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Radiant|Lab Grown|IGI

1.29ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG840630413

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

Certificate IGI LG840630413

Diamond specifications and retailer prices

From $482 NZD
$271 USD
As of November 2, 2026
Save $3,883 NZD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,461 NZD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840630413 or 840630413. Listed at 22 retailers as of November 2, 2026, with a 806% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.5°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840630413
Dimensions7.36 × 5.37 × 3.68 mm
L/W Ratio1.37
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
7.36 mm5.37 mm1.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840630413
Side View
Table 64.0%Crown 48.5°Girdle: MediumPavilion 37.6°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A+
Exceptional
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 2
Current: $4,461 NZD|Low: $482 NZD|High: $5,936 NZD|Avg: $1,847 NZD|-0.4%
Rare Carat
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 13$482 NZD
Retailer 3$572 NZD
Retailer 11$585 NZD
Retailer 10$613 NZD
Retailer 22$613 NZD
Retailer 2$631 NZD
Retailer 21$898 NZD
Retailer 5$1,010 NZD
Retailer 17$1,056 NZD
Retailer 4$1,061 NZD
Retailer 16$1,079 NZD
Retailer 19$1,144 NZD
Retailer 7$1,546 NZD
Retailer 6$1,882 NZD
Retailer 9$1,969 NZD
Retailer 8$2,059 NZD
Retailer 15$2,263 NZD
Retailer 18$2,456 NZD
Retailer 12$2,538 NZD
Retailer 20$3,892 NZD
Retailer 14$4,365 NZD
Rare Carat$4,461 NZD

20 data points across 22 retailers

22 retailers$482 NZD to $4,365 NZD

A+
Cheapest Retailer
-
$482 NZD
$271 USD
A
Retailer 2
-
$572 NZD
$322 USD
View
A
Retailer 3
-
$585 NZD
$329 USD
View
Final sale: no returns
A
Retailer 4
-
$613 NZD
$345 USD
View
Retailer 5
-
$613 NZD
$345 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$631 NZD
£279 GBP
View
A
Retailer 7
-
$898 NZD
$505 USD
View
A
Retailer 8
-
$1,010 NZD
$568 USD
View
A
Retailer 9
-
$1,056 NZD
ZAR 9,600 ZAR
View
A
Retailer 10
-
$1,061 NZD
$597 USD
View
A
Retailer 11
-
$1,079 NZD
£478 GBP
View
A
Retailer 12
-
$1,144 NZD
€613 EUR
View
B+
Retailer 13
-
$1,546 NZD
$870 USD
View
B+
Retailer 14
-
$1,882 NZD
$1,059 USD
View
B+
Retailer 15
-
$1,969 NZD
$1,108 USD
View
B+
Retailer 16
-
$2,059 NZD
$1,159 USD
View
B+
Retailer 17
-
$2,263 NZD
SGD 1,721 SGD
View
B+
Retailer 18
-
$2,456 NZD
£1,088 GBP
View
B
Retailer 19
-
$2,538 NZD
$1,428 USD
View
B
Retailer 20
-
$3,892 NZD
$2,190 USD
View
B
Retailer 21
-
$4,365 NZD
$2,456 USD
View
Most Expensive
Rare Carat
JH-252758 · Oct 18
$4,461 NZD
$2,510 USD
View
Price last confirmed 14 days ago
21 more retailers have this diamond
Prices start from $482 NZDSave up to $3,883 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+
1.29ct Radiant
$482 NZD