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Radiant|Lab Grown|IGI

3.00ct G SI1 Radiant Lab Grown Diamond

EX • G/SI1 • IGI LG851623316

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

Certificate IGI LG851623316

Diamond specifications and retailer prices

From $1,286 NZD
As of November 6, 2026
Save $2,682 NZD (68%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,969 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3ct lab-grown radiant diamond

This 3ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG851623316 or 851623316. Listed at 2 retailers as of November 6, 2026, with prices from $1,286 to $3,969, a $2,682 spread on the same certified stone. Brilliant Earth lists it at $3,969. 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

3.00
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851623316
Dimensions10.28 × 7.14 × 4.69 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.28 mm7.14 mm3.00 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851623316
Side View
Table 65.0%Crown 47.1°Girdle: MediumPavilion 34.9°Culet: NoneDepth 65.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,969 NZD|Low: $1,286 NZD|High: $3,969 NZD|Avg: $2,627 NZD
Brilliant Earth
Retailer 2
November 6, 2026
Retailer 2$1,286 NZD
Brilliant Earth$3,969 NZD

3 data points across 2 retailers

2 retailers$1,286 NZD to $3,969 NZD

A
Cheapest Retailer
-
$1,286 NZD
Most Expensive
B
Brilliant Earth
22492467A · Nov 6
$3,969 NZD
$2,200 USD
View
1 more retailer has this diamond
Prices start from $1,286 NZDSave up to $2,682 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.

A
3.00ct Radiant
$1,286 NZD