Round|Lab Grown|IGI

2.78ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG654490555

Shape and cutting style on the report: Round brilliant

Certificate IGI LG654490555

Diamond specifications and retailer prices

From €267 EUR

$298 USD

As of October 29, 2026

Save €1,066 EUR (80%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: €1,332 EUR at MOH London · As of October 29, 2026

View at MOH London

About this 2.78ct lab-grown round diamond

This 2.78ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG654490555 or 654490555. Listed at 14 retailers as of October 29, 2026, with prices from €267 to €1,332, a €1,066 spread on the same certified stone. MOH London lists it at €1,332. 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

2.78

Carat

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.6°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG654490555

Dimensions9.11 × 9.05 × 5.54 mm

L/W Ratio1.01

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 LG654490555

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 29

Current: €1,332 EUR|Low: €267 EUR|High: €3,654 EUR|Avg: €1,039 EUR

MOH London

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

October 31, 2026

Retailer 12€267 EUR

Retailer 6€310 EUR

Retailer 5€331 EUR

Retailer 16€367 EUR

Retailer 13€470 EUR

Retailer 14€538 EUR

Retailer 3€541 EUR

Retailer 11€545 EUR

Retailer 2€585 EUR

Retailer 15€609 EUR

Retailer 17€823 EUR

Retailer 10€1,017 EUR

Retailer 4€1,063 EUR

MOH London€1,332 EUR

Retailer 7€1,714 EUR

Retailer 9€2,399 EUR

Retailer 8€3,654 EUR

5 data points across 17 retailers

14 retailers€267 EUR to €1,332 EUR

Cheapest Retailer

€267 EUR

$298 USD

Retailer 2

€310 EUR

$346 USD

View

Retailer 3

€331 EUR

$370 USD

View

Retailer 4

€367 EUR

HK$3,200 HKD

View

Retailer 5

€470 EUR

$525 USD

View

Retailer 6

€538 EUR

View

B+

Retailer 7

€541 EUR

$604 USD

View

Retailer 8

€545 EUR

£479 GBP

View

Retailer 9

€585 EUR

£515 GBP

View

Retailer 10

€609 EUR

$680 USD

View

B+

Retailer 11

€823 EUR

$919 USD

View

B+

Retailer 12

€1,017 EUR

$1,136 USD

View

B+

Retailer 13

€1,063 EUR

$1,188 USD

View

Most Expensive

MOH London

LG654490555 · Oct 29

€1,332 EUR

£1,172 GBP

View

13 more retailers have this diamond

Prices start from €267 EURSave up to €1,066 EUR

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

2.78ct Round

€267 EUR