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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 HK$3,695 HKD
As of November 4, 2026
Save HK$10,976 HKD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$15,670 HKD 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 November 4, 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

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 4
Current: HK$14,436 HKD|Low: HK$3,695 HKD|High: HK$21,733 HKD|Avg: HK$8,131 HKD|-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 4, 2026
Retailer 3HK$3,695 HKD
Retailer 7HK$4,119 HKD
Retailer 5HK$4,229 HKD
Retailer 2HK$4,488 HKD
Retailer 11HK$4,668 HKD
Retailer 12HK$5,241 HKD
Retailer 6HK$5,924 HKD
Retailer 13HK$9,015 HKD
Retailer 4HK$9,305 HKD
Retailer 8HK$9,564 HKD
Retailer 10HK$9,760 HKD
Rare CaratHK$14,436 HKD
Retailer 9HK$14,672 HKD

36 data points across 13 retailers

13 retailersHK$3,695 HKD to HK$14,672 HKD

A
Cheapest Retailer
-
HK$3,695 HKD
A
Retailer 2
-
HK$4,119 HKD
View
A
Retailer 3
-
HK$4,488 HKD
View
A
Retailer 4
-
HK$4,668 HKD
View
A
Retailer 5
-
HK$5,241 HKD
View
B+
Retailer 6
-
HK$5,924 HKD
View
B+
Retailer 7
-
HK$9,015 HKD
View
B+
Retailer 8
-
HK$9,305 HKD
View
B+
Retailer 9
-
HK$9,564 HKD
View
B+
Retailer 10
-
HK$9,760 HKD
View
Retailer 11
-
HK$14,436 HKD
View
Price last confirmed 17 days ago
B
Retailer 12
-
HK$14,672 HKD
View
Most Expensive
Rare Carat
LC9036889OA782 · Aug 9
HK$15,670 HKD
$1,997 USD
View
Price last confirmed 86 days ago
12 more retailers have this diamond
Prices start from HK$3,695 HKDSave up to HK$10,976 HKD

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
HK$3,695 HKD