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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG831632172

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

Certificate IGI LG831632172

Diamond specifications and retailer prices

From $383 AUD
As of November 4, 2026
Save $1,811 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,193 AUD at Michael Trio · As of November 6, 2026
View at Michael Trio

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831632172 or 831632172. Listed at 14 retailers as of November 4, 2026, with prices from $383 to $2,193, a $1,811 spread on the same certified stone. Michael Trio lists it at $2,193. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle53.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831632172
Dimensions8.08 × 5.14 × 3.29 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm5.14 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831632172
Side View
Table 63.0%Crown 53.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 64.0%

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: $2,193 AUD|Low: $383 AUD|High: $2,226 AUD|Avg: $1,090 AUD|-1.5%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 13$383 AUD
Retailer 7$431 AUD
Retailer 8$569 AUD
Retailer 5$679 AUD
Retailer 4$733 AUD
Retailer 9$787 AUD
Retailer 3$1,037 AUD
Retailer 11$1,091 AUD
Retailer 14$1,366 AUD
Retailer 2$1,430 AUD
Retailer 10$1,467 AUD
Retailer 6$1,664 AUD
Retailer 12$1,691 AUD
Michael Trio$2,193 AUD

21 data points across 14 retailers

14 retailers$383 AUD to $2,193 AUD

A
Cheapest Retailer
-
$383 AUD
Final sale: no returns
A
Retailer 2
-
$431 AUD
View
A
Retailer 3
-
$569 AUD
View
A
Retailer 4
-
$679 AUD
View
A
Retailer 5
-
$733 AUD
View
A
Retailer 6
-
$787 AUD
View
A
Retailer 7
-
$1,037 AUD
View
B+
Retailer 8
-
$1,091 AUD
View
B+
Retailer 9
-
$1,366 AUD
View
B+
Retailer 10
-
$1,430 AUD
View
B+
Retailer 11
-
$1,467 AUD
View
Retailer 12
-
$1,664 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$1,691 AUD
View
Most Expensive
B+
Michael Trio
1699734723 · Nov 6
$2,193 AUD
SGD 2,075 SGD
View
13 more retailers have this diamond
Prices start from $383 AUDSave up to $1,811 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
$383 AUD