CaratHunter
Plans
Round|Lab Grown|IGI

1.29ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG766644317

Shape and cutting style on the report: Round brilliant

Certificate IGI LG766644317

Diamond specifications and retailer prices

From $515 CAD
As of November 3, 2026
Save $902 CAD (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,417 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG766644317 or 766644317. Listed at 10 retailers as of November 2, 2026, with prices from $515 to $1,417, a $902 spread on the same certified stone. MOH London lists it at $1,417. 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

1.29
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766644317
Dimensions6.94 × 6.89 × 4.35 mm
L/W Ratio1.01
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
6.94 mm6.89 mm1.29 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766644317
Side View
Table 57.0%Crown 36.4°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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 3
Current: $1,417 CAD|Low: $151 CAD|High: $1,458 CAD|Avg: $651 CAD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 3$151 CAD
Retailer 7$303 CAD
Retailer 4$515 CAD
Retailer 9$539 CAD
Retailer 6$540 CAD
Retailer 10$589 CAD
Retailer 8$654 CAD
Retailer 2$677 CAD
Retailer 5$796 CAD
Retailer 11$866 CAD
MOH London$1,417 CAD

34 data points across 11 retailers

10 retailers$515 CAD to $1,417 CAD

Retailer 1
-
$303 CAD
Price last confirmed 12 days ago
A
Retailer 2
-
$515 CAD
View
B+
Retailer 3
-
$539 CAD
View
A
Retailer 4
-
$540 CAD
View
A
Retailer 5
-
$589 CAD
View
B+
Retailer 6
-
$654 CAD
View
B+
Retailer 7
-
$677 CAD
View
B
Retailer 8
-
$796 CAD
View
B
Retailer 9
-
$866 CAD
View
Most Expensive
B
MOH London
LG766644317 · Nov 2
$1,417 CAD
£799 GBP
View
9 more retailers have this diamond
Prices start from $515 CADSave up to $902 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
1.29ct Round
$515 CAD