Radiant|Lab Grown|IGI

1.21ct D VVS1 Radiant Lab Grown Diamond

VG • D/VVS1 • IGI LG671423914

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

Certificate IGI LG671423914

Diamond specifications and retailer prices

From $284 USD
As of October 30, 2026
Save $1,135 USD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,419 USD at MOH London · As of October 29, 2026
View at MOH London

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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG671423914 or 671423914. Listed at 21 retailers as of October 29, 2026, with prices from $284 to $1,419, a $1,135 spread on the same certified stone. MOH London lists it at $1,419. 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
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671423914
Dimensions7.74 × 5.20 × 3.69 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.74 mm5.20 mm1.21 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671423914
Side View
Table 62.0%Crown 38°Girdle: MediumPavilion 36.2°Culet: NoneDepth 71.0%

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: $1,419 USD|Low: $273 USD|High: $1,427 USD|Avg: $791 USD|+0.5%
MOH London
Retailer 2
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Retailer 23
October 29, 2026
Retailer 22$284 USD
Retailer 20$318 USD
Retailer 7$329 USD
Retailer 6$352 USD
Retailer 23$352 USD
Retailer 18$404 USD
Retailer 10$461 USD
Retailer 13$510 USD
Retailer 5$579 USD
Retailer 8$601 USD
Retailer 2$605 USD
Retailer 11$609 USD
Retailer 12$632 USD
Retailer 3$980 USD
Retailer 16$986 USD
Retailer 19$1,082 USD
Retailer 17$1,125 USD
Retailer 4$1,132 USD
Retailer 15$1,148 USD
Retailer 9$1,280 USD
Retailer 14$1,331 USD
Retailer 21$1,374 USD
MOH London$1,419 USD

28 data points across 23 retailers

21 retailers$284 USD to $1,419 USD

A
Cheapest Retailer
-
$284 USD
A
Retailer 2
-
$318 USD
View
Final sale: no returns
A
Retailer 3
-
$329 USD
View
A
Retailer 4
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$352 USD
View
A
Retailer 5
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$352 USD
View
Retailer 6
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$404 USD
£318 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
$461 USD
HK$3,600 HKD
View
Price last confirmed 25 days ago
A
Retailer 8
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$510 USD
View
B+
Retailer 9
-
$579 USD
View
B+
Retailer 10
-
$601 USD
View
B+
Retailer 11
-
$605 USD
ZAR 9,773 ZAR
View
B+
Retailer 12
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$609 USD
View
B
Retailer 13
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$980 USD
A$1,507 AUD
View
B
Retailer 14
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$1,082 USD
View
Retailer 15
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$1,125 USD
View
Price last confirmed 12 days ago
B
Retailer 16
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$1,132 USD
View
B
Retailer 17
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$1,148 USD
View
Retailer 18
-
$1,331 USD
SGD 1,799 SGD
View
Price last confirmed 24 days ago
B
Retailer 19
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$1,336 USD
£1,052 GBP
View
B
Retailer 20
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$1,374 USD
View
Most Expensive
B
MOH London
LG671423914 · Oct 29
$1,419 USD
£1,117 GBP
View
20 more retailers have this diamond
Prices start from $284 USDSave up to $1,135 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
$284 USD