Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG787630559

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

Certificate IGI LG787630559

Diamond specifications and retailer prices

From $227 USD
As of November 1, 2026
Save $914 USD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,141 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG787630559 or 787630559. Listed at 14 retailers as of November 1, 2026, with prices from $227 to $1,141, a $914 spread on the same certified stone. Reve Diamonds lists it at $1,141. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.1°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787630559
Dimensions7.43 × 5.20 × 3.50 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.43 mm5.20 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787630559
Side View
Table 65.0%Crown 21.1°Girdle: MediumPavilion 32.3°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $411 USD|Low: $176 USD|High: $1,141 USD|Avg: $515 USD|+4.8%
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
Reve Diamonds
November 3, 2026
Retailer 13$183 USD
Retailer 7$204 USD
Retailer 3$213 USD
Retailer 4$227 USD
Retailer 14$227 USD
Retailer 11$375 USD
Retailer 9$392 USD
Retailer 2$402 USD
Retailer 1$411 USD
Retailer 5$549 USD
Retailer 8$555 USD
Retailer 15$731 USD
Retailer 12$772 USD
Retailer 6$785 USD
Retailer 10$1,064 USD
Reve Diamonds$1,141 USD

44 data points across 16 retailers

14 retailers$227 USD to $1,141 USD

Retailer 1
-
$227 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$227 USD
View
A
Retailer 3
-
$375 USD
View
A
Retailer 4
-
$392 USD
View
A
Retailer 5
-
$402 USD
View
A
Retailer 6
-
$411 USD
View
A
Retailer 7
-
$460 USD
View
B+
Retailer 8
-
$549 USD
View
B+
Retailer 9
-
$555 USD
View
B+
Retailer 10
-
$731 USD
View
B+
Retailer 11
-
$772 USD
View
B+
Retailer 12
-
$785 USD
View
B
Retailer 13
-
$1,064 USD
View
Most Expensive
B
Reve Diamonds
6114E3983 · Nov 1
$1,141 USD
View
13 more retailers have this diamond
Prices start from $227 USDSave up to $914 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
1.21ct Radiant
$227 USD