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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 $261 AUD
As of November 3, 2026
Save $1,093 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,354 AUD 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 $261 to $1,354, a $1,093 spread on the same certified stone. MOH London lists it at $1,354. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $1,354 AUD|Low: $261 AUD|High: $1,370 AUD|Avg: $619 AUD|-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$261 AUD
Retailer 3$271 AUD
Retailer 5$289 AUD
Retailer 4$345 AUD
Retailer 2$507 AUD
Retailer 10$522 AUD
Retailer 7$626 AUD
Retailer 9$753 AUD
Retailer 6$984 AUD
MOH London$1,354 AUD

30 data points across 10 retailers

14 retailers$261 AUD to $1,354 AUD

Retailer 1
-
$224 AUD
Price last confirmed 31 days ago
A
Retailer 2
-
$261 AUD
View
Final sale: no returns
A
Retailer 3
-
$271 AUD
View
Retailer 4
-
$289 AUD
View
Price last confirmed 31 days ago
Retailer 5
-
$289 AUD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$345 AUD
View
A
Retailer 7
-
$507 AUD
View
A
Retailer 8
-
$522 AUD
View
B+
Retailer 9
-
$626 AUD
View
B+
Retailer 10
-
$753 AUD
View
Retailer 11
-
$931 AUD
View
Price last confirmed 32 days ago
B
Retailer 12
-
$984 AUD
View
B
Retailer 13
-
$1,009 AUD
View
Most Expensive
B
MOH London
LG550227491 · Nov 1
$1,354 AUD
£748 GBP
View
13 more retailers have this diamond
Prices start from $261 AUDSave up to $1,093 AUD

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
$261 AUD