CaratHunter
Plans
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 €421 EUR
$470 USD
As of November 1, 2026
Save €1,496 EUR (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,917 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 €421 to €1,917, a €1,496 spread on the same certified stone. MOH London lists it at €1,917. 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
H
Color
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
Top View
9.75 mm9.71 mm3.66 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620415346
Side View
Table 60.0%Crown 35.6°Girdle: ThickPavilion 41.6°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
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: €1,917 EUR|Low: €421 EUR|High: €2,477 EUR|Avg: €1,302 EUR|-1.2%
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
November 2, 2026
Retailer 13€421 EUR
Retailer 15€471 EUR
Retailer 16€665 EUR
Retailer 9€740 EUR
Retailer 2€765 EUR
Retailer 14€815 EUR
Retailer 11€819 EUR
Retailer 6€1,079 EUR
Retailer 10€1,102 EUR
Retailer 8€1,252 EUR
Retailer 12€1,403 EUR
Retailer 3€1,449 EUR
Retailer 4€1,787 EUR
Retailer 17€1,916 EUR
MOH London€1,917 EUR
Retailer 7€2,409 EUR
Retailer 5€2,477 EUR

22 data points across 17 retailers

11 retailers€421 EUR to €1,917 EUR

A
Cheapest Retailer
-
€421 EUR
$470 USD
A
Retailer 2
-
€471 EUR
$526 USD
View
Final sale: no returns
A
Retailer 3
-
€471 EUR
$526 USD
View
A
Retailer 4
-
€665 EUR
HK$5,800 HKD
View
A
Retailer 5
-
€765 EUR
View
B+
Retailer 6
-
€815 EUR
$911 USD
View
A
Retailer 7
-
€819 EUR
$915 USD
View
B+
Retailer 8
-
€1,102 EUR
A$1,894 AUD
View
B+
Retailer 9
-
€1,403 EUR
$1,567 USD
View
B
Retailer 10
-
€1,677 EUR
$1,873 USD
View
Most Expensive
B
MOH London
LG620415346 · Nov 1
€1,917 EUR
£1,686 GBP
View
10 more retailers have this diamond
Prices start from €421 EURSave up to €1,496 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.

A
3.66ct Round
€421 EUR