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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 $470 USD
As of November 1, 2026
Save $1,671 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,141 USD 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 $470 to $2,141, a $1,671 spread on the same certified stone. MOH London lists it at $2,141. 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

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A
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 1
Current: $2,141 USD|Low: $470 USD|High: $2,767 USD|Avg: $1,455 USD|-1.2%
MOH London
Retailer 2
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Retailer 5
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Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 2, 2026
Retailer 13$470 USD
Retailer 15$526 USD
Retailer 16$742 USD
Retailer 9$827 USD
Retailer 2$855 USD
Retailer 14$911 USD
Retailer 11$915 USD
Retailer 6$1,206 USD
Retailer 10$1,231 USD
Retailer 8$1,399 USD
Retailer 12$1,567 USD
Retailer 3$1,619 USD
Retailer 4$1,996 USD
Retailer 17$2,140 USD
MOH London$2,141 USD
Retailer 7$2,691 USD
Retailer 5$2,767 USD

22 data points across 17 retailers

11 retailers$470 USD to $2,141 USD

A
Cheapest Retailer
-
$470 USD
A
Retailer 2
-
$526 USD
View
Final sale: no returns
A
Retailer 3
-
$526 USD
View
A
Retailer 4
-
$742 USD
HK$5,800 HKD
View
A
Retailer 5
-
$855 USD
€814 EUR
View
B+
Retailer 6
-
$911 USD
View
A
Retailer 7
-
$915 USD
View
B+
Retailer 8
-
$1,231 USD
A$1,894 AUD
View
B+
Retailer 9
-
$1,567 USD
View
B
Retailer 10
-
$1,873 USD
View
Most Expensive
B
MOH London
LG620415346 · Nov 1
$2,141 USD
£1,686 GBP
View
10 more retailers have this diamond
Prices start from $470 USDSave up to $1,671 USD

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
$470 USD