Radiant|Lab Grown|IGI

1.50ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1

Diamond specifications and retailer prices

From €448 EUR
As of November 6, 2026
Save €1,019 EUR (69%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,467 EUR at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI. Listed at 2 retailers as of November 6, 2026, with prices from €448 to €1,467, a €1,019 spread on the same certified stone. Helzberg Diamonds lists it at €1,467. 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

1.50
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.09 × 5.53 × 3.88 mm
L/W Ratio1.46
Top View
8.09 mm5.53 mm1.50 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 64.0%CrownGirdle: MediumPavilionCulet: NoneDepth 70.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: €1,467 EUR|Low: €448 EUR|High: €1,467 EUR|Avg: €957 EUR
Helzberg Diamonds
Retailer 2
September 23, 2026
Retailer 2€448 EUR
Helzberg Diamonds€1,467 EUR

1 data point across 2 retailers

2 retailers€448 EUR to €1,467 EUR

B+
Cheapest Retailer
-
€448 EUR
Most Expensive
C
Helzberg Diamonds
ZXZOILMMLIHP · Nov 6
€1,467 EUR
$1,638 USD
View
1 more retailer has this diamond
Prices start from €448 EURSave up to €1,019 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.

B+
1.50ct Radiant
€448 EUR