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Radiant|Lab Grown|IGI

1.21ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG744515220

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

Certificate IGI LG744515220

Diamond specifications and retailer prices

From $1,046 NZD
HK$4,600 HKD
As of November 1, 2026
Save $3,326 NZD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,372 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744515220 or 744515220. Listed at 13 retailers as of October 31, 2026, with prices from $1,046 to $4,372, a $3,326 spread on the same certified stone. Brilliant Earth lists it at $4,372. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515220
Dimensions7.82 × 5.25 × 3.41 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
7.82 mm5.25 mm1.21 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515220
Side View
Table 61.0%Crown 40.5°Girdle: MediumPavilion 33.9°Culet: NoneDepth 65.0%

Caratlytics Score

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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 1
Current: $4,372 NZD|Low: $1,017 NZD|High: $5,705 NZD|Avg: $2,313 NZD|-23.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 5$1,046 NZD
Retailer 12$1,097 NZD
Retailer 3$1,111 NZD
Retailer 10$1,148 NZD
Retailer 7$1,273 NZD
Retailer 2$1,354 NZD
Retailer 6$1,414 NZD
Retailer 11$1,798 NZD
Retailer 13$2,805 NZD
Retailer 4$2,997 NZD
Retailer 8$3,072 NZD
Retailer 9$4,159 NZD
Brilliant Earth$4,372 NZD

44 data points across 13 retailers

13 retailers$1,046 NZD to $4,372 NZD

A
Cheapest Retailer
-
$1,046 NZD
HK$4,600 HKD
A
Retailer 2
-
$1,097 NZD
$617 USD
View
A
Retailer 3
-
$1,111 NZD
$625 USD
View
A
Retailer 4
-
$1,148 NZD
$646 USD
View
A
Retailer 5
-
$1,273 NZD
€682 EUR
View
B+
Retailer 6
-
$1,354 NZD
ZAR 12,309 ZAR
View
B+
Retailer 7
-
$1,414 NZD
£626 GBP
View
B+
Retailer 8
-
$1,798 NZD
$1,012 USD
View
B+
Retailer 9
-
$2,805 NZD
$1,578 USD
View
B
Retailer 10
-
$2,997 NZD
SGD 2,279 SGD
View
Retailer 11
-
$3,072 NZD
£1,361 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
$4,159 NZD
$2,340 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
17457238Y · Oct 31
$4,372 NZD
$2,460 USD
View
12 more retailers have this diamond
Prices start from $1,046 NZDSave up to $3,326 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
$1,046 NZD