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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

GD • D/FL

Diamond specifications and retailer prices

From €213 EUR
As of November 4, 2026
Save €1,451 EUR (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,664 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.28ct lab-grown radiant diamond

This 1.28ct 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 standard cut grade and certified by IGI. Listed at 5 retailers as of November 4, 2026, with prices from €213 to €1,664, a €1,451 spread on the same certified stone. Blue Nile lists it at €1,664. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.74 × 5.26 × 3.72 mm
L/W Ratio1.47
Top View
7.74 mm5.26 mm1.28 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: MediumPavilionCulet: NoneDepth 70.7%

Caratlytics Score

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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: €1,664 EUR|Low: €213 EUR|High: €2,397 EUR|Avg: €1,058 EUR
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3€213 EUR
Retailer 2€250 EUR
Retailer 4€479 EUR
Retailer 5€936 EUR
Blue Nile€1,664 EUR
Retailer 6€2,397 EUR

13 data points across 6 retailers

5 retailers€213 EUR to €1,664 EUR

A
Cheapest Retailer
-
€213 EUR
A
Retailer 2
-
€250 EUR
View
B+
Retailer 3
-
€479 EUR
View
B+
Retailer 4
-
€936 EUR
View
Most Expensive
C
Blue Nile
30353400 · Nov 5
€1,664 EUR
$1,868 USD
View
4 more retailers have this diamond
Prices start from €213 EURSave up to €1,451 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
1.28ct Radiant
€213 EUR