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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG815698208

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

Certificate IGI LG815698208

Diamond specifications and retailer prices

From HK$1,875 HKD
As of November 2, 2026
Save HK$16,092 HKD (90%) vs most expensive(unlock to see where)
15 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 LG815698208 or 815698208. Listed at 15 retailers as of November 2, 2026, with a 858% 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 angle45°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698208
Dimensions7.54 × 5.35 × 3.60 mm
L/W Ratio1.41
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
7.54 mm5.35 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698208
Side View
Table 65.0%Crown 45°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 67.3%

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 2
Current: HK$19,418 HKD|Low: HK$1,875 HKD|High: HK$25,813 HKD|Avg: HK$8,552 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
Retailer 18
Retailer 19
Retailer 20
November 4, 2026
Retailer 17HK$1,875 HKD
Retailer 2HK$2,103 HKD
Retailer 10HK$2,126 HKD
Retailer 5HK$2,173 HKD
Retailer 14HK$2,636 HKD
Retailer 13HK$3,656 HKD
Retailer 18HK$4,221 HKD
Retailer 11HK$6,026 HKD
Retailer 9HK$6,167 HKD
Retailer 8HK$6,551 HKD
Retailer 12HK$7,022 HKD
Retailer 20HK$7,501 HKD
Retailer 6HK$7,532 HKD
Retailer 3HK$8,246 HKD
Retailer 4HK$8,623 HKD
Retailer 16HK$10,341 HKD
Retailer 7HK$14,656 HKD
Retailer 15HK$15,770 HKD
Retailer 19HK$17,967 HKD
Rare CaratHK$19,418 HKD

26 data points across 20 retailers

15 retailersHK$1,875 HKD to HK$17,967 HKD

A
Cheapest Retailer
-
HK$1,875 HKD
A
Retailer 2
-
HK$2,103 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,173 HKD
View
A
Retailer 4
-
HK$2,636 HKD
View
A
Retailer 5
-
HK$3,656 HKD
View
A
Retailer 6
-
HK$4,221 HKD
View
B+
Retailer 7
-
HK$7,501 HKD
View
Retailer 8
-
HK$7,532 HKD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
HK$8,246 HKD
View
B+
Retailer 10
-
HK$8,623 HKD
View
B+
Retailer 11
-
HK$10,341 HKD
View
B
Retailer 12
-
HK$14,656 HKD
View
B
Retailer 13
-
HK$15,770 HKD
View
B
Retailer 14
-
HK$17,967 HKD
View
Most Expensive
Rare Carat
VR-220174 · Oct 18
HK$19,418 HKD
$2,475 USD
View
Price last confirmed 16 days ago
14 more retailers have this diamond
Prices start from HK$1,875 HKDSave up to HK$16,092 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