Radiant|Lab Grown|IGI

3.12ct J VS1 Radiant Lab Grown Diamond

VG • J/VS1 • IGI LG607347402

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

Certificate IGI LG607347402

Diamond specifications and retailer prices

From $783 USD
As of October 29, 2026
Save $1,264 USD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,047 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG607347402 or 607347402. Listed at 7 retailers as of October 29, 2026, with prices from $783 to $2,047, a $1,264 spread on the same certified stone. MOH London lists it at $2,047. 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
J
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.6°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607347402
Dimensions9.80 × 7.26 × 5.12 mm
L/W Ratio1.35
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Indications of post-growth treatment.
Top View
9.80 mm7.26 mm3.12 ctJ / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG607347402
Side View
Table 63.0%Crown 37.6°Girdle: STK-THKPavilion 36.5°Culet: NoneDepth 70.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $2,047 USD|Low: $620 USD|High: $2,061 USD|Avg: $1,211 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9$620 USD
Retailer 6$783 USD
Retailer 4$795 USD
Retailer 5$809 USD
Retailer 8$829 USD
Retailer 2$1,204 USD
Retailer 3$1,900 USD
Retailer 7$1,932 USD
MOH London$2,047 USD

20 data points across 9 retailers

7 retailers$783 USD to $2,047 USD

A
Cheapest Retailer
-
$783 USD
B+
Retailer 2
-
$795 USD
View
B+
Retailer 3
-
$809 USD
View
B+
Retailer 4
-
$1,204 USD
ZAR 19,445 ZAR
View
Retailer 5
-
$1,900 USD
View
Price last confirmed 24 days ago
B
Retailer 6
-
$1,932 USD
View
Most Expensive
B
MOH London
LG607347402 · Oct 29
$2,047 USD
£1,612 GBP
View
6 more retailers have this diamond
Prices start from $783 USDSave up to $1,264 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
3.12ct Radiant
$783 USD