Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

GD • D/VS1 • IGI LG846667340

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

Certificate IGI LG846667340

Diamond specifications and retailer prices

From $178 USD
As of October 30, 2026
Save $944 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,122 USD at Reve Diamonds · As of October 30, 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 standard cut grade and certified by IGI LG846667340 or 846667340. Listed at 18 retailers as of October 30, 2026, with prices from $178 to $1,122, a $944 spread on the same certified stone. Reve Diamonds lists it at $1,122. 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

1.21
Carat
D
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846667340
Dimensions7.71 × 4.98 × 3.46 mm
L/W Ratio1.55
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.71 mm4.98 mm1.21 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846667340
Side View
Table 65.0%Crown 39.6°Girdle: MediumPavilion 32.1°Culet: NoneDepth 69.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $391 USD|Low: $178 USD|High: $1,122 USD|Avg: $487 USD
Retailer 1
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Retailer 17
Reve Diamonds
October 31, 2026
Retailer 13$178 USD
Retailer 3$199 USD
Retailer 8$206 USD
Retailer 5$220 USD
Retailer 17$220 USD
Retailer 10$295 USD
Retailer 2$305 USD
Retailer 12$378 USD
Retailer 1$391 USD
Retailer 11$396 USD
Retailer 16$458 USD
Retailer 7$468 USD
Retailer 14$538 USD
Retailer 4$708 USD
Retailer 15$748 USD
Retailer 9$762 USD
Retailer 6$1,031 USD
Reve Diamonds$1,122 USD

8 data points across 18 retailers

18 retailers$178 USD to $1,122 USD

A
Cheapest Retailer
-
$178 USD
A
Retailer 2
-
$199 USD
View
Final sale: no returns
A
Retailer 3
-
$206 USD
View
Retailer 4
-
$220 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$220 USD
View
A
Retailer 6
-
$295 USD
£232 GBP
View
B+
Retailer 7
-
$305 USD
View
B+
Retailer 8
-
$378 USD
ZAR 6,111 ZAR
View
B+
Retailer 9
-
$391 USD
€372 EUR
View
B+
Retailer 10
-
$396 USD
£312 GBP
View
B+
Retailer 11
-
$458 USD
View
B+
Retailer 12
-
$468 USD
View
B+
Retailer 13
-
$538 USD
A$827 AUD
View
B
Retailer 14
-
$708 USD
View
B
Retailer 15
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$748 USD
View
B
Retailer 16
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$762 USD
View
B
Retailer 17
-
$1,031 USD
£812 GBP
View
Most Expensive
B
Reve Diamonds
36A11B55A · Oct 30
$1,122 USD
View
17 more retailers have this diamond
Prices start from $178 USDSave up to $944 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
$178 USD