer 3£1,394 GBP

Retailer 9£1,416 GBP

Retailer 14£1,530 GBP

Retailer 6£1,623 GBP

Retailer 4£2,127 GBP

Rare Carat£2,209 GBP

4 data points across 17 retailers

17 retailers£350 GBP to £2,209 GBP

Cheapest Retailer

£350 GBP

$469 USD

Retailer 2

£391 GBP

$524 USD

View

Final sale: no returns

Retailer 3

£392 GBP

$525 USD

View

Retailer 4

£434 GBP

$581 USD

View

Retailer 5

£458 GBP

View

Retailer 6

£537 GBP

$720 USD

View

Retailer 7

£582 GBP

$780 USD

View

Retailer 8

£696 GBP

$933 USD

View

Retailer 9

£713 GBP

View

B+

Retailer 10

£990 GBP

$1,327 USD

View

B+

Retailer 11

£1,094 GBP

$1,466 USD

View

B+

Retailer 12

£1,394 GBP

$1,868 USD

View

B+

Retailer 13

£1,416 GBP

$1,897 USD

View

B+

Retailer 14

£1,530 GBP

$2,051 USD

View

Retailer 15

£1,623 GBP

$2,174 USD

View

Retailer 16

£2,127 GBP

$2,850 USD

View

Most Expensive

Rare Carat

B47778-IZ_l_851605532 · Nov 1

£2,209 GBP

$2,960 USD

View

16 more retailers have this diamond

Prices start from £350 GBPSave up to £1,859 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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