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Round|Lab Grown|IGI

1.23ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG818644662

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644662

Diamond specifications and retailer prices

From HK$2,691 HKD
As of November 4, 2026
Save HK$11,823 HKD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$14,514 HKD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.23ct lab-grown round diamond

This 1.23ct 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 LG818644662 or 818644662. Listed at 19 retailers as of November 3, 2026, with prices from HK$2,691 to HK$14,514, a HK$11,823 spread on the same certified stone. Brilliant Earth lists it at HK$14,514. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644662
Dimensions6.80 × 6.85 × 4.24 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
6.80 mm6.85 mm1.23 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644662
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.1%

Caratlytics Score

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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 4
Current: HK$14,514 HKD|Low: HK$2,691 HKD|High: HK$19,064 HKD|Avg: HK$7,159 HKD|-23.9%
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
November 6, 2026
Retailer 4HK$2,691 HKD
Retailer 3HK$2,981 HKD
Retailer 13HK$4,001 HKD
Retailer 12HK$4,197 HKD
Retailer 6HK$4,778 HKD
Retailer 9HK$4,801 HKD
Retailer 11HK$5,139 HKD
Retailer 2HK$5,233 HKD
Retailer 10HK$7,767 HKD
Retailer 5HK$9,579 HKD
Retailer 8HK$10,709 HKD
Retailer 7HK$11,909 HKD
Brilliant EarthHK$14,514 HKD

43 data points across 13 retailers

19 retailersHK$2,691 HKD to HK$14,514 HKD

A
Cheapest Retailer
-
HK$2,691 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,793 HKD
View
Retailer 3
-
HK$2,942 HKD
View
Price last confirmed 66 days ago
Retailer 4
-
HK$2,981 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
-
HK$3,311 HKD
View
B+
Retailer 6
-
HK$4,001 HKD
View
A
Retailer 7
-
HK$4,197 HKD
View
B+
Retailer 8
-
HK$4,778 HKD
View
B+
Retailer 9
-
HK$4,801 HKD
View
B+
Retailer 10
-
HK$5,139 HKD
View
B+
Retailer 11
-
HK$5,233 HKD
View
B+
Retailer 12
-
HK$5,335 HKD
View
B
Retailer 13
-
HK$7,767 HKD
View
B
Retailer 14
-
HK$9,579 HKD
View
B
Retailer 15
-
HK$9,948 HKD
View
B
Retailer 16
-
HK$10,685 HKD
View
B
Retailer 17
-
HK$10,709 HKD
View
B
Retailer 18
-
HK$11,909 HKD
View
Most Expensive
B
Brilliant Earth
21370465A · Nov 3
HK$14,514 HKD
$1,850 USD
View
18 more retailers have this diamond
Prices start from HK$2,691 HKDSave up to HK$11,823 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
1.23ct Round
HK$2,691 HKD