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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 $475 NZD
As of November 4, 2026
Save $2,249 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,724 NZD at Michael Trio · As of November 5, 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 $475 to $2,724, a $2,249 spread on the same certified stone. Michael Trio lists it at $2,724. 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: $2,724 NZD|Low: $475 NZD|High: $2,775 NZD|Avg: $1,369 NZD|-1.8%
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 5, 2026
Retailer 9$475 NZD
Retailer 8$539 NZD
Retailer 4$710 NZD
Retailer 3$843 NZD
Retailer 14$910 NZD
Retailer 2$985 NZD
Retailer 13$1,288 NZD
Retailer 6$1,357 NZD
Retailer 11$1,696 NZD
Retailer 12$1,781 NZD
Retailer 10$1,829 NZD
Retailer 5$2,067 NZD
Retailer 7$2,100 NZD
Michael Trio$2,724 NZD

22 data points across 14 retailers

14 retailers$475 NZD to $2,724 NZD

A
Cheapest Retailer
-
$475 NZD
Final sale: no returns
A
Retailer 2
-
$539 NZD
View
A
Retailer 3
-
$710 NZD
View
A
Retailer 4
-
$843 NZD
View
A
Retailer 5
-
$910 NZD
View
A
Retailer 6
-
$985 NZD
View
A
Retailer 7
-
$1,288 NZD
View
B+
Retailer 8
-
$1,357 NZD
View
B+
Retailer 9
-
$1,696 NZD
View
B+
Retailer 10
-
$1,781 NZD
View
B+
Retailer 11
-
$1,829 NZD
View
B+
Retailer 12
-
$2,067 NZD
View
B+
Retailer 13
-
$2,100 NZD
View
Most Expensive
B+
Michael Trio
1699734723 · Nov 5
$2,724 NZD
SGD 2,075 SGD
View
13 more retailers have this diamond
Prices start from $475 NZDSave up to $2,249 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
$475 NZD