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Round|Lab Grown|IGI

1.50ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG400945003

Shape and cutting style on the report: Round brilliant

Certificate IGI LG400945003

Diamond specifications and retailer prices

From €832 EUR
As of November 5, 2026
Save €1,882 EUR (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €2,714 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG400945003 or 400945003. Listed at 6 retailers as of November 5, 2026, with prices from €832 to €2,714, a €1,882 spread on the same certified stone. NZ Jewellers lists it at €2,714. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG400945003
Dimensions7.50 × 7.55 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.50 mm7.55 mm1.50 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400945003
Side View
Table 61.0%Crown 31.8°Girdle: MediumPavilion 40.2°Culet: NoneDepth 58.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: €1,123 EUR|Low: €799 EUR|High: €3,996 EUR|Avg: €1,112 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 2€832 EUR
Retailer 3€965 EUR
Retailer 4€965 EUR
Retailer 1€1,123 EUR

6 data points across 4 retailers

6 retailers€832 EUR to €2,714 EUR

A
Cheapest Retailer
-
€832 EUR
A
Retailer 2
-
€905 EUR
View
A
Retailer 3
-
€965 EUR
View
Retailer 4
-
€965 EUR
View
Price last confirmed 25 days ago
A
Retailer 5
-
€1,123 EUR
View
Most Expensive
B
NZ Jewellers
06f09fdf-abae-46c9-89b2-fb98430fe792 · Nov 5
€2,714 EUR
$3,046 USD
View
5 more retailers have this diamond
Prices start from €832 EURSave up to €1,882 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
1.50ct Round
€832 EUR