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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 $671 AUD
$470 USD
As of November 1, 2026
Save $2,385 AUD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,055 AUD at MOH London · As of November 3, 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 $671 to $3,055, a $2,385 spread on the same certified stone. MOH London lists it at $3,055. 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
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
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: $3,055 AUD|Low: $671 AUD|High: $3,948 AUD|Avg: $2,076 AUD|-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$671 AUD
Retailer 15$751 AUD
Retailer 16$1,059 AUD
Retailer 9$1,180 AUD
Retailer 2$1,220 AUD
Retailer 14$1,300 AUD
Retailer 11$1,306 AUD
Retailer 6$1,721 AUD
Retailer 10$1,757 AUD
Retailer 8$1,996 AUD
Retailer 12$2,236 AUD
Retailer 3$2,310 AUD
Retailer 4$2,849 AUD
Retailer 17$3,054 AUD
MOH London$3,055 AUD
Retailer 7$3,840 AUD
Retailer 5$3,948 AUD

22 data points across 17 retailers

11 retailers$671 AUD to $3,055 AUD

A
Cheapest Retailer
-
$671 AUD
$470 USD
A
Retailer 2
-
$751 AUD
$526 USD
View
Final sale: no returns
A
Retailer 3
-
$751 AUD
$526 USD
View
A
Retailer 4
-
$1,059 AUD
HK$5,800 HKD
View
A
Retailer 5
-
$1,220 AUD
€814 EUR
View
B+
Retailer 6
-
$1,300 AUD
$911 USD
View
A
Retailer 7
-
$1,306 AUD
$915 USD
View
B+
Retailer 8
-
$1,757 AUD
View
B+
Retailer 9
-
$2,236 AUD
$1,567 USD
View
B
Retailer 10
-
$2,673 AUD
$1,873 USD
View
Most Expensive
B
MOH London
LG620415346 · Nov 3
$3,055 AUD
£1,686 GBP
View
10 more retailers have this diamond
Prices start from $671 AUDSave up to $2,385 AUD

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
$671 AUD