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Heart|Lab Grown|IGI

1.00ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG517287920

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG517287920

Diamond specifications and retailer prices

From $209 CAD
$149 USD
As of October 23, 2026
Save $1,004 CAD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,213 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG517287920 or 517287920. Listed at 13 retailers as of October 23, 2026, with prices from $209 to $1,213, a $1,004 spread on the same certified stone. MOH London lists it at $1,213. 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

1.00
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517287920
Dimensions6.20 × 6.81 × 3.95 mm
L/W Ratio1.10
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
6.20 mm6.81 mm1.00 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517287920
Side View
Table 59.5%Crown 34°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 58.0%

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: Oct 23
Current: $1,213 CAD|Low: $209 CAD|High: $1,226 CAD|Avg: $606 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 5$209 CAD
Retailer 6$235 CAD
Retailer 4$351 CAD
Retailer 8$444 CAD
Retailer 2$447 CAD
Retailer 7$601 CAD
Retailer 3$881 CAD
Retailer 9$911 CAD
MOH London$1,213 CAD

38 data points across 9 retailers

13 retailers$209 CAD to $1,213 CAD

A
Cheapest Retailer
-
$209 CAD
$149 USD
A
Retailer 2
-
$235 CAD
$167 USD
View
Final sale: no returns
A
Retailer 3
-
$243 CAD
$173 USD
View
A
Retailer 4
-
$260 CAD
$185 USD
View
A
Retailer 5
-
$260 CAD
$185 USD
View
B+
Retailer 6
-
$351 CAD
$250 USD
View
B+
Retailer 7
-
$444 CAD
$316 USD
View
B+
Retailer 8
-
$447 CAD
£250 GBP
View
B+
Retailer 9
-
$601 CAD
$428 USD
View
B
Retailer 10
-
$833 CAD
$593 USD
View
B
Retailer 11
-
$881 CAD
$627 USD
View
B
Retailer 12
-
$911 CAD
$649 USD
View
Most Expensive
B
MOH London
LG517287920 · Oct 26
$1,213 CAD
£680 GBP
View
12 more retailers have this diamond
Prices start from $209 CADSave up to $1,004 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
1.00ct Heart
$209 CAD