Round|Lab Grown|IGI

3.12ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG600399267

Shape and cutting style on the report: Round brilliant

Certificate IGI LG600399267

Diamond specifications and retailer prices

From $1,561 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $1,561 USD at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 3.12ct lab-grown round diamond

This 3.12ct lab-grown round 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 LG600399267 or 600399267. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.12
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600399267
Dimensions9.33 × 9.36 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.33 mm9.36 mm3.12 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600399267
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $1,561 USD|Low: $1,494 USD|High: $1,926 USD|Avg: $1,660 USD|-19.0%
September 23, 2026
B2C Jewels$1,561 USD

3 data points across 1 retailer

1 retailer

B
B2C Jewels
22143193 · Oct 30
$1,561 USD
View

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B
3.12ct Round
$1,561 USD