Round|Lab Grown|IGI

3.55ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG770675858

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770675858

Diamond specifications and retailer prices

From £393 GBP

$527 USD

As of November 1, 2026

Save £1,654 GBP (81%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £5,433 GBP at Brilliant Earth · As of October 9, 2026

View at Brilliant Earth

About this 3.55ct lab-grown round diamond

This 3.55ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG770675858 or 770675858. Listed at 27 retailers as of October 29, 2026, with a 421% 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

3.55

Carat

Colour

VVS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG770675858

Dimensions9.81 × 9.78 × 5.99 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

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 LG770675858

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 1

Current: £5,433 GBP|Low: £378 GBP|High: £5,597 GBP|Avg: £1,334 GBP|-2.9%

Brilliant Earth

Retailer 2

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Retailer 19

November 1, 2026

Retailer 5£393 GBP

Retailer 7£440 GBP

Retailer 8£488 GBP

Retailer 9£488 GBP

Retailer 14£590 GBP

Retailer 2£611 GBP

Retailer 18£653 GBP

Retailer 13£741 GBP

Retailer 12£754 GBP

Retailer 11£768 GBP

Retailer 15£1,030 GBP

Retailer 17£1,059 GBP

Retailer 4£1,259 GBP

Retailer 6£1,283 GBP

Retailer 3£1,808 GBP

Retailer 10£1,971 GBP

Retailer 16£2,047 GBP

Retailer 19£2,302 GBP

Brilliant Earth£5,433 GBP

40 data points across 19 retailers

27 retailers£393 GBP to £2,047 GBP

Cheapest Retailer

£393 GBP

$527 USD

Retailer 2

£393 GBP

$527 USD

View

Price last confirmed 33 days ago

Retailer 3

£440 GBP

$590 USD

View

Price last confirmed 39 days ago

Retailer 4

£440 GBP

$590 USD

View

Retailer 5

£481 GBP

$645 USD

View

Price last confirmed 35 days ago

Retailer 6

£488 GBP

$654 USD

View

Price last confirmed 16 days ago

Retailer 7

£488 GBP

$654 USD

View

Retailer 8

£590 GBP

$790 USD

View

Retailer 9

£611 GBP

View

B+

Retailer 10

£653 GBP

$875 USD

View

Retailer 11

£741 GBP

€946 EUR

View

Retailer 12

£754 GBP

View

Retailer 13

£768 GBP

$1,029 USD

View

B+

Retailer 14

£1,030 GBP

A$2,123 AUD

View

B+

Retailer 15

£1,059 GBP

ZAR 22,930 ZAR

View

B+

Retailer 16

£1,088 GBP

$1,458 USD

View

B+

Retailer 17

£1,259 GBP

$1,687 USD

View

Retailer 18

£1,283 GBP

$1,719 USD

View

Price last confirmed 36 days ago

B+

Retailer 19

£1,283 GBP

$1,719 USD

View

B+

Retailer 20

£1,585 GBP

$2,124 USD

View

B+

Retailer 21

£1,601 GBP

$2,145 USD

View

Retailer 22

£1,705 GBP

$2,285 USD

View

B+

Retailer 23

£1,808 GBP

$2,423 USD

View

Retailer 24

£1,971 GBP

SGD 3,568 SGD

View

Price last confirmed 20 days ago

Retailer 25

£2,047 GBP

View

Retailer 26

£2,302 GBP

$3,085 USD

View

Price last confirmed 11 days ago

Most Expensive

Brilliant Earth

20458377A · Oct 9

£5,433 GBP

$7,280 USD

View

Price under review

26 more retailers have this diamond

Prices start from £393 GBPSave up to £1,654 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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