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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 $1,004 SGD
$783 USD
As of October 29, 2026
Save $1,620 SGD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,624 SGD 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 $1,004 to $2,624, a $1,620 spread on the same certified stone. MOH London lists it at $2,624. 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
Colour
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

How it works →
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 29
Current: $2,624 SGD|Low: $795 SGD|High: $2,642 SGD|Avg: $1,552 SGD|+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$795 SGD
Retailer 6$1,004 SGD
Retailer 4$1,019 SGD
Retailer 5$1,037 SGD
Retailer 8$1,063 SGD
Retailer 2$1,543 SGD
Retailer 3$2,435 SGD
Retailer 7$2,476 SGD
MOH London$2,624 SGD

20 data points across 9 retailers

7 retailers$1,004 SGD to $2,624 SGD

A
Cheapest Retailer
-
$1,004 SGD
$783 USD
B+
Retailer 2
-
$1,019 SGD
$795 USD
View
B+
Retailer 3
-
$1,037 SGD
$809 USD
View
B+
Retailer 4
-
$1,543 SGD
ZAR 19,445 ZAR
View
Retailer 5
-
$2,435 SGD
$1,900 USD
View
Price last confirmed 24 days ago
B
Retailer 6
-
$2,476 SGD
$1,932 USD
View
Most Expensive
B
MOH London
LG607347402 · Oct 29
$2,624 SGD
£1,612 GBP
View
6 more retailers have this diamond
Prices start from $1,004 SGDSave up to $1,620 SGD

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
$1,004 SGD