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Radiant|Lab Grown|IGI

1.29ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG768628909

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

Certificate IGI LG768628909

Diamond specifications and retailer prices

From $538 USD
HK$4,200 HKD
As of November 1, 2026
Save $2,812 USD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,350 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768628909 or 768628909. Listed at 14 retailers as of November 1, 2026, with prices from $538 to $3,350, a $2,812 spread on the same certified stone. Brilliant Earth lists it at $3,350. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628909
Dimensions8.22 × 5.55 × 3.49 mm
L/W Ratio1.48
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
8.22 mm5.55 mm1.29 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628909
Side View
Table 62.0%Crown 37.7°Girdle: MediumPavilion 33.5°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 1
Current: $3,350 USD|Low: $538 USD|High: $3,450 USD|Avg: $1,263 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 5$538 USD
Retailer 3$662 USD
Retailer 10$705 USD
Retailer 8$756 USD
Retailer 2$808 USD
Retailer 6$848 USD
Retailer 12$904 USD
Retailer 9$909 USD
Retailer 11$1,078 USD
Retailer 13$1,545 USD
Retailer 4$1,809 USD
Retailer 7$1,831 USD
Brilliant Earth$3,350 USD

44 data points across 13 retailers

14 retailers$538 USD to $3,350 USD

A
Cheapest Retailer
-
$538 USD
HK$4,200 HKD
A
Retailer 2
-
$662 USD
View
A
Retailer 3
-
$705 USD
View
A
Retailer 4
-
$756 USD
€720 EUR
View
A
Retailer 5
-
$808 USD
ZAR 13,059 ZAR
View
B+
Retailer 6
-
$848 USD
£668 GBP
View
A
Retailer 7
-
$904 USD
View
B+
Retailer 8
-
$909 USD
A$1,398 AUD
View
B+
Retailer 9
-
$1,078 USD
View
B+
Retailer 10
-
$1,545 USD
View
B+
Retailer 11
-
$1,809 USD
View
B+
Retailer 12
-
$1,831 USD
£1,442 GBP
View
Retailer 13
-
$2,369 USD
View
Price last confirmed 74 days ago
Most Expensive
B
Brilliant Earth
18658590A · Nov 2
$3,350 USD
View
13 more retailers have this diamond
Prices start from $538 USDSave up to $2,812 USD

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
$538 USD