Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

GD • D/IF

Diamond specifications and retailer prices

From $401 CAD
$287 USD
As of October 28, 2026
Save $2,232 CAD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,633 CAD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 standard cut grade and certified by IGI. Listed at 8 retailers as of October 28, 2026, with prices from $401 to $2,633, a $2,232 spread on the same certified stone. Blue Nile lists it at $2,633. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.29
Carat
D
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.90 × 5.28 × 3.58 mm
L/W Ratio1.50
Top View
7.90 mm5.28 mm1.29 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,633 CAD|Low: $261 CAD|High: $2,633 CAD|Avg: $851 CAD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 20, 2026
Retailer 7$261 CAD
Retailer 5$345 CAD
Retailer 2$401 CAD
Retailer 3$429 CAD
Retailer 4$489 CAD
Retailer 8$1,066 CAD
Retailer 6$1,520 CAD
Blue Nile$2,633 CAD

34 data points across 8 retailers

8 retailers$401 CAD to $2,633 CAD

Retailer 1
-
$345 CAD
$247 USD
Price last confirmed 19 days ago
Retailer 2
-
$401 CAD
$287 USD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$401 CAD
$287 USD
View
Retailer 4
-
$429 CAD
$307 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$429 CAD
$307 USD
View
Retailer 6
-
$489 CAD
£276 GBP
View
Price last confirmed 13 days ago
Retailer 7
-
$1,520 CAD
$1,088 USD
View
Price last confirmed 25 days ago
Most Expensive
B
Blue Nile
28929986 · Oct 29
$2,633 CAD
$1,885 USD
View
7 more retailers have this diamond
Prices start from $401 CADSave up to $2,232 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.

B+
1.29ct Radiant
$401 CAD