Radiant|Lab Grown|IGI

21.01ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1 • IGI LG831628596

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

Certificate IGI LG831628596

Diamond specifications and retailer prices

From $6,626 USD
£5,218 GBP
As of October 30, 2026
Save $22,736 USD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $29,362 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 21.01ct lab-grown radiant diamond

This 21.01ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831628596 or 831628596. Listed at 16 retailers as of October 30, 2026, with prices from $6,626 to $29,362, a $22,736 spread on the same certified stone. Taylor and Hart lists it at $29,362. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

21.01
Carat
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.4°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831628596
Dimensions20.14 × 13.79 × 8.41 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
20.14 mm13.79 mm21.01 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831628596
Side View
Table 66.0%Crown 49.4°Girdle: Slightly ThickPavilion 31.4°Culet: NoneDepth 61.0%

Caratlytics Score

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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: $10,950 USD|Low: $6,604 USD|High: $29,362 USD|Avg: $11,806 USD|-2.1%
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 8$6,626 USD
Retailer 14$7,658 USD
Retailer 13$7,965 USD
Retailer 6$8,612 USD
Retailer 5$8,884 USD
Retailer 7$8,884 USD
Retailer 9$8,885 USD
Retailer 15$8,929 USD
Retailer 12$9,882 USD
Retailer 11$9,970 USD
Retailer 3$9,991 USD
Retailer 4$10,287 USD
Retailer 1$10,950 USD
Retailer 10$16,940 USD
Retailer 2$26,238 USD
Taylor and Hart$29,362 USD

30 data points across 16 retailers

16 retailers$6,626 USD to $29,362 USD

A
Cheapest Retailer
-
$6,626 USD
£5,218 GBP
B+
Retailer 2
-
$7,658 USD
View
B+
Retailer 3
-
$7,965 USD
View
B+
Retailer 4
-
$8,612 USD
View
B+
Retailer 5
-
$8,884 USD
View
Retailer 6
-
$8,884 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$8,885 USD
View
B+
Retailer 8
-
$8,929 USD
View
Final sale: no returns
B+
Retailer 9
-
$9,882 USD
View
Retailer 10
-
$9,970 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$9,991 USD
View
B+
Retailer 12
-
$10,287 USD
View
B+
Retailer 13
-
$10,950 USD
£8,622 GBP
View
Retailer 14
-
$16,940 USD
A$26,061 AUD
View
Price last confirmed 9 days ago
B
Retailer 15
-
$26,238 USD
View
Most Expensive
B
Taylor and Hart
N94ZD6T · Oct 31
$29,362 USD
View
15 more retailers have this diamond
Prices start from $6,626 USDSave up to $22,736 USD

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
21.01ct Radiant
$6,626 USD