Round|Lab Grown|IGI

3.66ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG620415346

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620415346

Diamond specifications and retailer prices

From €419 EUR

$470 USD

As of November 1, 2026

Save €1,490 EUR (78%) vs most expensive(unlock to see where)

11 retailers carry this diamond

Most expensive: €1,909 EUR at MOH London · As of November 1, 2026

View at MOH London

About this 3.66ct lab-grown round diamond

This 3.66ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620415346 or 620415346. Listed at 11 retailers as of November 1, 2026, with prices from €419 to €1,909, a €1,490 spread on the same certified stone. MOH London lists it at €1,909. 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

3.66

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.6°

Pavilion angle41.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG620415346

Dimensions9.75 × 9.71 × 6.14 mm

L/W Ratio1.00

Girdle conditionFaceted

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG620415346

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: €1,909 EUR|Low: €419 EUR|High: €2,467 EUR|Avg: €1,297 EUR|-1.2%

MOH London

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November 2, 2026

Retailer 13€419 EUR

Retailer 15€469 EUR

Retailer 16€662 EUR

Retailer 9€737 EUR

Retailer 2€762 EUR

Retailer 14€812 EUR

Retailer 11€816 EUR

Retailer 6€1,075 EUR

Retailer 10€1,098 EUR

Retailer 8€1,247 EUR

Retailer 12€1,397 EUR

Retailer 3€1,444 EUR

Retailer 4€1,780 EUR

Retailer 17€1,908 EUR

MOH London€1,909 EUR

Retailer 7€2,399 EUR

Retailer 5€2,467 EUR

22 data points across 17 retailers

11 retailers€419 EUR to €1,909 EUR

Cheapest Retailer

€419 EUR

$470 USD

Retailer 2

€469 EUR

$526 USD

View

Final sale: no returns

Retailer 3

€469 EUR

$526 USD

View

Retailer 4

€662 EUR

HK$5,800 HKD

View

Retailer 5

€762 EUR

View

B+

Retailer 6

€812 EUR

$911 USD

View

Retailer 7

€816 EUR

$915 USD

View

B+

Retailer 8

€1,098 EUR

A$1,894 AUD

View

B+

Retailer 9

€1,397 EUR

$1,567 USD

View

Retailer 10

€1,670 EUR

$1,873 USD

View

Most Expensive

MOH London

LG620415346 · Nov 1

€1,909 EUR

£1,686 GBP

View

10 more retailers have this diamond

Prices start from €419 EURSave up to €1,490 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.

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3.66ct Round

€419 EUR