Princess|Lab Grown|IGI

3.15ct H SI1 Princess Lab Grown Diamond

ID • H/SI1 • IGI LG528229922

Shape and cutting style on the report: Princess cut

Certificate IGI LG528229922

Diamond specifications and retailer prices

From £297 GBP

As of November 4, 2026

Save £986 GBP (77%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £1,283 GBP at MOH London · As of November 5, 2026

View at MOH London

About this 3.15ct lab-grown princess diamond

This 3.15ct lab-grown princess sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG528229922 or 528229922. Listed at 22 retailers as of November 4, 2026, with prices from £297 to £1,283, a £986 spread on the same certified stone. MOH London lists it at £1,283. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.15

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle49.8°

Pavilion angle36.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG528229922

Dimensions7.82 × 7.73 × 5.58 mm

L/W Ratio1.01

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG528229922

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4

Current: £1,283 GBP|Low: £297 GBP|High: £1,302 GBP|Avg: £744 GBP|-1.4%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

November 5, 2026

Retailer 10£297 GBP

Retailer 6£329 GBP

Retailer 8£361 GBP

Retailer 4£395 GBP

Retailer 2£442 GBP

Retailer 5£472 GBP

Retailer 11£831 GBP

Retailer 7£966 GBP

Retailer 9£1,049 GBP

Retailer 3£1,089 GBP

Retailer 12£1,260 GBP

MOH London£1,283 GBP

14 data points across 12 retailers

22 retailers£297 GBP to £1,283 GBP

Retailer 1

£255 GBP

Price last confirmed 35 days ago

Retailer 2

£266 GBP

View

Price last confirmed 10 days ago

Retailer 3

£297 GBP

View

Final sale: no returns

Retailer 4

£308 GBP

View

Price last confirmed 10 days ago

Retailer 5

£308 GBP

View

Price last confirmed 28 days ago

Retailer 6

£329 GBP

View

Retailer 7

£329 GBP

View

Price last confirmed 21 days ago

Retailer 8

£329 GBP

View

Price last confirmed 34 days ago

Retailer 9

£329 GBP

View

Price last confirmed 16 days ago

Retailer 10

£329 GBP

View

Price last confirmed 27 days ago

Retailer 11

£361 GBP

View

Retailer 12

£442 GBP

View

B+

Retailer 13

£472 GBP

View

B+

Retailer 14

£831 GBP

View

B+

Retailer 15

£966 GBP

View

B+

Retailer 16

£1,049 GBP

View

Retailer 17

£1,059 GBP

View

Price last confirmed 37 days ago

Retailer 18

£1,059 GBP

View

Price last confirmed 27 days ago

B+

Retailer 19

£1,059 GBP

View

B+

Retailer 20

£1,089 GBP

View

B+

Retailer 21

£1,260 GBP

View

Most Expensive

B+

MOH London

LG528229922 · Nov 5

£1,283 GBP

View

21 more retailers have this diamond

Prices start from £297 GBPSave up to £986 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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3.15ct Princess

£297 GBP