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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 $602 SGD
$471 USD
As of November 1, 2026
Save $1,788 SGD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,553 SGD 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 31, 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
Colour
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

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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: $2,352 SGD|Low: $602 SGD|High: $3,541 SGD|Avg: $1,335 SGD|-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
November 1, 2026
Retailer 3$602 SGD
Retailer 9$668 SGD
Retailer 5$690 SGD
Retailer 6$732 SGD
Retailer 11$761 SGD
Retailer 12$854 SGD
Retailer 10$956 SGD
Retailer 13$1,469 SGD
Retailer 4$1,516 SGD
Retailer 2$1,559 SGD
Retailer 8$1,590 SGD
Rare Carat$2,352 SGD
Retailer 7$2,391 SGD

33 data points across 13 retailers

13 retailers$602 SGD to $2,391 SGD

A
Cheapest Retailer
-
$602 SGD
$471 USD
A
Retailer 2
-
$668 SGD
ZAR 8,444 ZAR
View
A
Retailer 3
-
$732 SGD
£451 GBP
View
A
Retailer 4
-
$761 SGD
$595 USD
View
A
Retailer 5
-
$854 SGD
$668 USD
View
A
Retailer 6
-
$956 SGD
$748 USD
View
B+
Retailer 7
-
$1,469 SGD
$1,149 USD
View
B+
Retailer 8
-
$1,516 SGD
View
B+
Retailer 9
-
$1,559 SGD
£960 GBP
View
B+
Retailer 10
-
$1,590 SGD
A$1,914 AUD
View
Retailer 11
-
$2,352 SGD
$1,840 USD
View
Price last confirmed 13 days ago
B
Retailer 12
-
$2,391 SGD
$1,870 USD
View
Most Expensive
Rare Carat
LC9036889OA782 · Aug 9
$2,553 SGD
$1,997 USD
View
Price last confirmed 83 days ago
12 more retailers have this diamond
Prices start from $602 SGDSave up to $1,788 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
$602 SGD