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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 $767 AUD
HK$4,200 HKD
As of November 1, 2026
Save $4,013 AUD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,780 AUD 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 $767 to $4,780, a $4,013 spread on the same certified stone. Brilliant Earth lists it at $4,780. 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
Colour
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

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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: Nov 1
Current: $4,780 AUD|Low: $767 AUD|High: $4,923 AUD|Avg: $1,802 AUD|-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$767 AUD
Retailer 3$945 AUD
Retailer 10$1,006 AUD
Retailer 8$1,079 AUD
Retailer 2$1,153 AUD
Retailer 6$1,210 AUD
Retailer 12$1,290 AUD
Retailer 9$1,297 AUD
Retailer 11$1,539 AUD
Retailer 13$2,205 AUD
Retailer 4$2,581 AUD
Retailer 7$2,613 AUD
Brilliant Earth$4,780 AUD

44 data points across 13 retailers

14 retailers$767 AUD to $4,780 AUD

A
Cheapest Retailer
-
$767 AUD
HK$4,200 HKD
A
Retailer 2
-
$945 AUD
$662 USD
View
A
Retailer 3
-
$1,006 AUD
$705 USD
View
A
Retailer 4
-
$1,079 AUD
€720 EUR
View
A
Retailer 5
-
$1,153 AUD
ZAR 13,059 ZAR
View
B+
Retailer 6
-
$1,210 AUD
£668 GBP
View
A
Retailer 7
-
$1,290 AUD
$904 USD
View
B+
Retailer 8
-
$1,297 AUD
View
B+
Retailer 9
-
$1,539 AUD
$1,078 USD
View
B+
Retailer 10
-
$2,205 AUD
$1,545 USD
View
B+
Retailer 11
-
$2,581 AUD
$1,809 USD
View
B+
Retailer 12
-
$2,613 AUD
£1,442 GBP
View
Retailer 13
-
$3,380 AUD
$2,369 USD
View
Price last confirmed 74 days ago
Most Expensive
B
Brilliant Earth
18658590A · Nov 2
$4,780 AUD
$3,350 USD
View
13 more retailers have this diamond
Prices start from $767 AUDSave up to $4,013 AUD

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
$767 AUD