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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 €418 EUR
As of November 4, 2026
Save €1,242 EUR (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,773 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 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: €1,633 EUR|Low: €418 EUR|High: €2,459 EUR|Avg: €919 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 5, 2026
Retailer 3€418 EUR
Retailer 8€466 EUR
Retailer 5€478 EUR
Retailer 2€508 EUR
Retailer 11€528 EUR
Retailer 12€593 EUR
Retailer 7€670 EUR
Retailer 13€1,020 EUR
Retailer 4€1,053 EUR
Retailer 6€1,078 EUR
Retailer 10€1,104 EUR
Rare Carat€1,633 EUR
Retailer 9€1,660 EUR

37 data points across 13 retailers

13 retailers€418 EUR to €1,660 EUR

A
Cheapest Retailer
-
€418 EUR
A
Retailer 2
-
€466 EUR
View
A
Retailer 3
-
€508 EUR
View
A
Retailer 4
-
€528 EUR
View
A
Retailer 5
-
€593 EUR
View
B+
Retailer 6
-
€670 EUR
View
B+
Retailer 7
-
€1,020 EUR
View
B+
Retailer 8
-
€1,053 EUR
View
B+
Retailer 9
-
€1,078 EUR
View
B+
Retailer 10
-
€1,104 EUR
View
Retailer 11
-
€1,633 EUR
View
Price last confirmed 18 days ago
B
Retailer 12
-
€1,660 EUR
View
Most Expensive
Rare Carat
LC9036889OA782 · Aug 9
€1,773 EUR
$1,997 USD
View
Price last confirmed 87 days ago
12 more retailers have this diamond
Prices start from €418 EURSave up to €1,242 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
€418 EUR