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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 $9,377 SGD
$7,332 USD
As of November 2, 2026
Save $32,840 SGD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $42,216 SGD at Brilliant Earth · As of November 2, 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 16 retailers as of November 2, 2026, with prices from $9,377 to $42,216, a $32,840 spread on the same certified stone. Brilliant Earth lists it at $42,216. 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: $42,216 SGD|Low: $9,377 SGD|High: $43,751 SGD|Avg: $17,624 SGD|-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 3, 2026
Retailer 3$9,377 SGD
Retailer 11$9,753 SGD
Retailer 5$10,560 SGD
Retailer 4$10,813 SGD
Retailer 15$10,877 SGD
Retailer 14$11,197 SGD
Retailer 7$11,935 SGD
Retailer 12$12,298 SGD
Retailer 9$12,600 SGD
Retailer 2$13,393 SGD
Retailer 8$17,736 SGD
Retailer 10$20,731 SGD
Retailer 13$30,825 SGD
Retailer 6$36,544 SGD
Brilliant Earth$42,216 SGD

43 data points across 15 retailers

16 retailers$9,377 SGD to $42,216 SGD

A
Cheapest Retailer
-
$9,377 SGD
$7,332 USD
B+
Retailer 2
-
$9,753 SGD
$7,626 USD
View
B+
Retailer 3
-
$10,560 SGD
$8,257 USD
View
B+
Retailer 4
-
$10,813 SGD
$8,455 USD
View
B+
Retailer 5
-
$10,877 SGD
$8,505 USD
View
B+
Retailer 6
-
$11,197 SGD
HK$68,400 HKD
View
Retailer 7
-
$11,935 SGD
$9,332 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$12,298 SGD
$9,616 USD
View
Retailer 9
-
$12,508 SGD
$9,780 USD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
$12,600 SGD
$9,852 USD
View
B+
Retailer 11
-
$13,393 SGD
£8,246 GBP
View
B
Retailer 12
-
$17,736 SGD
€13,208 EUR
View
B
Retailer 13
-
$20,731 SGD
A$24,939 AUD
View
B
Retailer 14
-
$30,825 SGD
$24,103 USD
View
B
Retailer 15
-
$36,544 SGD
$28,575 USD
View
Most Expensive
B
Brilliant Earth
19039056A · Nov 2
$42,216 SGD
$33,010 USD
View
15 more retailers have this diamond
Prices start from $9,377 SGDSave up to $32,840 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.

A
20.09ct Radiant
$9,377 SGD