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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 $20,717 SGD
£12,755 GBP
As of November 2, 2026
Save $27,654 SGD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $62,919 SGD 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: $20,717 SGD|Low: $11,314 SGD|High: $62,919 SGD|Avg: $28,354 SGD|+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 7$17,054 SGD
Retailer 1$20,717 SGD
Retailer 3$22,239 SGD
Retailer 2$22,652 SGD
Retailer 8$22,772 SGD
Retailer 11$24,176 SGD
Retailer 13$24,254 SGD
Retailer 10$25,511 SGD
Retailer 15$25,784 SGD
Retailer 5$25,797 SGD
Retailer 6$28,154 SGD
Retailer 4$35,286 SGD
Retailer 14$35,862 SGD
Retailer 12$42,310 SGD
Retailer 9$48,372 SGD
Taylor and Hart$62,919 SGD

16 data points across 16 retailers

16 retailers$20,717 SGD to $48,372 SGD

Retailer 1
-
$17,054 SGD
$13,335 USD
Price last confirmed 12 days ago
B
Retailer 2
-
$20,717 SGD
£12,755 GBP
View
B
Retailer 3
-
$22,239 SGD
$17,389 USD
View
B
Retailer 4
-
$22,652 SGD
$17,712 USD
View
B
Retailer 5
-
$22,772 SGD
$17,806 USD
View
B
Retailer 6
-
$24,176 SGD
$18,904 USD
View
B
Retailer 7
-
$24,254 SGD
$18,965 USD
View
B
Retailer 8
-
$25,511 SGD
$19,948 USD
View
B
Retailer 9
-
$25,784 SGD
$20,161 USD
View
B
Retailer 10
-
$25,797 SGD
$20,171 USD
View
Retailer 11
-
$28,154 SGD
£17,334 GBP
View
Price last confirmed 9 days ago
B
Retailer 12
-
$35,286 SGD
$27,591 USD
View
Final sale: no returns
B
Retailer 13
-
$35,862 SGD
$28,041 USD
View
B
Retailer 14
-
$42,310 SGD
€31,508 EUR
View
B
Retailer 15
-
$48,372 SGD
A$58,189 AUD
View
Most Expensive
Taylor and Hart
YFN343Y · Oct 31
$62,919 SGD
$49,198 USD
View
Price under review
15 more retailers have this diamond
Prices start from $20,717 SGDSave up to $27,654 SGD

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
$20,717 SGD