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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

EX • D/FL

Diamond specifications and retailer prices

From HK$1,875 HKD
As of November 2, 2026
Save HK$12,781 HKD (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$14,656 HKD at Blue Nile · As of November 3, 2026
View at Blue Nile

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. Listed at 5 retailers as of November 2, 2026, with prices from HK$1,875 to HK$14,656, a HK$12,781 spread on the same certified stone. Blue Nile lists it at HK$14,656. 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
OriginLab Grown
Grading LabIGI
Dimensions7.58 × 5.52 × 3.70 mm
L/W Ratio1.37
Top View
7.58 mm5.52 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: MediumPavilionCulet: NoneDepth 67.0%

Caratlytics Score

How it works →
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 2
Current: HK$14,656 HKD|Low: HK$1,875 HKD|High: HK$21,105 HKD|Avg: HK$9,374 HKD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 2HK$1,875 HKD
Retailer 5HK$2,173 HKD
Retailer 3HK$4,221 HKD
Retailer 4HK$8,246 HKD
Blue NileHK$14,656 HKD
Retailer 6HK$21,105 HKD

12 data points across 6 retailers

5 retailersHK$1,875 HKD to HK$14,656 HKD

A
Cheapest Retailer
-
HK$1,875 HKD
A
Retailer 2
-
HK$2,173 HKD
View
A
Retailer 3
-
HK$4,221 HKD
View
B+
Retailer 4
-
HK$8,246 HKD
View
Most Expensive
B
Blue Nile
30353737 · Nov 3
HK$14,656 HKD
$1,868 USD
View
4 more retailers have this diamond
Prices start from HK$1,875 HKDSave up to HK$12,781 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$1,875 HKD