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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 $363 SGD
As of November 4, 2026
Save $1,440 SGD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,803 SGD at MOH London · As of November 2, 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 November 2, 2026, with prices from $363 to $1,803, a $1,440 spread on the same certified stone. MOH London lists it at $1,803. 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
Colour
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

How it works →
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 4
Current: $1,803 SGD|Low: $349 SGD|High: $1,824 SGD|Avg: $1,008 SGD
MOH London
Retailer 2
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Retailer 23
November 4, 2026
Retailer 22$363 SGD
Retailer 20$406 SGD
Retailer 7$420 SGD
Retailer 6$450 SGD
Retailer 23$450 SGD
Retailer 2$511 SGD
Retailer 10$588 SGD
Retailer 17$652 SGD
Retailer 5$740 SGD
Retailer 8$768 SGD
Retailer 13$776 SGD
Retailer 11$778 SGD
Retailer 12$808 SGD
Retailer 3$1,251 SGD
Retailer 16$1,259 SGD
Retailer 19$1,383 SGD
Retailer 18$1,438 SGD
Retailer 4$1,447 SGD
Retailer 15$1,466 SGD
Retailer 9$1,636 SGD
Retailer 14$1,701 SGD
Retailer 21$1,756 SGD
MOH London$1,803 SGD

30 data points across 23 retailers

21 retailers$363 SGD to $1,803 SGD

A
Cheapest Retailer
-
$363 SGD
A
Retailer 2
-
$406 SGD
View
Final sale: no returns
A
Retailer 3
-
$420 SGD
View
Retailer 4
-
$450 SGD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$450 SGD
View
A
Retailer 6
-
$511 SGD
View
Retailer 7
-
$588 SGD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
$652 SGD
View
B+
Retailer 9
-
$740 SGD
View
B+
Retailer 10
-
$768 SGD
View
B+
Retailer 11
-
$776 SGD
View
B+
Retailer 12
-
$778 SGD
View
Retailer 13
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$1,251 SGD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$1,383 SGD
View
Retailer 15
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$1,438 SGD
View
Price last confirmed 17 days ago
B
Retailer 16
-
$1,447 SGD
View
B
Retailer 17
-
$1,466 SGD
View
Retailer 18
-
$1,701 SGD
View
Price last confirmed 28 days ago
B
Retailer 19
-
$1,707 SGD
View
B
Retailer 20
-
$1,756 SGD
View
Most Expensive
B
MOH London
LG671423914 · Nov 2
$1,803 SGD
£1,111 GBP
View
20 more retailers have this diamond
Prices start from $363 SGDSave up to $1,440 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
$363 SGD