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Radiant|Lab Grown|IGI

1.29ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508761

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

Certificate IGI LG754508761

Diamond specifications and retailer prices

From €398 EUR
As of November 4, 2026
Save €1,275 EUR (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,673 EUR at Blue Nile · As of November 3, 2026
View at Blue Nile

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 LG754508761 or 754508761. Listed at 14 retailers as of November 3, 2026, with prices from €398 to €1,673, a €1,275 spread on the same certified stone. Blue Nile lists it at €1,673. 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 angle46.9°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508761
Dimensions5.37 × 5.37 × 3.54 mm
L/W Ratio1.00
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
5.37 mm5.37 mm1.29 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508761
Side View
Table 62.0%Crown 46.9°Girdle: MED-STKPavilion 33.1°Culet: NoneDepth 65.9%

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: €1,673 EUR|Low: €350 EUR|High: €2,263 EUR|Avg: €1,009 EUR
Blue Nile
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
November 5, 2026
Retailer 8€398 EUR
Retailer 9€401 EUR
Retailer 11€472 EUR
Retailer 5€486 EUR
Retailer 2€538 EUR
Retailer 6€597 EUR
Retailer 12€629 EUR
Retailer 13€1,063 EUR
Retailer 7€1,136 EUR
Retailer 10€1,141 EUR
Retailer 4€1,148 EUR
Retailer 3€1,638 EUR
Retailer 14€1,660 EUR
Blue Nile€1,673 EUR

43 data points across 14 retailers

14 retailers€398 EUR to €1,673 EUR

A
Cheapest Retailer
-
€398 EUR
A
Retailer 2
-
€401 EUR
View
A
Retailer 3
-
€472 EUR
View
A
Retailer 4
-
€486 EUR
View
A
Retailer 5
-
€538 EUR
View
A
Retailer 6
-
€597 EUR
View
A
Retailer 7
-
€629 EUR
View
B+
Retailer 8
-
€1,063 EUR
View
B+
Retailer 9
-
€1,136 EUR
View
B
Retailer 10
-
€1,141 EUR
View
Retailer 11
-
€1,148 EUR
View
Price last confirmed 28 days ago
Retailer 12
-
€1,638 EUR
View
Price last confirmed 18 days ago
B
Retailer 13
-
€1,660 EUR
View
Most Expensive
B
Blue Nile
28885049 · Nov 3
€1,673 EUR
$1,885 USD
View
13 more retailers have this diamond
Prices start from €398 EURSave up to €1,275 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
€398 EUR