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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 $688 SGD
HK$4,200 HKD
As of November 1, 2026
Save $3,597 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,284 SGD 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 $688 to $4,284, a $3,597 spread on the same certified stone. Brilliant Earth lists it at $4,284. 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: $4,284 SGD|Low: $688 SGD|High: $4,412 SGD|Avg: $1,617 SGD|-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$688 SGD
Retailer 3$847 SGD
Retailer 10$902 SGD
Retailer 8$967 SGD
Retailer 2$1,034 SGD
Retailer 6$1,084 SGD
Retailer 12$1,156 SGD
Retailer 9$1,162 SGD
Retailer 11$1,379 SGD
Retailer 13$1,976 SGD
Retailer 4$2,314 SGD
Retailer 7$2,342 SGD
Brilliant Earth$4,284 SGD

43 data points across 13 retailers

14 retailers$688 SGD to $4,284 SGD

A
Cheapest Retailer
-
$688 SGD
HK$4,200 HKD
A
Retailer 2
-
$847 SGD
$662 USD
View
A
Retailer 3
-
$902 SGD
$705 USD
View
A
Retailer 4
-
$967 SGD
€720 EUR
View
A
Retailer 5
-
$1,034 SGD
ZAR 13,059 ZAR
View
B+
Retailer 6
-
$1,084 SGD
£668 GBP
View
A
Retailer 7
-
$1,156 SGD
$904 USD
View
B+
Retailer 8
-
$1,162 SGD
A$1,398 AUD
View
B+
Retailer 9
-
$1,379 SGD
$1,078 USD
View
B+
Retailer 10
-
$1,976 SGD
$1,545 USD
View
B+
Retailer 11
-
$2,314 SGD
$1,809 USD
View
B+
Retailer 12
-
$2,342 SGD
£1,442 GBP
View
Retailer 13
-
$3,029 SGD
$2,369 USD
View
Price last confirmed 75 days ago
Most Expensive
B
Brilliant Earth
18658590A · Nov 2
$4,284 SGD
$3,350 USD
View
13 more retailers have this diamond
Prices start from $688 SGDSave up to $3,597 SGD

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
$688 SGD