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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 $22,699 CAD
£12,795 GBP
As of October 30, 2026
Save $23,516 CAD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $68,724 CAD at Taylor and Hart · As of October 30, 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 October 30, 2026, with a 104% 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
Color
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: Oct 30
Current: $46,214 CAD|Low: $12,358 CAD|High: $68,724 CAD|Avg: $30,601 CAD
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
October 31, 2026
Retailer 7$18,628 CAD
Retailer 13$22,699 CAD
Retailer 5$24,038 CAD
Retailer 12$24,291 CAD
Retailer 11$24,742 CAD
Retailer 2$25,538 CAD
Retailer 8$26,492 CAD
Retailer 6$26,934 CAD
Retailer 10$28,163 CAD
Retailer 15$28,177 CAD
Retailer 3$30,752 CAD
Retailer 14$38,542 CAD
Retailer 9$39,170 CAD
Retailer 1$46,214 CAD
Retailer 4$51,167 CAD
Taylor and Hart$68,724 CAD

14 data points across 16 retailers

16 retailers$22,699 CAD to $46,214 CAD

Retailer 1
-
$18,628 CAD
$13,335 USD
Price last confirmed 10 days ago
B
Retailer 2
-
$22,699 CAD
£12,795 GBP
View
Retailer 3
-
$24,038 CAD
$17,208 USD
View
Price last confirmed 7 days ago
B
Retailer 4
-
$24,291 CAD
$17,389 USD
View
B
Retailer 5
-
$24,742 CAD
$17,712 USD
View
B
Retailer 6
-
$25,538 CAD
$18,282 USD
View
B
Retailer 7
-
$26,492 CAD
$18,965 USD
View
Retailer 8
-
$26,934 CAD
$19,281 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$28,163 CAD
$20,161 USD
View
B
Retailer 10
-
$28,177 CAD
$20,171 USD
View
Retailer 11
-
$30,752 CAD
£17,334 GBP
View
Price last confirmed 7 days ago
B
Retailer 12
-
$38,542 CAD
$27,591 USD
View
Final sale: no returns
B
Retailer 13
-
$39,170 CAD
$28,041 USD
View
B
Retailer 14
-
$46,214 CAD
€31,508 EUR
View
Retailer 15
-
$51,167 CAD
A$56,352 AUD
View
Price last confirmed 9 days ago
Most Expensive
Taylor and Hart
YFN343Y · Oct 30
$68,724 CAD
$49,198 USD
View
Price under review
15 more retailers have this diamond
Prices start from $22,699 CADSave up to $23,516 CAD

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
$22,699 CAD