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Round|Lab Grown|IGI

1.21ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG825659842

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825659842

Diamond specifications and retailer prices

From HK$2,205 HKD
As of November 4, 2026
Save HK$10,897 HKD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$13,101 HKD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659842 or 825659842. Listed at 17 retailers as of November 4, 2026, with prices from HK$2,205 to HK$13,101, a HK$10,897 spread on the same certified stone. Brilliant Earth lists it at HK$13,101. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659842
Dimensions6.82 × 6.78 × 4.25 mm
L/W Ratio1.01
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
6.82 mm6.78 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659842
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Nov 4
Current: HK$13,101 HKD|Low: HK$2,205 HKD|High: HK$18,750 HKD|Avg: HK$6,458 HKD|-30.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 16HK$2,205 HKD
Retailer 17HK$2,283 HKD
Retailer 8HK$2,479 HKD
Retailer 12HK$3,687 HKD
Retailer 10HK$4,095 HKD
Retailer 4HK$4,103 HKD
Retailer 5HK$4,268 HKD
Retailer 9HK$4,448 HKD
Retailer 2HK$4,589 HKD
Retailer 13HK$5,037 HKD
Retailer 14HK$7,500 HKD
Retailer 7HK$7,979 HKD
Retailer 15HK$8,245 HKD
Retailer 6HK$8,685 HKD
Retailer 3HK$9,783 HKD
Retailer 11HK$10,630 HKD
Brilliant EarthHK$13,101 HKD

38 data points across 17 retailers

17 retailersHK$2,205 HKD to HK$13,101 HKD

A
Cheapest Retailer
-
HK$2,205 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,283 HKD
View
Retailer 3
-
HK$2,479 HKD
View
Price last confirmed 12 days ago
A
Retailer 4
-
HK$3,687 HKD
View
A
Retailer 5
-
HK$4,095 HKD
View
A
Retailer 6
-
HK$4,103 HKD
View
A
Retailer 7
-
HK$4,268 HKD
View
B+
Retailer 8
-
HK$4,448 HKD
View
B+
Retailer 9
-
HK$4,589 HKD
View
B+
Retailer 10
-
HK$5,037 HKD
View
B
Retailer 11
-
HK$7,500 HKD
View
B+
Retailer 12
-
HK$7,979 HKD
View
B+
Retailer 13
-
HK$8,245 HKD
View
B+
Retailer 14
-
HK$8,685 HKD
View
B
Retailer 15
-
HK$9,783 HKD
View
B
Retailer 16
-
HK$10,630 HKD
View
Most Expensive
B
Brilliant Earth
21418780A · Nov 4
HK$13,101 HKD
$1,670 USD
View
16 more retailers have this diamond
Prices start from HK$2,205 HKDSave up to HK$10,897 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
1.21ct Round
HK$2,205 HKD