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Radiant|Lab Grown|IGI

20.09ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG739534203

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

Certificate IGI LG739534203

Diamond specifications and retailer prices

From HK$57,528 HKD
$7,332 USD
As of November 2, 2026
Save HK$201,472 HKD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$259,000 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.09ct lab-grown radiant diamond

This 20.09ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG739534203 or 739534203. Listed at 15 retailers as of October 31, 2026, with prices from HK$57,528 to HK$259,000, a HK$201,472 spread on the same certified stone. Brilliant Earth lists it at HK$259,000. 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

20.09
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739534203
Dimensions18.31 × 13.32 × 8.66 mm
L/W Ratio1.37
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.31 mm13.32 mm20.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739534203
Side View
Table 66.0%Crown 44°Girdle: ThickPavilion 35.5°Culet: NoneDepth 65.0%

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$259,000 HKD|Low: HK$57,528 HKD|High: HK$268,415 HKD|Avg: HK$108,168 HKD|-3.5%
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
November 2, 2026
Retailer 3HK$57,528 HKD
Retailer 11HK$59,834 HKD
Retailer 5HK$64,785 HKD
Retailer 4HK$66,339 HKD
Retailer 15HK$66,731 HKD
Retailer 14HK$68,694 HKD
Retailer 7HK$73,220 HKD
Retailer 12HK$75,448 HKD
Retailer 8HK$77,300 HKD
Retailer 9HK$81,485 HKD
Retailer 2HK$108,813 HKD
Retailer 10HK$127,188 HKD
Retailer 13HK$189,115 HKD
Retailer 6HK$224,200 HKD
Brilliant EarthHK$259,000 HKD

42 data points across 15 retailers

15 retailersHK$57,528 HKD to HK$259,000 HKD

A
Cheapest Retailer
-
HK$57,528 HKD
$7,332 USD
A
Retailer 2
-
HK$59,834 HKD
$7,626 USD
View
B+
Retailer 3
-
HK$64,785 HKD
$8,257 USD
View
B+
Retailer 4
-
HK$66,339 HKD
$8,455 USD
View
B+
Retailer 5
-
HK$66,731 HKD
$8,505 USD
View
B+
Retailer 6
-
HK$68,694 HKD
View
Retailer 7
-
HK$73,220 HKD
$9,332 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
HK$75,448 HKD
$9,616 USD
View
B+
Retailer 9
-
HK$77,300 HKD
$9,852 USD
View
B+
Retailer 10
-
HK$81,485 HKD
£8,178 GBP
View
B
Retailer 11
-
HK$108,813 HKD
€13,208 EUR
View
B
Retailer 12
-
HK$127,188 HKD
A$24,939 AUD
View
B
Retailer 13
-
HK$189,115 HKD
$24,103 USD
View
B
Retailer 14
-
HK$224,200 HKD
$28,575 USD
View
Most Expensive
B
Brilliant Earth
19039056A · Oct 31
HK$259,000 HKD
$33,010 USD
View
14 more retailers have this diamond
Prices start from HK$57,528 HKDSave up to HK$201,472 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
20.09ct Radiant
HK$57,528 HKD