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Radiant|Lab Grown|IGI

15.09ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG758559978

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

Certificate IGI LG758559978

Diamond specifications and retailer prices

From HK$17,684 HKD
£1,775 GBP
As of November 2, 2026
Save HK$101,263 HKD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$118,947 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 15.09ct lab-grown radiant diamond

This 15.09ct 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 LG758559978 or 758559978. Listed at 19 retailers as of November 2, 2026, with prices from HK$17,684 to HK$118,947, a HK$101,263 spread on the same certified stone. Brilliant Earth lists it at HK$118,947. 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

15.09
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23.9°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758559978
Dimensions12.40 × 12.40 × 7.95 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.40 mm12.40 mm15.09 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758559978
Side View
Table 61.0%Crown 23.9°Girdle: Slightly ThickPavilion 32.5°Culet: NoneDepth 64.1%

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$118,947 HKD|Low: HK$17,684 HKD|High: HK$122,635 HKD|Avg: HK$57,095 HKD|-3.0%
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
Retailer 18
Retailer 19
November 2, 2026
Retailer 12HK$17,684 HKD
Retailer 14HK$20,651 HKD
Retailer 9HK$21,255 HKD
Retailer 16HK$22,016 HKD
Retailer 5HK$26,481 HKD
Retailer 3HK$29,972 HKD
Retailer 13HK$30,077 HKD
Retailer 18HK$30,270 HKD
Retailer 2HK$32,020 HKD
Retailer 11HK$33,252 HKD
Retailer 4HK$34,088 HKD
Retailer 19HK$35,170 HKD
Retailer 15HK$40,800 HKD
Retailer 10HK$50,803 HKD
Retailer 7HK$61,912 HKD
Retailer 8HK$76,864 HKD
Retailer 17HK$84,486 HKD
Retailer 6HK$112,160 HKD
Brilliant EarthHK$118,947 HKD

28 data points across 19 retailers

19 retailersHK$17,684 HKD to HK$118,947 HKD

A
Cheapest Retailer
-
HK$17,684 HKD
£1,775 GBP
A
Retailer 2
-
HK$20,651 HKD
$2,632 USD
View
A
Retailer 3
-
HK$21,255 HKD
$2,709 USD
View
Final sale: no returns
A
Retailer 4
-
HK$22,016 HKD
$2,806 USD
View
A
Retailer 5
-
HK$26,481 HKD
$3,375 USD
View
A
Retailer 6
-
HK$29,972 HKD
$3,820 USD
View
A
Retailer 7
-
HK$30,077 HKD
£3,018 GBP
View
A
Retailer 8
-
HK$30,270 HKD
$3,858 USD
View
A
Retailer 9
-
HK$32,020 HKD
$4,081 USD
View
B+
Retailer 10
-
HK$33,252 HKD
$4,238 USD
View
A
Retailer 11
-
HK$34,088 HKD
ZAR 70,188 ZAR
View
A
Retailer 12
-
HK$35,170 HKD
€4,269 EUR
View
B+
Retailer 13
-
HK$40,800 HKD
A$8,000 AUD
View
Retailer 14
-
HK$50,803 HKD
$6,475 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
HK$61,912 HKD
$7,891 USD
View
B
Retailer 16
-
HK$76,864 HKD
$9,797 USD
View
B
Retailer 17
-
HK$84,486 HKD
A$16,566 AUD
View
B
Retailer 18
-
HK$112,160 HKD
$14,295 USD
View
Most Expensive
B
Brilliant Earth
18212470A · Nov 2
HK$118,947 HKD
$15,160 USD
View
18 more retailers have this diamond
Prices start from HK$17,684 HKDSave up to HK$101,263 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
15.09ct Radiant
HK$17,684 HKD