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Heart|Lab Grown|IGI

1.66ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG665402361

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665402361

Diamond specifications and retailer prices

From $427 AUD
$299 USD
As of November 1, 2026
Save $2,869 AUD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,296 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.66ct lab-grown heart diamond

This 1.66ct lab-grown heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665402361 or 665402361. Listed at 11 retailers as of November 1, 2026, with prices from $427 to $3,296, a $2,869 spread on the same certified stone. Do Amore Diamonds lists it at $3,296. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665402361
Dimensions7.48 × 8.22 × 4.55 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm8.22 mm1.66 ctH / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG665402361
Side View
Table 62.0%Crown 35.9°Girdle: MED-STKPavilion 39°Culet: NoneDepth 55.4%

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: $3,296 AUD|Low: $427 AUD|High: $3,296 AUD|Avg: $1,280 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$427 AUD
Retailer 2$629 AUD
Retailer 10$652 AUD
Retailer 8$719 AUD
Retailer 9$793 AUD
Retailer 4$812 AUD
Retailer 3$1,287 AUD
Retailer 6$1,376 AUD
Retailer 11$1,754 AUD
Retailer 5$1,886 AUD
Do Amore Diamonds$3,296 AUD

23 data points across 11 retailers

11 retailers$427 AUD to $3,296 AUD

A
Cheapest Retailer
-
$427 AUD
$299 USD
A
Retailer 2
-
$629 AUD
£347 GBP
View
A
Retailer 3
-
$652 AUD
$457 USD
View
A
Retailer 4
-
$719 AUD
$504 USD
View
A
Retailer 5
-
$793 AUD
$556 USD
View
A
Retailer 6
-
$812 AUD
ZAR 9,190 ZAR
View
B+
Retailer 7
-
$1,376 AUD
$964 USD
View
B
Retailer 8
-
$1,514 AUD
$1,061 USD
View
B
Retailer 9
-
$1,754 AUD
$1,229 USD
View
B
Retailer 10
-
$1,886 AUD
£1,041 GBP
View
Most Expensive
B
Do Amore Diamonds
27-CF087E7DD · Nov 2
$3,296 AUD
$2,310 USD
View
10 more retailers have this diamond
Prices start from $427 AUDSave up to $2,869 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
1.66ct Heart
$427 AUD