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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 €422 EUR
$471 USD
As of November 1, 2026
Save €1,252 EUR (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,788 EUR 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 October 31, 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,647 EUR|Low: €422 EUR|High: €2,479 EUR|Avg: €935 EUR|-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 1, 2026
Retailer 3€422 EUR
Retailer 9€468 EUR
Retailer 5€483 EUR
Retailer 6€513 EUR
Retailer 11€533 EUR
Retailer 12€598 EUR
Retailer 10€670 EUR
Retailer 13€1,028 EUR
Retailer 4€1,062 EUR
Retailer 2€1,091 EUR
Retailer 8€1,114 EUR
Rare Carat€1,647 EUR
Retailer 7€1,674 EUR

33 data points across 13 retailers

13 retailers€422 EUR to €1,674 EUR

A
Cheapest Retailer
-
€422 EUR
$471 USD
A
Retailer 2
-
€468 EUR
ZAR 8,444 ZAR
View
A
Retailer 3
-
€513 EUR
£451 GBP
View
A
Retailer 4
-
€533 EUR
$595 USD
View
A
Retailer 5
-
€598 EUR
$668 USD
View
A
Retailer 6
-
€670 EUR
$748 USD
View
B+
Retailer 7
-
€1,028 EUR
$1,149 USD
View
B+
Retailer 8
-
€1,062 EUR
SGD 1,603 SGD
View
B+
Retailer 9
-
€1,091 EUR
£960 GBP
View
B+
Retailer 10
-
€1,114 EUR
A$1,914 AUD
View
Retailer 11
-
€1,647 EUR
$1,840 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
€1,674 EUR
$1,870 USD
View
Most Expensive
Rare Carat
LC9036889OA782 · Aug 9
€1,788 EUR
$1,997 USD
View
Price last confirmed 84 days ago
12 more retailers have this diamond
Prices start from €422 EURSave up to €1,252 EUR

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
€422 EUR