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Radiant|Lab Grown|IGI

1.21ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG846663320

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

Certificate IGI LG846663320

Diamond specifications and retailer prices

From $321 SGD
As of November 3, 2026
Save $1,055 SGD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,376 SGD at MOH London · As of November 1, 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 top-tier cut grade and certified by IGI LG846663320 or 846663320. Listed at 9 retailers as of November 1, 2026, with prices from $321 to $1,376, a $1,055 spread on the same certified stone. MOH London lists it at $1,376. 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
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663320
Dimensions7.54 × 5.35 × 3.52 mm
L/W Ratio1.41
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
7.54 mm5.35 mm1.21 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663320
Side View
Table 63.0%Crown 39.6°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 65.8%

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: Nov 3
Current: $1,376 SGD|Low: $321 SGD|High: $1,384 SGD|Avg: $820 SGD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 5$321 SGD
Retailer 2$391 SGD
Retailer 9$587 SGD
Retailer 3$700 SGD
Retailer 7$764 SGD
Retailer 4$840 SGD
Retailer 6$1,108 SGD
Retailer 8$1,176 SGD
MOH London$1,376 SGD

9 data points across 9 retailers

9 retailers$321 SGD to $1,376 SGD

A
Cheapest Retailer
-
$321 SGD
A
Retailer 2
-
$391 SGD
View
A
Retailer 3
-
$587 SGD
View
B+
Retailer 4
-
$700 SGD
View
B+
Retailer 5
-
$764 SGD
View
B+
Retailer 6
-
$840 SGD
View
B+
Retailer 7
-
$1,108 SGD
View
B
Retailer 8
-
$1,176 SGD
View
Most Expensive
B
MOH London
LG846663320 · Nov 1
$1,376 SGD
£848 GBP
View
8 more retailers have this diamond
Prices start from $321 SGDSave up to $1,055 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
1.21ct Radiant
$321 SGD