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Heart|Lab Grown|IGI

0.66ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG670409091

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG670409091

Diamond specifications and retailer prices

From $212 CAD
$152 USD
As of October 30, 2026
Save $1,244 CAD (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,039 CAD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 0.66ct lab-grown heart diamond

This 0.66ct lab-grown heart sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670409091 or 670409091. Listed at 13 retailers as of October 30, 2026, with a 586% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.66
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.2°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670409091
Dimensions5.32 × 5.77 × 3.49 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.32 mm5.77 mm0.66 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG670409091
Side View
Table 64.0%Crown 37.2°Girdle: MED-THKPavilion 42.3°Culet: NoneDepth 60.5%

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: Oct 30
Current: $2,039 CAD|Low: $204 CAD|High: $2,067 CAD|Avg: $744 CAD|-1.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9$212 CAD
Retailer 7$236 CAD
Retailer 12$246 CAD
Retailer 10$263 CAD
Retailer 4$355 CAD
Retailer 3$405 CAD
Retailer 5$516 CAD
Retailer 6$893 CAD
Retailer 11$933 CAD
Retailer 2$1,357 CAD
Retailer 8$1,456 CAD
Do Amore Diamonds$2,039 CAD

43 data points across 12 retailers

13 retailers$212 CAD to $1,456 CAD

A
Cheapest Retailer
-
$212 CAD
$152 USD
A
Retailer 2
-
$236 CAD
$169 USD
View
Final sale: no returns
A
Retailer 3
-
$246 CAD
$176 USD
View
A
Retailer 4
-
$263 CAD
$188 USD
View
A
Retailer 5
-
$355 CAD
$254 USD
View
B+
Retailer 6
-
$405 CAD
$290 USD
View
B+
Retailer 7
-
$516 CAD
£291 GBP
View
B
Retailer 8
-
$893 CAD
$639 USD
View
B
Retailer 9
-
$933 CAD
$668 USD
View
B
Retailer 10
-
$1,176 CAD
$842 USD
View
B
Retailer 11
-
$1,357 CAD
£765 GBP
View
B
Retailer 12
-
$1,456 CAD
$1,042 USD
View
Most Expensive
Do Amore Diamonds
27-9600C54C1 · Nov 1
$2,039 CAD
$1,460 USD
View
Price under review
12 more retailers have this diamond
Prices start from $212 CADSave up to $1,244 CAD

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
0.66ct Heart
$212 CAD