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Radiant|Lab Grown|IGI

1.21ct D VS2 Radiant Lab Grown Diamond

VG • D/VS2 • IGI LG550227491

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

Certificate IGI LG550227491

Diamond specifications and retailer prices

From $325 NZD
As of November 4, 2026
Save $1,361 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,685 NZD 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 VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG550227491 or 550227491. Listed at 14 retailers as of November 1, 2026, with prices from $325 to $1,685, a $1,361 spread on the same certified stone. MOH London lists it at $1,685. 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
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550227491
Dimensions6.67 × 5.39 × 3.67 mm
L/W Ratio1.24
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
6.67 mm5.39 mm1.21 ctD / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550227491
Side View
Table 63.0%Crown 41.7°Girdle: STK-THKPavilion 30.8°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,685 NZD|Low: $325 NZD|High: $1,706 NZD|Avg: $771 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 8$325 NZD
Retailer 4$337 NZD
Retailer 5$360 NZD
Retailer 2$429 NZD
Retailer 3$632 NZD
Retailer 10$649 NZD
Retailer 7$779 NZD
Retailer 9$937 NZD
Retailer 6$1,224 NZD
MOH London$1,685 NZD

30 data points across 10 retailers

14 retailers$325 NZD to $1,685 NZD

Retailer 1
-
$279 NZD
Price last confirmed 31 days ago
A
Retailer 2
-
$325 NZD
View
Final sale: no returns
A
Retailer 3
-
$337 NZD
View
Retailer 4
-
$360 NZD
View
Price last confirmed 31 days ago
Retailer 5
-
$360 NZD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$429 NZD
View
A
Retailer 7
-
$632 NZD
View
A
Retailer 8
-
$649 NZD
View
B+
Retailer 9
-
$779 NZD
View
B+
Retailer 10
-
$937 NZD
View
Retailer 11
-
$1,158 NZD
View
Price last confirmed 32 days ago
B
Retailer 12
-
$1,224 NZD
View
B
Retailer 13
-
$1,256 NZD
View
Most Expensive
B
MOH London
LG550227491 · Nov 1
$1,685 NZD
£748 GBP
View
13 more retailers have this diamond
Prices start from $325 NZDSave up to $1,361 NZD

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
$325 NZD