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Radiant|Lab Grown|IGI

3.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG644443640

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

Certificate IGI LG644443640

Diamond specifications and retailer prices

From $2,314 NZD
As of November 5, 2026
2 retailers carry this diamond
Most expensive: $5,213 NZD at Rare Carat · As of December 10, 2025
View at Rare Carat

About this 3.05ct lab-grown radiant diamond

This 3.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644443640 or 644443640. Listed at 2 retailers as of November 5, 2026. 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

3.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644443640
Dimensions10.24 × 7.22 × 4.87 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.24 mm7.22 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644443640
Side View
Table 67.0%Crown 45.3°Girdle: MediumPavilion 35.2°Culet: NoneDepth 67.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $5,213 NZD|Low: $828 NZD|High: $9,398 NZD|Avg: $3,613 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
March 23, 2026
Retailer 2$833 NZD
Retailer 4$1,070 NZD
Retailer 5$1,479 NZD
Retailer 6$1,533 NZD
Retailer 7$1,883 NZD
Retailer 3$2,257 NZD
Rare Carat$5,213 NZD
Retailer 8$7,955 NZD

46 data points across 8 retailers

2 retailers

B+
Cheapest Retailer
-
$2,314 NZD
Most Expensive
Rare Carat
644443640 · Dec 10
$5,213 NZD
$2,890 USD
View
Price last confirmed 331 days ago
1 more retailer has this diamond
Prices start from $2,314 NZD

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+
3.05ct Radiant
$2,314 NZD