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Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG782688903

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

Certificate IGI LG782688903

Diamond specifications and retailer prices

From $836 NZD
As of November 4, 2026
Save $2,482 NZD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,543 NZD at Rare Carat · As of August 9, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG782688903 or 782688903. Listed at 13 retailers as of November 4, 2026, with a 297% 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782688903
Dimensions7.70 × 5.48 × 3.59 mm
L/W Ratio1.41
Girdle conditionFaceted
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
7.70 mm5.48 mm1.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782688903
Side View
Table 62.0%Crown 40.9°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 65.5%

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 4
Current: $3,264 NZD|Low: $836 NZD|High: $4,914 NZD|Avg: $1,837 NZD|-1.5%
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
November 5, 2026
Retailer 3$836 NZD
Retailer 8$931 NZD
Retailer 5$956 NZD
Retailer 2$1,015 NZD
Retailer 11$1,056 NZD
Retailer 12$1,185 NZD
Retailer 7$1,339 NZD
Retailer 13$2,038 NZD
Retailer 4$2,104 NZD
Retailer 6$2,155 NZD
Retailer 10$2,207 NZD
Rare Carat$3,264 NZD
Retailer 9$3,317 NZD

37 data points across 13 retailers

13 retailers$836 NZD to $3,317 NZD

A
Cheapest Retailer
-
$836 NZD
A
Retailer 2
-
$931 NZD
View
A
Retailer 3
-
$1,015 NZD
View
A
Retailer 4
-
$1,056 NZD
View
A
Retailer 5
-
$1,185 NZD
View
B+
Retailer 6
-
$1,339 NZD
View
B+
Retailer 7
-
$2,038 NZD
View
B+
Retailer 8
-
$2,104 NZD
View
B+
Retailer 9
-
$2,155 NZD
View
B+
Retailer 10
-
$2,207 NZD
View
Retailer 11
-
$3,264 NZD
View
Price last confirmed 18 days ago
B
Retailer 12
-
$3,317 NZD
View
Most Expensive
Rare Carat
LC9036889OA782 · Aug 9
$3,543 NZD
$1,997 USD
View
Price last confirmed 87 days ago
12 more retailers have this diamond
Prices start from $836 NZDSave up to $2,482 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
$836 NZD