Marquise|Lab Grown|IGI

3.15ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG846632617

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846632617

Diamond specifications and retailer prices

From £1,227 GBP

$1,644 USD

As of October 27, 2026

Save £4,848 GBP (80%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: £6,075 GBP at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 3.15ct lab-grown marquise diamond

This 3.15ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG846632617 or 846632617. Listed at 21 retailers as of October 27, 2026, with prices from £1,227 to £6,075, a £4,848 spread on the same certified stone. Brilliant Earth lists it at £6,075. 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

3.15

Carat

Colour

VVS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.3°

Pavilion angle39.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG846632617

Dimensions15.10 × 7.71 × 4.71 mm

L/W Ratio1.96

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 LG846632617

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: £6,075 GBP|Low: £1,227 GBP|High: £6,075 GBP|Avg: £2,701 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

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

Retailer 21

October 29, 2026

Retailer 8£1,227 GBP

Retailer 4£1,335 GBP

Retailer 9£1,374 GBP

Retailer 18£1,424 GBP

Retailer 17£1,549 GBP

Retailer 7£1,631 GBP

Retailer 15£1,661 GBP

Retailer 3£1,681 GBP

Retailer 2£2,011 GBP

Retailer 16£2,036 GBP

Retailer 20£2,244 GBP

Retailer 12£2,455 GBP

Retailer 19£2,668 GBP

Retailer 6£2,946 GBP

Retailer 21£3,293 GBP

Retailer 5£3,517 GBP

Retailer 10£3,662 GBP

Retailer 13£4,088 GBP

Retailer 11£4,331 GBP

Retailer 14£4,998 GBP

Brilliant Earth£6,075 GBP

8 data points across 21 retailers

21 retailers£1,227 GBP to £6,075 GBP

Cheapest Retailer

£1,227 GBP

$1,644 USD

Retailer 2

£1,335 GBP

$1,789 USD

View

B+

Retailer 3

£1,374 GBP

$1,841 USD

View

Final sale: no returns

B+

Retailer 4

£1,424 GBP

$1,908 USD

View

B+

Retailer 5

£1,549 GBP

$2,075 USD

View

B+

Retailer 6

£1,631 GBP

$2,185 USD

View

B+

Retailer 7

£1,661 GBP

View

B+

Retailer 8

£1,681 GBP

$2,252 USD

View

B+

Retailer 9

£2,011 GBP

View

B+

Retailer 10

£2,036 GBP

$2,728 USD

View

Retailer 11

£2,244 GBP

€2,863 EUR

View

Retailer 12

£2,455 GBP

$3,289 USD

View

Retailer 13

£2,668 GBP

$3,575 USD

View

Retailer 14

£2,946 GBP

View

Retailer 15

£3,293 GBP

ZAR 71,278 ZAR

View

Retailer 16

£3,517 GBP

$4,712 USD

View

Price last confirmed 7 days ago

Retailer 17

£3,662 GBP

$4,907 USD

View

Retailer 18

£4,088 GBP

View

Retailer 19

£4,331 GBP

$5,803 USD

View

Retailer 20

£4,998 GBP

$6,697 USD

View

Most Expensive

Brilliant Earth

22239761A · Oct 28

£6,075 GBP

$8,140 USD

View

20 more retailers have this diamond

Prices start from £1,227 GBPSave up to £4,848 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.

Similar diamonds

3.15ct Marquise

£1,227 GBP