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Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG782688903

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG782688903

Diamond specifications and retailer prices

From $658 CAD
$471 USD
As of October 30, 2026
Save $1,954 CAD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,790 CAD at Rare Carat · As of August 9, 2026
View at Rare Carat

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG782688903 or 782688903. Listed at 13 retailers as of October 30, 2026, with a 297% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782688903
Dimensions7.70 × 5.48 × 3.59 mm
L/W Ratio1.41
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
7.70 mm5.48 mm1.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782688903
Side View
Table 62.0%Crown 40.9°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
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: $2,570 CAD|Low: $658 CAD|High: $3,869 CAD|Avg: $1,462 CAD|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 3$658 CAD
Retailer 8$730 CAD
Retailer 5$754 CAD
Retailer 2$807 CAD
Retailer 11$831 CAD
Retailer 12$933 CAD
Retailer 10$1,045 CAD
Retailer 13$1,605 CAD
Retailer 4$1,657 CAD
Retailer 9$1,712 CAD
Retailer 7$1,738 CAD
Rare Carat$2,570 CAD
Retailer 6$2,612 CAD

32 data points across 13 retailers

13 retailers$658 CAD to $2,612 CAD

A
Cheapest Retailer
-
$658 CAD
$471 USD
A
Retailer 2
-
$730 CAD
ZAR 8,444 ZAR
View
A
Retailer 3
-
$807 CAD
£455 GBP
View
A
Retailer 4
-
$831 CAD
$595 USD
View
A
Retailer 5
-
$933 CAD
$668 USD
View
A
Retailer 6
-
$1,045 CAD
$748 USD
View
B+
Retailer 7
-
$1,605 CAD
$1,149 USD
View
B+
Retailer 8
-
$1,657 CAD
SGD 1,603 SGD
View
B+
Retailer 9
-
$1,712 CAD
£965 GBP
View
B+
Retailer 10
-
$1,738 CAD
A$1,914 AUD
View
Retailer 11
-
$2,570 CAD
$1,840 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
$2,612 CAD
$1,870 USD
View
Most Expensive
Rare Carat
LC9036889OA782 · Aug 9
$2,790 CAD
$1,997 USD
View
Price last confirmed 82 days ago
12 more retailers have this diamond
Prices start from $658 CADSave up to $1,954 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 Radiant
$658 CAD