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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG815697866

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

Certificate IGI LG815697866

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$22,831 HKD at Rare Carat · As of October 21, 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 very-good cut grade and certified by IGI LG815697866 or 815697866. Listed at 10 retailers as of November 4, 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815697866
Dimensions7.50 × 5.23 × 3.65 mm
L/W Ratio1.43
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
7.50 mm5.23 mm1.28 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815697866
Side View
Table 70.0%Crown 46°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 69.8%

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$22,831 HKD|Low: HK$2,103 HKD|High: HK$25,813 HKD|Avg: HK$8,960 HKD|+23.9%
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 2HK$2,103 HKD
Retailer 6HK$2,126 HKD
Retailer 11HK$2,636 HKD
Retailer 10HK$3,656 HKD
Retailer 4HK$5,359 HKD
Retailer 7HK$6,026 HKD
Retailer 5HK$6,167 HKD
Retailer 3HK$6,551 HKD
Retailer 8HK$7,022 HKD
Retailer 15HK$7,501 HKD
Retailer 17HK$7,532 HKD
Retailer 16HK$8,623 HKD
Retailer 12HK$10,278 HKD
Retailer 9HK$12,294 HKD
Retailer 13HK$15,770 HKD
Retailer 14HK$17,967 HKD
Rare CaratHK$22,831 HKD

23 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
B+
Retailer 7
-
HK$10,278 HKD
View
B
Retailer 8
-
HK$15,770 HKD
View
B
Retailer 9
-
HK$17,967 HKD
View
Most Expensive
Rare Carat
PE1710_l_831604041 · Oct 21
HK$22,831 HKD
$2,910 USD
View
Price last confirmed 14 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