Radiant|Lab Grown|IGI

3.09ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG645408018

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

Certificate IGI LG645408018

Diamond specifications and retailer prices

From $494 USD
As of October 27, 2026
Save $1,119 USD (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,613 USD at NZ Jewellers · As of October 25, 2026
View at NZ Jewellers

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG645408018 or 645408018. Listed at 6 retailers as of October 25, 2026, with prices from $494 to $1,613, a $1,119 spread on the same certified stone. NZ Jewellers lists it at $1,613. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645408018
Dimensions10.39 × 7.13 × 4.79 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.39 mm7.13 mm3.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645408018
Side View
Table 64.0%Crown 40.1°Girdle: MediumPavilion 33.2°Culet: NoneDepth 67.2%

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: Oct 27
Current: $494 USD|Low: $475 USD|High: $5,240 USD|Avg: $1,399 USD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 8, 2026
Retailer 1$494 USD
Retailer 5$565 USD
Retailer 7$613 USD
Retailer 9$654 USD
Retailer 3$680 USD
Retailer 13$712 USD
Retailer 11$862 USD
Retailer 4$1,016 USD
Retailer 10$1,159 USD
Retailer 6$1,348 USD
Retailer 12$1,814 USD
Retailer 2$1,873 USD
Retailer 14$2,302 USD
Retailer 8$5,240 USD

3 data points across 14 retailers

6 retailers$494 USD to $1,613 USD

A
Cheapest Retailer
-
$494 USD
Returns within 21 days
A
Retailer 2
-
$554 USD
View
A
Retailer 3
-
$613 USD
View
Price last confirmed 12 days ago
Returns within 30 days
A
Retailer 4
-
$613 USD
View
Returns within 30 days
B+
Retailer 5
-
$1,586 USD
£1,249 GBP
View
Returns within 30 days
Most Expensive
B+
NZ Jewellers
2e40f88f-b4b0-4561-843f-b1598de75018 · Oct 25
$1,613 USD
View
Returns within 30 days
5 more retailers have this diamond
Prices start from $494 USDSave up to $1,119 USD

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
3.09ct Radiant
$494 USD