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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG788625367

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

Certificate IGI LG788625367

Diamond specifications and retailer prices

From HK$2,103 HKD
As of November 4, 2026
Save HK$15,864 HKD (88%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$19,418 HKD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.28ct lab-grown radiant diamond

This 1.28ct 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 LG788625367 or 788625367. Listed at 10 retailers as of November 3, 2026, with a 754% 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

1.28
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788625367
Dimensions7.58 × 5.52 × 3.70 mm
L/W Ratio1.37
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
7.58 mm5.52 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788625367
Side View
Table 66.0%Crown 40.7°Girdle: MediumPavilion 36.9°Culet: NoneDepth 67.0%

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$19,418 HKD|Low: HK$2,016 HKD|High: HK$25,813 HKD|Avg: HK$9,127 HKD|+5.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 4, 2026
Retailer 5HK$2,016 HKD
Retailer 2HK$2,103 HKD
Retailer 11HK$2,636 HKD
Retailer 10HK$3,656 HKD
Retailer 4HK$5,249 HKD
Retailer 9HK$6,026 HKD
Retailer 3HK$6,237 HKD
Retailer 6HK$6,967 HKD
Retailer 14HK$7,501 HKD
Retailer 17HK$7,532 HKD
Retailer 16HK$8,623 HKD
Retailer 15HK$10,286 HKD
Retailer 7HK$11,761 HKD
Retailer 8HK$12,906 HKD
Retailer 12HK$15,770 HKD
Retailer 13HK$17,967 HKD
Rare CaratHK$19,418 HKD

25 data points across 17 retailers

10 retailersHK$2,103 HKD to HK$17,967 HKD

A
Cheapest Retailer
-
HK$2,103 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,636 HKD
View
A
Retailer 3
-
HK$3,656 HKD
View
B+
Retailer 4
-
HK$7,501 HKD
View
Retailer 5
-
HK$7,532 HKD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
HK$8,623 HKD
View
Retailer 7
-
HK$10,286 HKD
View
Price last confirmed 9 days ago
B
Retailer 8
-
HK$15,770 HKD
View
B
Retailer 9
-
HK$17,967 HKD
View
Most Expensive
Rare Carat
MR-186136 · Oct 18
HK$19,418 HKD
$2,475 USD
View
Price last confirmed 16 days ago
9 more retailers have this diamond
Prices start from HK$2,103 HKDSave up to HK$15,864 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
1.28ct Radiant
HK$2,103 HKD