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 $10,242 CAD
$7,332 USD
As of October 30, 2026
Save $35,870 CAD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $46,112 CAD at Brilliant Earth · As of October 29, 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 29, 2026, with prices from $10,242 to $46,112, a $35,870 spread on the same certified stone. Brilliant Earth lists it at $46,112. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $46,112 CAD|Low: $10,242 CAD|High: $47,788 CAD|Avg: $19,280 CAD|-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
October 31, 2026
Retailer 3$10,242 CAD
Retailer 11$10,653 CAD
Retailer 5$11,534 CAD
Retailer 9$11,762 CAD
Retailer 4$11,811 CAD
Retailer 15$11,881 CAD
Retailer 14$12,230 CAD
Retailer 7$13,036 CAD
Retailer 12$13,433 CAD
Retailer 8$14,629 CAD
Retailer 2$19,376 CAD
Retailer 10$22,682 CAD
Retailer 13$33,669 CAD
Retailer 6$39,916 CAD
Brilliant Earth$46,112 CAD

41 data points across 15 retailers

15 retailers$10,242 CAD to $46,112 CAD

A
Cheapest Retailer
-
$10,242 CAD
$7,332 USD
A
Retailer 2
-
$10,653 CAD
$7,626 USD
View
B+
Retailer 3
-
$11,534 CAD
$8,257 USD
View
B+
Retailer 4
-
$11,762 CAD
$8,420 USD
View
B+
Retailer 5
-
$11,811 CAD
$8,455 USD
View
B+
Retailer 6
-
$11,881 CAD
$8,505 USD
View
B+
Retailer 7
-
$12,230 CAD
HK$68,400 HKD
View
Retailer 8
-
$13,036 CAD
$9,332 USD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$13,433 CAD
$9,616 USD
View
B+
Retailer 10
-
$14,629 CAD
£8,246 GBP
View
B
Retailer 11
-
$19,376 CAD
€13,210 EUR
View
Retailer 12
-
$22,682 CAD
A$24,981 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$33,669 CAD
$24,103 USD
View
B
Retailer 14
-
$39,916 CAD
$28,575 USD
View
Most Expensive
B
Brilliant Earth
19039056A · Oct 29
$46,112 CAD
$33,010 USD
View
14 more retailers have this diamond
Prices start from $10,242 CADSave up to $35,870 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.

A
20.09ct Radiant
$10,242 CAD