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Radiant|Lab Grown|IGI

20.30ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG813655566

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

Certificate IGI LG813655566

Diamond specifications and retailer prices

From HK$127,103 HKD
£12,755 GBP
As of November 2, 2026
Save HK$169,659 HKD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$386,010 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.3ct lab-grown radiant diamond

This 20.3ct 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 LG813655566 or 813655566. Listed at 16 retailers as of November 1, 2026, with a 133% 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

20.30
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813655566
Dimensions18.72 × 13.05 × 8.90 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.72 mm13.05 mm20.30 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813655566
Side View
Table 67.0%Crown 34.9°Girdle: Slightly ThickPavilion 31.9°Culet: NoneDepth 68.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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$127,103 HKD|Low: HK$69,414 HKD|High: HK$386,010 HKD|Avg: HK$173,950 HKD|+2.9%
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
Taylor and Hart
November 2, 2026
Retailer 7HK$104,628 HKD
Retailer 1HK$127,103 HKD
Retailer 3HK$136,436 HKD
Retailer 2HK$138,970 HKD
Retailer 8HK$139,708 HKD
Retailer 11HK$148,323 HKD
Retailer 13HK$148,801 HKD
Retailer 10HK$156,514 HKD
Retailer 15HK$158,185 HKD
Retailer 5HK$158,264 HKD
Retailer 6HK$172,725 HKD
Retailer 4HK$216,482 HKD
Retailer 14HK$220,012 HKD
Retailer 12HK$259,576 HKD
Retailer 9HK$296,762 HKD
Taylor and HartHK$386,010 HKD

16 data points across 16 retailers

16 retailersHK$127,103 HKD to HK$296,762 HKD

Retailer 1
-
HK$104,628 HKD
$13,335 USD
Price last confirmed 12 days ago
B
Retailer 2
-
HK$127,103 HKD
£12,755 GBP
View
B
Retailer 3
-
HK$136,436 HKD
$17,389 USD
View
B
Retailer 4
-
HK$138,970 HKD
$17,712 USD
View
B
Retailer 5
-
HK$139,708 HKD
$17,806 USD
View
B
Retailer 6
-
HK$148,323 HKD
$18,904 USD
View
B
Retailer 7
-
HK$148,801 HKD
$18,965 USD
View
B
Retailer 8
-
HK$156,514 HKD
$19,948 USD
View
B
Retailer 9
-
HK$158,185 HKD
$20,161 USD
View
B
Retailer 10
-
HK$158,264 HKD
$20,171 USD
View
Retailer 11
-
HK$172,725 HKD
£17,334 GBP
View
Price last confirmed 9 days ago
B
Retailer 12
-
HK$216,482 HKD
$27,591 USD
View
Final sale: no returns
B
Retailer 13
-
HK$220,012 HKD
$28,041 USD
View
B
Retailer 14
-
HK$259,576 HKD
€31,508 EUR
View
B
Retailer 15
-
HK$296,762 HKD
A$58,189 AUD
View
Most Expensive
Taylor and Hart
YFN343Y · Oct 31
HK$386,010 HKD
$49,198 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$127,103 HKDSave up to HK$169,659 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.

B
20.30ct Radiant
HK$127,103 HKD