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Round|Lab Grown|IGI

1.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG787621590

Shape and cutting style on the report: Round brilliant

Certificate IGI LG787621590

Diamond specifications and retailer prices

From HK$3,917 HKD
As of October 30, 2026
Save HK$15,933 HKD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$19,850 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round 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 LG787621590 or 787621590. Listed at 13 retailers as of October 29, 2026, with prices from HK$3,917 to HK$19,850, a HK$15,933 spread on the same certified stone. Brilliant Earth lists it at HK$19,850. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787621590
Dimensions6.97 × 7.00 × 4.30 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.97 mm7.00 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787621590
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.5%

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: Oct 30
Current: HK$19,850 HKD|Low: HK$3,917 HKD|High: HK$23,145 HKD|Avg: HK$9,360 HKD|-14.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12HK$3,917 HKD
Retailer 13HK$4,786 HKD
Retailer 11HK$5,312 HKD
Retailer 7HK$5,511 HKD
Retailer 2HK$6,067 HKD
Retailer 5HK$6,211 HKD
Retailer 8HK$6,402 HKD
Retailer 9HK$7,733 HKD
Retailer 3HK$11,209 HKD
Retailer 4HK$12,632 HKD
Retailer 10HK$12,969 HKD
Retailer 6HK$13,292 HKD
Brilliant EarthHK$19,850 HKD

42 data points across 13 retailers

13 retailersHK$3,917 HKD to HK$19,850 HKD

A
Cheapest Retailer
-
HK$3,917 HKD
A
Retailer 2
-
HK$4,786 HKD
$610 USD
View
A
Retailer 3
-
HK$5,312 HKD
$677 USD
View
A
Retailer 4
-
HK$5,511 HKD
€669 EUR
View
A
Retailer 5
-
HK$6,067 HKD
£609 GBP
View
A
Retailer 6
-
HK$6,211 HKD
A$1,218 AUD
View
A
Retailer 7
-
HK$6,402 HKD
$816 USD
View
B+
Retailer 8
-
HK$7,733 HKD
$986 USD
View
B+
Retailer 9
-
HK$11,209 HKD
$1,429 USD
View
Retailer 10
-
HK$12,632 HKD
$1,610 USD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
HK$12,969 HKD
$1,653 USD
View
B+
Retailer 12
-
HK$13,292 HKD
£1,334 GBP
View
Most Expensive
B
Brilliant Earth
19909191A · Oct 29
HK$19,850 HKD
$2,530 USD
View
12 more retailers have this diamond
Prices start from HK$3,917 HKDSave up to HK$15,933 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 Round
HK$3,917 HKD