Radiant|Lab Grown|IGI

3.12ct G VS2 Radiant Lab Grown Diamond

GD • G/VS2 • IGI LG681556155

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

Certificate IGI LG681556155

Diamond specifications and retailer prices

From $936 USD
As of November 1, 2026
Save $369 USD (28%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,305 USD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG681556155 or 681556155. Listed at 2 retailers as of October 31, 2026, with prices from $936 to $1,305, a $369 spread on the same certified stone. Diamond Quarter lists it at $1,305. 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

3.12
Carat
G
Color
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681556155
Dimensions10.70 × 7.04 × 4.77 mm
L/W Ratio1.52
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.70 mm7.04 mm3.12 ctG / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681556155
Side View
Table 63.0%Crown 44.6°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 67.8%

Caratlytics Score

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

Last verified: Nov 1
Current: $936 USD|Low: $902 USD|High: $1,488 USD|Avg: $1,117 USD|-37.1%
September 23, 2026
Retailer 1$936 USD

4 data points across 1 retailer

2 retailers$936 USD to $1,305 USD

B+
Cheapest Retailer
-
$936 USD
Most Expensive
B+
Diamond Quarter
3.12VS2GLG5578E2N · Oct 31
$1,305 USD
£1,027 GBP
View
1 more retailer has this diamond
Prices start from $936 USDSave up to $369 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.

B+
3.12ct Radiant
$936 USD