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Radiant|Lab Grown|IGI

12.39ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG743507511

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

Certificate IGI LG743507511

Diamond specifications and retailer prices

From HK$18,807 HKD
$2,397 USD
As of November 2, 2026
Save HK$110,575 HKD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$184,226 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 12.39ct lab-grown radiant diamond

This 12.39ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG743507511 or 743507511. Listed at 12 retailers as of November 2, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.39
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743507511
Dimensions11.37 × 11.37 × 7.60 mm
L/W Ratio1.00
Culet sizePointed
Top View
11.37 mm11.37 mm12.39 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743507511
Side View
Table 65.0%Crown 46.1°Girdle: MediumPavilion 34.9°Culet: NoneDepth 66.8%

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$36,414 HKD|Low: HK$16,030 HKD|High: HK$129,382 HKD|Avg: HK$41,371 HKD|+0.2%
Retailer 1
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 2, 2026
Retailer 3HK$16,030 HKD
Retailer 10HK$19,340 HKD
Retailer 9HK$22,390 HKD
Retailer 4HK$23,097 HKD
Retailer 7HK$24,025 HKD
Retailer 13HK$26,049 HKD
Retailer 16HK$30,647 HKD
Retailer 17HK$31,303 HKD
Retailer 5HK$31,926 HKD
Retailer 2HK$32,710 HKD
Retailer 1HK$36,414 HKD
Retailer 11HK$44,620 HKD
Retailer 8HK$50,796 HKD
Retailer 6HK$54,209 HKD
Retailer 14HK$61,098 HKD
Retailer 12HK$71,920 HKD
Retailer 15HK$129,382 HKD

11 data points across 17 retailers

12 retailersHK$18,807 HKD to HK$129,382 HKD

A
Cheapest Retailer
-
HK$18,807 HKD
$2,397 USD
A
Retailer 2
-
HK$19,340 HKD
£1,941 GBP
View
A
Retailer 3
-
HK$26,049 HKD
$3,320 USD
View
A
Retailer 4
-
HK$30,647 HKD
$3,906 USD
View
A
Retailer 5
-
HK$31,303 HKD
$3,990 USD
View
B+
Retailer 6
-
HK$32,710 HKD
$4,169 USD
View
B+
Retailer 7
-
HK$36,414 HKD
€4,420 EUR
View
B+
Retailer 8
-
HK$44,620 HKD
A$8,749 AUD
View
B
Retailer 9
-
HK$61,098 HKD
$7,787 USD
View
B
Retailer 10
-
HK$71,920 HKD
A$14,102 AUD
View
B
Retailer 11
-
HK$129,382 HKD
$16,490 USD
View
Most Expensive
Brilliant Earth
22300729A · Nov 2
HK$184,226 HKD
$23,480 USD
View
Price under review
11 more retailers have this diamond
Prices start from HK$18,807 HKDSave up to HK$110,575 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
12.39ct Radiant
HK$18,807 HKD